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MAX5888AEGK+ |MAX5888AEGKMAXIMN/a9avai3.3V, 16-Bit, 500Msps High Dynamic Performance DAC with Differential LVDS Inputs
MAX5888AEGK+D |MAX5888AEGKDMAXIMN/a100avai3.3V, 16-Bit, 500Msps High Dynamic Performance DAC with Differential LVDS Inputs
MAX5888EGK+D |MAX5888EGKDMAXIMN/a60avai3.3V, 16-Bit, 500Msps High Dynamic Performance DAC with Differential LVDS Inputs


MAX5888AEGK+D ,3.3V, 16-Bit, 500Msps High Dynamic Performance DAC with Differential LVDS InputsApplicationsEPB3P 1 51 B11NBase Stations: Single-/Multicarrier UMTS, B3N 2 50 B11PB2P 3 49 B12NCDMA ..
MAX5888EGK , 3.3V, 16-Bit, 500Msps High Dynamic Performance DAC with Differential LVDS Inputs
MAX5888EGK+D ,3.3V, 16-Bit, 500Msps High Dynamic Performance DAC with Differential LVDS InputsELECTRICAL CHARACTERISTICS(AV = DV = VCLK = 3.3V, AGND = DGND = CLKGND = 0, external reference, V = ..
MAX5889EGK+D ,12-Bit, 600Msps, High-Dynamic-Performance DAC with LVDS InputsApplicationsD = Dry pack.+Denotes lead-free package.Base Stations: Single-Carrier UMTS, Functional ..
MAX5890EGK+D ,14-Bit, 600Msps, High-Dynamic-Performance DAC with LVDS InputsApplicationsFunctional DiagramBase Stations: Single/Multicarrier UMTS, CDMA, GSM Communications: Fi ..
MAX5891EGK ,16-Bit, 600Msps, High-Dynamic-Performance DAC with LVDS InputsApplicationsBase Stations: Single/Multicarrier UMTS, MAX5891CDMA, GSM OUTPCommunications: Fixed Bro ..
MAZ8051-H ,Silicon planar typeElectrical characteristics within part numbers T = 25°CaTemperaturecoefficient ofZener voltage Rev ..
MAZ8051-L ,Silicon planar typeElectrical Characteristics T = 25°CaParameter Symbol Conditions Min Typ Max UnitForward voltage V ..
MAZ8051M ,Silicon planar typeZener DiodesMAZ8000 SeriesSilicon planar typeUnit : mmFor stabilization of power supplyKA
MAZ8051-M ,Silicon planar typeElectrical Characteristics T = 25°CaParameter Symbol Conditions Min Typ Max UnitForward voltage V ..
MAZ8056-H ,Silicon planar typeAbsolute Maximum Ratings T = 25°CaMarking SymbolParameter Symbol Rating UnitRefer to the list of t ..
MAZ8056-L ,Silicon planar typeElectrical characteristics within part numbers T = 25°CaTemperaturecoefficient ofZener voltage Rev ..


MAX5888AEGK+-MAX5888AEGK+D-MAX5888EGK+D
3.3V, 16-Bit, 500Msps High Dynamic Performance DAC with Differential LVDS Inputs
General Description
The MAX5888 is an advanced, 16-bit, 500Msps digital-
to-analog converter (DAC) designed to meet the
demanding performance requirements of signal synthe-
sis applications found in wireless base stations and
other communications applications. Operating from a
single 3.3V supply, this DAC offers exceptional dyna-
mic performance such as 76dBc spurious-free dynamic
range (SFDR) at fOUT= 40MHz. The DAC supports
update rates of 500Msps and a power dissipation of
only 250mW.
The MAX5888 utilizes a current-steering architecture,
which supports a full-scale output current range of 2mA
to 20mA, and allows a differential output voltage swing
between 0.1VP-Pand 1VP-P.
The MAX5888 features an integrated 1.2V bandgap ref-
erence and control amplifier to ensure high accuracy
and low noise performance. Additionally, a separate
reference input pin enables the user to apply an exter-
nal reference source for optimum flexibility and to
improve gain accuracy.
The digital and clock inputs of the MAX5888 are
designed for differential low-voltage differential signal
(LVDS)-compatible voltage levels. The MAX5888 is
available in a 68-lead QFN package with an exposed
paddle (EP) and is specified for the extended industrial
temperature range (-40°C to +85°C).
Refer to the MAX5887 and MAX5886 data sheets for
pin-compatible 14- and 12-bit versions of the MAX5888.
Applications

