MAX1449EHJ ,10-bit, 105Msps, single +3.3V low-power ADC with internal reference. For medical ultrasound imaging, CCD pixel processing, IR focal plane arrays, radar, IF & baseband digitizationELECTRICAL CHARACTERISTICS(V = +3.3V, OV = +2.0V; 0.1µF and 1.0µF capacitors from REFP, REFN, and C ..
MAX1449EHJ+ ,10-Bit, 105Msps, Single +3.3V, Low-Power ADC with Internal ReferenceELECTRICAL CHARACTERISTICS(V = 3.3V, OV = 2V, 0.1µF and 1µF capacitors from REFP, REFN, and COM to ..
MAX144ACPA+ ,+2.7V, Low-Power, 2-Channel, 108ksps, Serial 12-Bit ADCs in 8-Pin µMAXELECTRICAL CHARACTERISTICS(V = +2.7V to +5.25V, V = 2.5V, 0.1μF capacitor at REF, f = 2.17MHz, 16 c ..
MAX144AEUA+ ,+2.7V, Low-Power, 2-Channel, 108ksps, Serial 12-Bit ADCs in 8-Pin µMAXFeaturesThe MAX144/MAX145 low-power, 12-bit analog-to-♦ Single-Supply Operation (+2.7V to +5.25V) ® ..
MAX144AEUA+T ,+2.7V, Low-Power, 2-Channel, 108ksps, Serial 12-Bit ADCs in 8-Pin µMAXApplications0°C toMAX144BCUA 8 µMAX ±1 U8-1+70°CBattery-Powered Systems Instrumentation 0°C toMAX14 ..
MAX144BCPA ,+2.7V, Low-Power, 2-Channel, 108ksps, Serial 12-Bit ADCs in 8-Pin レMAXMAX144/MAX14519-1387; Rev 0; 11/98+2.7V, Low-Power, 2-Channel, 108ksps,Serial 12-Bit ADCs in 8-Pin ..
MAX4042ESA ,Single/Dual/Quad / Low-Cost / SOT23 / Micropower Rail-to-Rail I/O Op AmpsFeaturesThe MAX4040–MAX4044 family of micropower op amps' Single-Supply Operation Down to +2.4Voper ..
MAX4042ESA ,Single/Dual/Quad / Low-Cost / SOT23 / Micropower Rail-to-Rail I/O Op AmpsELECTRICAL CHARACTERISTICS—T = +25°CA(V = +5.0V, V = 0, V = 0, V = V / 2, SHDN = V , R = 100kΩ tied ..
MAX4042ESA+ ,Single/Dual/Quad, Low-Cost, SOT23, Micropower Rail-to-Rail I/O Op AmpsELECTRICAL CHARACTERISTICS—T = +25°CA(V = +5.0V, V = 0V, V = 0V, V = V / 2, SHDN = V , R = 100kΩ ti ..
MAX4042EUA ,Single/Dual/Quad / Low-Cost / SOT23 / Micropower Rail-to-Rail I/O Op AmpsGeneral Description ________
MAX4042EUA+ ,Single/Dual/Quad, Low-Cost, SOT23, Micropower Rail-to-Rail I/O Op AmpsFeaturesThe MAX4040–MAX4044 family of micropower op amps♦ Single-Supply Operation Down to +2.4Voper ..
MAX4043ESD ,Single/Dual/Quad / Low-Cost / SOT23 / Micropower Rail-to-Rail I/O Op AmpsMAX4040–MAX404419-1377; Rev 0; 5/98Single/Dual/Quad, Low-Cost, SOT23, Micropower Rail-to-Rail I/O O ..
MAX1449EHJ
10-bit, 105Msps, single +3.3V low-power ADC with internal reference. For medical ultrasound imaging, CCD pixel processing, IR focal plane arrays, radar, IF & baseband digitization
General DescriptionThe MAX1449 +3.3V, 10-bit analog-to-digital converter
(ADC) features a fully differential input, a pipelined 10-
stage ADC architecture with wideband track-and-hold
(T/H), and digital error correction incorporating a fully
differential signal path. The ADC is optimized for low-
power, high-dynamic performance in imaging and digi-
tal communications applications. The converter
operates from a single +2.7V to +3.6V supply, consum-
ing only 186mW while delivering a 58.5dB (typ) signal-
to-noise ratio (SNR) at a 20MHz input frequency. The
fully differential input stage has a -3dB 400MHz band-
width and may be operated with single-ended inputs. In
addition to low operating power, the MAX1449 features
a 5µA power-down mode for idle periods.
An internal +2.048V precision bandgap reference is
used to set the ADC’s full-scale range. A flexible refer-
ence structure allow’s the user to supply a buffered,
direct, or externally derived reference for applications
requiring increased accuracy or a different input volt-
age range.