Base Stations: Single-/Multicarrier UMTS,
CDMA, GSM
Communications: LMDS, MMDS, Point-to-Point
Microwave
Digital Signal Synthesis
Automated Test Equipment (ATE)
Instrumentation
Features
500Msps Output Update RateSingle 3.3V Supply OperationExcellent SFDR and IMD Performance
SFDR = 76dBc at fOUT= 40MHz (to Nyquist)
IMD = -85dBc at fOUT= 10MHz
ACLR = 73dB at fOUT= 61MHz
2mA to 20mA Full-Scale Output CurrentDifferential, LVDS-Compatible Digital and Clock
Inputs
On-Chip 1.2V Bandgap ReferenceLow 130mW Power Dissipation68-Lead QFN-EP Package
MAX5888
3.3V, 16-Bit, 500Msps High Dynamic
Performance DAC with Differential LVDS Inputs
Ordering Information

19-2726; Rev 3; 12/03
PARTTEMP RANGEPIN-
PACKAGE

MAX5888AEGK-40°C to +85°C68 QFN-EP*
MAX5888EGK-40°C to +85°C68 QFN-EP*596061625455565763
VCLK
AGND
B6P
QFN

TOP VIEW
DGNDDV
DGNDB7NB7PB8NB8PB9NB9P53
B10NB10P
FSADJ
REFIO
N.C.
DACREF
AGND
IOUTPIOUTN
AGNDAGND
B13N
B13P
B14N
B14P
B15N
B15P
DGND
DVDD
SEL0
N.C.N.C.
N.C.
N.C.
DVDD
DGND
B0N
B0P
B1N
VCLK
CLKGND
CLKN
CLKP
CLKGND
B1P
B2N
B2P
B3NB12P
B3P
B6N6667
B4PB5NB5P
B4N2221201927262524182928323130
AGND
N.C.33B11P
B12NB11N17
MAX5888
Pin Configuration

*EP = Exposed paddle.
MAX5888
3.3V, 16-Bit, 500Msps High Dynamic
Performance DAC with Differential LVDS Inputs
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS

(AVDD= DVDD= VCLK = 3.3V, AGND = DGND = CLKGND = 0, external reference, VREFIO= 1.25V, differential transformer-coupled
analog output, 50Ωdouble terminated (Figure 7), IOUT= 20mA, TA= TMINto TMAX, unless otherwise noted. ≥+25°C guaranteed by
production test, <+25°C guaranteed by design and characterization. Typical values are at TA= +25°C.)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
AVDD, DVDD, VCLK to AGND................................-0.3V to +3.9V
AVDD, DVDD, VCLK to DGND...............................-0.3V to +3.9V
AVDD, DVDD, VCLK to CLKGND...........................-0.3V to +3.9V
AGND, CLKGND to DGND....................................-0.3V to +0.3V
DACREF, REFIO, FSADJ to AGND.............-0.3V to AVDD+ 0.3V
IOUTP, IOUTN to AGND................................-1V to AVDD+ 0.3V
CLKP, CLKN to CLKGND...........................-0.3V to VCLK + 0.3V
B0P/B0N–B15P/B15N, SEL0,
PD to DGND...........................................-0.3V to DVDD+ 0.3V
Continuous Power Dissipation (TA= +70°C)
68-Lead QFN-EP (derate 41.7mW/°C above +70°C)...3333mW
Thermal Resistance (θJA)..............................................+24°C/W
Operating Temperature Range ..........................-40°C to +85°C
Junction Temperature .....................................................+150°C
Storage Temperature Range ............................-60°C to +150°C
Lead Temperature (soldering, 10s) ................................+300°C
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
STATIC PERFORMANCE

Resolution16Bits
MAX5888A___, measured differentially,
TA ≥ +25°C-0.008±0.004+0.008
Integral NonlinearityINL
MAX5888___, measured differentially,
TA ≥ +25°C±0.006
% FS
MAX5888A___, measured differentially,
TA ≥ +25°C-0.006±0.002+0.006
Differential
NonlinearityDNL
MAX5888___, measured differentially,
TA ≥ +25°C±0.003
% FS
Offset ErrorOS-0.025±0.003+0.025%FS
Offset Drift±50ppm/°C
Full-Scale Gain ErrorGEFSExternal reference, TA ≥ +25°C-3.1+1.1%FS
Internal reference±100Gain DriftExternal reference±50ppm/°C
Full-Scale Output CurrentIOUT(Note 1)220mA
Min Output VoltageSingle ended-0.5V
Max Output VoltageSingle ended1.1V
Output ResistanceROUT1MΩ
Output CapacitanceCOUT5pF
DYNAMIC PERFORMANCE

Output Update RatefCLK1500Msps
fCLK = 300MHzfOUT = 16MHz, -12dB FS-165Noise Spectral DensityfCLK = 500MHzfOUT = 16MHz, -12dB FS-164
dB FS/
fOUT = 1MHz, 0dB FS88
fOUT = 1MHz, -6dB FS89Spurious-Free Dynamic Range to
NyquistSFDRfCLK = 100MHz
fOUT = 1MHz, -12dB FS85
dBc
MAX5888
3.3V, 16-Bit, 500Msps High Dynamic
Performance DAC with Differential LVDS Inputs
ELECTRICAL CHARACTERISTICS (continued)

(AVDD= DVDD= VCLK = 3.3V, AGND = DGND = CLKGND = 0, external reference, VREFIO= 1.25V, differential transformer-coupled
analog output, 50Ωdouble terminated (Figure 7), IOUT= 20mA, TA= TMINto TMAX, unless otherwise noted. ≥+25°C guaranteed by
production test, <+25°C guaranteed by design and characterization. Typical values are at TA= +25°C.)
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS

fOUT = 10MHz, -12dB FS82fCLK = 100MHzfOUT = 30MHz, -12dB FS79
fOUT = 10MHz, -12dB FS73
fOUT = 16MHz, -12dB FS,
TA ≥ +25°C6977
fOUT = 50MHz, -12dB FS72
fCLK = 200MHz
fOUT = 80MHz, -12dB FS66
fOUT = 10MHz, -12dB FS67
fOUT = 30MHz, -12dB FS65
fOUT = 50MHz, -12dB FS65
Spurious-Free Dynamic Range to
NyquistSFDR
fCLK = 500MHz
fOUT = 80MHz, -12dB FS63
dBc
Spurious-Free Dynamic Range,
25MHz BandwidthSFDRfCLK = 150MHzfOUT = 20MHz, -12dB FS82dBc
fCLK = 100MHzfOUT1 = 9MHz, -6dB FS,
fOUT2 = 10MHz, -6dB FS-85
2-Tone IMDTTIMD
fCLK = 300MHzfOU T 1 = 49M H z, - 12d B FS ,
fOU T 2 = 50M H z, - 12d B FS -83
dBc
4-Tone IMD, 1MHz Frequency
Spacing, GSM ModelFTIMDfCLK = 300MHzfOUT = 32MHz, -12dB FS-78dBc
Adjacent Channel Leakage
Power Ratio, 4.1MHz Bandwidth,
WCDMA Model
ACLRfCLK =
184.32MHzfOUT = 61.44MHz73dB
Output BandwidthBW-1dB(Note 2)450MHz
REFERENCE

Internal Reference Voltage RangeVREFIO1.131.221.3V
Reference Voltage DriftTCOREF±50ppm/°C
Reference Input Compliance
RangeVREFIOCR0.1251.250V
Reference Input ResistanceRREFIO10kΩ
ANALOG OUTPUT TIMING