Lower speed, pin-compatible versions of the MAX1449
are also available. Refer to the MAX1444 data sheet for
a 40Msps version, the MAX1446 data sheet for a
60Msps version, and the MAX1448 data sheet for 80Msps.
The MAX1449 has parallel, offset binary, CMOS-com-
patible, three-state outputs that can be operated from
+1.7V to +3.6V to allow flexible interfacing. The device
is available in a 5mm x 5mm 32-pin TQFP package and
is specified over the extended industrial (-40°C to
+85°C) temperature range.
________________________ApplicationsUltrasound Imaging
CCD Imaging
Baseband and IF Digitization
Digital Set-Top Boxes
Video Digitizing Applications
FeaturesSingle +3.3V OperationExcellent Dynamic Performance
58.5dB SNR at fIN= 20MHz
72dBc SFDR at fIN= 20MHz Low Power
62mA (Normal Operation)
5µA (Shutdown Mode)Fully Differential Analog InputWide 2Vp-p Differential Input Voltage Range400MHz -3dB Input BandwidthOn-Chip +2.048V Precision Bandgap ReferenceCMOS-Compatible Three-State Outputs32-Pin TQFP PackageEvaluation Kit Available
MAX1449
10-Bit, 105Msps, Single +3.3V, Low-Power
ADC with Internal Reference
Functional Diagram
Ordering Information
Pin Configuration appears at end of data sheet.
Pin-Compatible, Lower Speed
MAX1449
10-Bit, 105Msps, Single +3.3V, Low-Power
ADC with Internal Reference
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS(VDD= +3.3V, OVDD= +2.0V; 0.1µF and 1.0µF capacitors from REFP, REFN, and COM to GND; VREFIN= +2.048V, REFOUT
connected to REFIN through a 10kΩresistor, VIN= 2Vp-p (differential with respect to COM), CL ≈10pF at digital outputs, fCLK=
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.
VDD, OVDDto GND...............................................-0.3V to +3.6V
OGND to GND.......................................................-0.3V to +0.3V
IN+, IN- to GND........................................................-0.3V to VDD
REFIN, REFOUT, REFP,
REFN, and COM to GND..........................-0.3V to (VDD+ 0.3V)OE, PD, CLK to GND..................................-0.3V to (VDD+ 0.3V)
D9–D0 to GND.........................................-0.3V to (OVDD+ 0.3V)
Continuous Power Dissipation (TA= +70°C)
32-Pin TQFP (derate 11.1mW/°C above +70°C)...........889mW
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
MAX1449
10-Bit, 105Msps, Single +3.3V, Low-Power
ADC with Internal Reference
ELECTRICAL CHARACTERISTICS (continued)(VDD= +3.3V, OVDD= +2.0V; 0.1µF and 1.0µF capacitors from REFP, REFN, and COM to GND; VREFIN= +2.048V, REFOUT
connected to REFIN through a 10kΩresistor, VIN= 2Vp-p (differential with respect to COM), CL≈10pF at digital outputs, fCLK=
105MHz, TA= TMINto TMAX, unless otherwise noted. Typical values are at TA =+25°C.)
Note 1:SNR, SINAD, THD, SFDR and HD3 are based on an analog input voltage of -0.5dB FS referenced to a +1.024V full-scale
input voltage range.
Note 2:Intermodulation distortion is the total power of the intermodulation products relative to the individual carrier. This number is
6dB better if referenced to the two-tone envelope.
Note 3:Digital outputs settle to VIH,VIL.
Note 4:With REFIN driven externally, REFP, COM, and REFN are left floating while powered down.
MAX1449
10-Bit, 105Msps, Single +3.3V, Low-Power
ADC with Internal Reference
ELECTRICAL CHARACTERISTICS (continued)(VDD= +3.3V, OVDD= +2.0V; 0.1µF and 1.0µF capacitors from REFP, REFN, and COM to GND; VREFIN= +2.048V, REFOUT
connected to REFIN through a 10kΩresistor, VIN= 2Vp-p (differential with respect to COM), CL≈10pF at digital outputs,
fCLK= 105MHz, TA= TMINto TMAX, unless otherwise noted. Typical values are at TA =+25°C.)