Output Fall TimetFALL90% to 10% (Note 3)375ps
Output Rise TimetRISE10% to 90% (Note 3)375ps
Output Voltage Settling TimetSETTLEOutput settles to 0.025% FS (Note 3)11ns
Output Propagation DelaytPD(Note 3)1.8ns
Glitch Energy1pV-s
IOUT = 2mA30Output NoiseNOUTIOUT = 20mA30pA/√Hz
MAX5888
3.3V, 16-Bit, 500Msps High Dynamic
Performance DAC with Differential LVDS Inputs
ELECTRICAL CHARACTERISTICS (continued)

(AVDD= DVDD= VCLK = 3.3V, AGND = DGND = CLKGND = 0, external reference, VREFIO= 1.25V, differential transformer-coupled
analog output, 50Ωdouble terminated (Figure 7), IOUT= 20mA, TA= TMINto TMAX, unless otherwise noted. ≥+25°C guaranteed by
production test, <+25°C guaranteed by design and characterization. Typical values are at TA= +25°C.)
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
TIMING CHARACTERISTICS

Data to Clock Setup TimetSETUPReferenced to rising edge of clock (Note 4)-0.8ns
Data to Clock Hold TimetHOLDReferenced to rising edge of clock (Note 4)1.8ns
Data Latency3.5Clock
cycles
Minimum Clock Pulse Width HightCHCLKP, CLKN0.9ns
Minimum Clock Pulse Width LowtCLCLKP, CLKN0.9ns
LVDS LOGIC INPUTS (B0N–B15N, B0P–B15P)

Differential Input Logic HighVIH100mV
Differential Input Logic LowVIL-100mV
Common-Mode Voltage RangeVCOM1.1251.375V
Differential Input ResistanceRIN85100125Ω
Input CapacitanceCIN5pF
CMOS LOGIC INPUTS (PD, SEL0)

Input Logic HighVIH0.7 ✕
DVDDV
Input Logic LowVIL0.3 ✕
DVDDV
Input Leakage CurrentIIN-15+15µA
Input CapacitanceCIN5pF
CLOCK INPUTS (CLKP, CLKN)

Sine wave≥1.5Differential Input Voltage SwingVCLKSquare wave≥0.5VP-P
Differential Input Slew RateSRCLK(Note 5)>100V/µs
Common-Mode Voltage RangeVCOM1.5
±20%V
Input ResistanceRCLK5kΩ
Input CapacitanceCCLK5pF
POWER SUPPLIES

Analog Supply Voltage RangeAVDD3.1353.33.465V
Digital Supply Voltage RangeDVDD3.1353.33.465V
Clock Supply Voltage RangeVCLK3.1353.33.465V
fCLK = 100Msps, fOUT = 1MHz27Analog Supply CurrentIAVDDPower-down0.3mA
fCLK = 100Msps, fOUT = 1MHz7mADigital Supply CurrentIDVDDPower-down10µA
fCLK = 100Msps, fOUT = 1MHz5.6mAClock Supply CurrentIVCLKPower-down10µA
MAX5888
3.3V, 16-Bit, 500Msps High Dynamic
Performance DAC with Differential LVDS Inputs
Note 1:
Nominal full-scale current IOUT= 32 ✕IREF.
Note 2:
This parameter does not include update-rate depending effects of sin(x)/x filtering inherent in the MAX5888.
Note 3:
Parameter measured single ended into a 50Ωtermination resistor.
Note 4:
Parameter guaranteed by design.
Note 5:
A differential clock input slew rate of >100V/ms is required to achieve the specified dynamic performance.
Note 6:
Parameter defined as the change in midscale output caused by a ±5% variation in the nominal supply voltage.
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS

fCLK = 100Msps, fOUT = 1MHz130Power DissipationPDISSPower-down1mW
Power-Supply Rejection RatioPSRRAVDD = VCLK = DVDD = 3.3V ±5% (Note 6)-1+1%FS/V
ELECTRICAL CHARACTERISTICS (continued)

(AVDD= DVDD= VCLK = 3.3V, AGND = DGND = CLKGND = 0, external reference, VREFIO= 1.25V, differential transformer-coupled
analog output, 50Ωdouble terminated (Figure 7), IOUT= 20mA, TA= TMINto TMAX, unless otherwise noted. ≥+25°C guaranteed by
production test, <+25°C guaranteed by design and characterization. Typical values are at TA= +25°C.)
Typical Operating Characteristics

(AVDD= DVDD= VCLK = 3.3V, external reference, VREFIO= 1.25V, RL= 50Ω, IOUT= 20mA, TA= +25°C, unless otherwise noted.)
SPURIOUS-FREE DYNAMIC RANGE
vs. OUTPUT FREQUENCY (fCLK = 100MHz)
MAX5888 toc01
fOUT (MHz)
SFDR (dBc)
-12dB FS
0dB FS
-6dB FS
SPURIOUS-FREE DYNAMIC RANGE
vs. OUTPUT FREQUENCY (fCLK = 200MHz)
MAX5888 toc02
fOUT (MHz)
SFDR (dBc)
-6dB FS
-12dB FS
0dB FS
SPURIOUS-FREE DYNAMIC RANGE
vs. OUTPUT FREQUENCY (fCLK = 500MHz)
MAX5888 toc03
fOUT (MHz)
SFDR (dBc)
-6dB FS
0dB FS
-12dB FS
2-TONE INTERMODULATION DISTORTION
(fCLK = 100MHz)
MAX5888 toc04
fOUT (MHz)
2-TONE IMD (dBm)
2 x fT1 - fT22 x fT2 - fT1
fT2 fT1
AOUT = -6dB FS
BW = 5MHz
fT1 = 9.0252MHz
fT2 = 10.0417MHz
2-TONE IMD vs. OUTPUT FREQUENCY
(1MHz CARRIER SPACING, fCLK = 300MHz)
MAX5888 toc05
fOUT (MHz)
TWO-TONE IMD (dBc)2575100
-6dB FS
-12dB FS
2-TONE INTERMODULATION DISTORTION
(fCLK = 450MHz)
MAX5888 toc06
fOUT (MHz)
2-TONE IMD (dBm)2 x fT1 - fT22 x fT2 - fT1
fT2 fT1
AOUT = -6dB FS
BW = 5MHz
fT1 = 79.2114MHz
fT2 = 80.0903MHz
MAX5888
3.3V, 16-Bit, 500Msps High Dynamic
Performance DAC with Differential LVDS Inputs
Typical Operating Characteristics (continued)

(AVDD= DVDD= VCLK = 3.3V, external reference, VREFIO= 1.25V, RL= 50Ω, IOUT= 20mA, TA= +25°C, unless otherwise noted.)
SFDR vs. TEMPERATURE
(fCLK = 300MHz, AOUT = -6dB FS, IOUT = 20mA)

MAX5888toc08
TEMPERATURE (°C)
SFDR (dBc)
fOUT = 80MHz
fOUT = 120MHz
fOUT = 10MHz
fOUT = 40MHz
SFDR vs. OUTPUT FREQUENCY
(fCLK = 200MHz, AOUT = -6dB FS)
MAX5888toc07
fOUT (MHz)
SFDR (dBc)
IOUT = 20mA
IOUT = 5mAIOUT = 10mA
DIFFERENTIAL NONLINEARTIY
vs. DIGITAL INPUT CODE
MAX5888toc10
DIGITAL INPUT CODE
DNL (LSB)30000200001000050000400007000060000
INTEGRAL NONLINEARITY
vs. DIGITAL INPUT CODE
MAX5888toc9
DIGITAL INPUT CODE
INL (LSB)30000200001000050000400007000060000
8-TONE MULTITONE POWER RATIO PLOT
(fCLK = 300MHz, fCENTER = 31.9702MHz)
MAX5888 toc11
fOUT (MHz)
8-TONE MTPR (dBm)
fT2 fT6
fT3 fT7
fT4 fT8
fT1 fT5
AOUT = -18dB FS
BW = 12MHz
fT1 = 28.0151MHz
fT2 = 29.0405MHz
fT3 = 30.0659MHz
fT4= 31.0181MHz
fT5 = 33.06881MHz
fT6 = 34.0209MHz
fT7 = 35.0464MHz
fT8= 36.0718MHz
POWER DISSIPATION vs. CLOCK FREQUENCY
(fOUT = 10MHz, AOUT = 0dB FS, IOUT = 20mA)
MAX5888toc12
fCLK (MHz)
POWER DISSIPATION (mW)
POWER DISSIPATION vs. SUPPLY VOLTAGE
(fCLK = 100MHz, fOUT = 10MHz, IFS = 20mA)
MAX5888toc13
SUPPLY VOLTAGE (V)
POWER DISSIPATION (mW)
EXTERNAL REFERENCE
INTERNAL REFERENCE
MAX5888
3.3V, 16-Bit, 500Msps High Dynamic
Performance DAC with Differential LVDS Inputs
Pin Description
PINNAMEFUNCTION
B3PData Bit 3B3NComplementary Data Bit 3B2PData Bit 2B2NComplementary Data Bit 2B1PData Bit 1B1NComplementary Data Bit 1B0PData Bit 0 (LSB)B0NComplementary Data Bit 0 (LSB)
9, 41, 60, 62DGNDDigital Ground
10, 40, 61DVDDDigital Supply Voltage. Accepts a supply voltage range of 3.135V to 3.465V. Bypass each pin with a
0.1µF capacitor to the nearest DGND.
11, 16VCLKClock Supply Voltage. Accepts a supply voltage range of 3.135V to 3.465V. Bypass each pin with a
0.1µF capacitor to the nearest CLKGND.
12, 15CLKGNDClock GroundCLKPConverter Clock Input. Positive input terminal for the differential converter clock.CLKNComplementary Converter Clock Input. Negative input terminal for the differential converter clock.PDPower-Down Input. PD pulled high enables the DAC’s power-down mode. PD pulled low allows for
normal operation of the DAC. This pin features an internal pulldown resistor.
18, 24, 29,
30, 32AVDDAnalog Supply Voltage. Accepts a supply voltage range of 3.135V to 3.465V. Bypass each pin with a
0.1µF capacitor to the nearest AGND.
19, 25, 28,
31, 33, EPAGNDAnalog Ground. Exposed paddle (EP) must be connected to AGND.REFIOReference I/O. Output of the internal 1.2V precision bandgap reference. Bypass with a 1µF capacitor
to AGND. Can be driven with an external reference source.FSADJFull-Scale Adjust Input. This input sets the full-scale output current of the DAC. For 20mA full-scale
output current, connect a 2kΩ resistor between FSADJ and DACREF.DACREFReturn Path for the Current Set Resistor. For 20mA full-scale output current, connect a 2kΩ resistor
between FSADJ and DACREF.
23, 34–38N.C.Not Connected. Do not connect to these pins. Do not tie these pins together.IOUTNComplementary DAC Output. Negative terminal for differential current output. The full-scale output
current range can be set from 2mA to 20mA.IOUTPDAC Output. Positive terminal for differential current output. The full-scale output current range can
be set from 2mA to 20mA.SEL0
Mode Select Input SEL0. Set high to activate the segment shuffling function. Since this pin features an
internal pulldown resistor, it can be left open or pulled low to disable the segment-shuffling function.
See Segment Shuffling in the Detailed Description section for more information.B15PData Bit 15 (MSB)B15NComplementary Data Bit 15 (MSB)B14PData Bit 14
MAX5888
3.3V, 16-Bit, 500Msps High Dynamic
Performance DAC with Differential LVDS Inputs
Detailed Description
Architecture

The MAX5888 is a high-performance, 16-bit, current-
steering DAC (Figure 1) capable of operating with clock
speeds up to 500MHz. The converter consists of sepa-
rate input and DAC registers, followed by a current-
steering circuit. This circuit is capable of generating
differential full-scale currents in the range of 2mA to
20mA. An internal current-switching network in combi-
nation with external 50Ωtermination resistors convert
the differential output currents into a differential output
voltage with a peak-to-peak output voltage range of
0.1V to 1V. An integrated 1.2V bandgap reference, con-
trol amplifier, and user-selectable external resistor
determine the data converter’s full-scale output range.
Reference Architecture and Operation

The MAX5888 supports operation with the on-chip 1.2V
bandgap reference or an external reference voltage
source. REFIO serves as the input for an external, low-
impedance reference source, and as the output if the
DAC is operating with the internal reference. For stable
operation with the internal reference, REFIO should be
decoupled to AGND with a 0.1µF capacitor. Due to its
limited output drive capability REFIO must be buffered
with an external amplifier, if heavier loading is required.
The MAX5888’s reference circuit (Figure 2) employs a
control amplifier, designed to regulate the full-scale
current IOUTfor the differential current outputs of the
DAC. Configured as a voltage-to-current amplifier, the
output current can be calculated as follows:
IOUT= 32 ✕IREFIO- 1LSB
IOUT= 32 ✕IREFIO- (IOUT/ 216)
where IREFIOis the reference output current (IREFIO=
VREFIO/RSET) and IOUTis the full-scale output current of
the DAC. Located between FSADJ and DACREF, RSET
is the reference resistor, which determines the amplifi-
er’s output current for the DAC. See Table 1 for a matrix
of different IOUTand RSETselections.
PINNAMEFUNCTION
B14NComplementary Data Bit 14B13PData Bit 13B13NComplementary Data Bit 13B12PData Bit 12B12NComplementary Data Bit 12B11PData Bit 11B11NComplementary Data Bit 11B10PData Bit 10B10NComplementary Data Bit 10B9PData Bit 9B9NComplementary Data Bit 9B8PData Bit 8B8NComplementary Data Bit 8B7PData Bit 7B7NComplementary Data Bit 7B6PData Bit 6B6NComplementary Data Bit 6B5PData Bit 5B5NComplementary Data Bit 5B4PData Bit 4B4NComplementary Data Bit 4
Pin Description (continued)
MAX5888
3.3V, 16-Bit, 500Msps High Dynamic
Performance DAC with Differential LVDS Inputs
Analog Outputs (IOUTP, IOUTN)

The MAX5888 outputs two complementary currents
(IOUTP, IOUTN) that can be operated in a single-
ended or differential configuration. A load resistor can
convert these two output currents into complementary
single-ended output voltages. The differential voltage
existing between IOUTP and IOUTN can also be con-
verted to a single-ended voltage using a transformer or
a differential amplifier configuration. If no transformer is
used, the output should have a 50Ωtermination to the
analog ground and a 50Ωresistor between the outputs.
Although not recommended, because of additional
noise pickup from the ground plane, for single-ended
1.2V
REFERENCE
CURRENT-STEERING
DAC
FUNCTION
SELECTION
BLOCK
AGND
SEL0DGNDDVDD
REFIO
REFADJ
CLKN
CLKP
AVDD
IOUTP
IOUTN
SEGMENT SHUFFLING/LATCH
DECODER
LVDS RECEIVER INPUT/LATCH
DIFFERENTIAL DIGITAL INPUT B0 THROUGH B15
MAX5888
Figure 1. Simplified MAX5888 Block Diagram
RSET (kΩ)FULL-SCALE CURRENT
IOUT (mA)
REFERENCE CURRENT
IREF (µA)CALCULATED1% EIA STD
OUTPUT VOLTAGE
VIOUTP/N* (mVP-P)
62.519.219.1100156.257.687.5250312.53.843.83500468.752.562.557506251.921.911000
Table 1. IOUTand RSETSelection Matrix Based on a Typical 1.200V Reference Voltage

*Terminated into a 50Ωload.
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