MAX1449
10-Bit, 105Msps, Single +3.3V, Low-Power
ADC with Internal ReferenceFFT PLOT (fIN = 7.5MHz,
8192-POINT FFT, DIFFERENTIAL INPUT)
MAX1449 toc01
ANALOG INPUT FREQUENCY (MHz)
AMPLITUDE (dB)
MAX1449 toc02
FFT PLOT (fIN = 19.99MHz,
8192-POINT FFT, DIFFERENTIAL INPUT)ANALOG INPUT FREQUENCY (MHz)
AMPLITUDE (dB)
MAX1449 toc03
UNDERSAMPLING FFT PLOT (fIN = 50.12MHz,
8192-POINT FFT, DIFFERENTIAL INPUT)ANALOG INPUT FREQUENCY (MHz)
AMPLITUDE (dB)
MAX1449 toc04
FFT PLOT (fIN = 7.5MHz,
8192-POINT FFT, SINGLE-ENDED INPUT)ANALOG INPUT FREQUENCY (MHz)
AMPLITUDE (dB)
MAX1449 toc05
FFT PLOT (fIN = 19.99MHz,
8192-POINT FFT, SINGLE-ENDED INPUT)ANALOG INPUT FREQUENCY (MHz)
AMPLITUDE (dB)
MAX1449 toc06
TWO-TONE INTERMODULATION
(8192-POINT IMD, DIFFERENTIAL INPUT)ANALOG INPUT FREQUENCY (MHz)
AMPLITUDE (dB)
SPURIOUS-FREE DYNAMIC RANGE
vs. ANALOG INPUT FREQUENCY
MAX1449 toc07
ANALOG INPUT FREQUENCY (MHz)
SFDR (dBc)62
SIGNAL-TO-NOISE RATIO
vs. ANALOG INPUT FREQUENCY
MAX1449 toc08
ANALOG INPUT FREQUENCY (MHz)
SNR (dB)54
THD (dBc)
TOTAL HARMONIC DISTORTION
vs. ANALOG INPUT FREQUENCY
MAX1449 toc09
ANALOG INPUT FREQUENCY (MHz)
Typical Operating Characteristics
(VDD= +3.3V, OVDD= +2.0V, internal reference, differential input at -0.5dB FS, fCLK = 106.2345MHz, CL≈10pF, TA= +25°C,
unless otherwise noted.)
MAX1449
10-Bit, 105Msps, Single +3.3V, Low-Power
ADC with Internal ReferenceSINAD (dB)10100
SIGNAL-T0-NOISE PLUS DISTORTION
vs. ANALOG INPUT FREQUENCYMAX1449 toc10
ANALOG INPUT FREQUENCY (MHz)100010010
FULL-POWER INPUT BANDWIDTH vs.
ANALOG INPUT FREQUENCY, SINGLE-ENDEDMAX1449 toc11
ANALOG INPUT FREQUENCY (MHz)
AMPLITUDE (dB)100010010
SMALL-SIGNAL INPUT BANDWIDTH vs.
ANALOG INPUT FREQUENCY, SINGLE-ENDEDMAX1449 toc12
ANALOG INPUT FREQUENCY (MHz)
AMPLITUDE (dB)
SPURIOUS-FREE DYNAMIC RANGE
vs. INPUT POWER (fIN = 19MHz)
MAX1449 toc13
INPUT POWER (dB FS)
SFDR (dBc)
SIGNAL-TO-NOISE RATIO vs.
INPUT POWER (fIN = 19MHz)MAX1449 toc14
INPUT POWER (dB FS)
SNR (dB)
TOTAL HARMONIC DISTORTION
vs. INPUT POWER (fIN = 19MHz)
MAX1449 toc15
INPUT POWER (dB FS)
THD (dBc)
SIGNAL-TO-NOISE + DISTORTION vs.
INPUT POWER (fIN = 19MHz)
MAX1449 toc16
INPUT POWER (dB FS)
SINAD (dB)
SPURIOUS-FREE DYNAMIC RANGE
vs. TEMPERATURE
MAX1449 toc17
TEMPERATURE (°C)
SFDR (dBc)
SIGNAL-TO-NOISE vs. TEMPERATURE
MAX1449 toc18
TEMPERATURE (°C)
SNR (dB)
Typical Operating Characteristics (continued)(VDD= +3.3V, OVDD= +2.0V, internal reference, differential input at -0.5dB FS, fCLK = 106.2345MHz, CL≈10pF, TA= +25°C,
unless otherwise noted.)
MAX1449
10-Bit, 105Msps, Single +3.3V, Low-Power
ADC with Internal ReferenceTOTAL HARMONIC DISTORTION
vs. TEMPERATURE
MAX1449 toc19
TEMPERATURE (°C)
THD (dBc)
SIGNAL-TO-NOISE + DISTORTION
vs. TEMPERATURE
MAX1449 toc20
TEMPERATURE (°C)
SINAD (dB)
INTEGRAL NONLINEARITY vs.
DIGITAL OUTPUT CODE (BEST STRAIGHT LINE)
MAX1449 toc21
DIGITAL OUTPUT CODE
INL (LSB)
DIFFERENTIAL NONLINEARITY vs.
DIGITAL OUTPUT CODE
MAX1449 toc22
DIGITAL OUTPUT CODE
DNL (LSB)
GAIN ERROR vs. TEMPERATURE,
EXTERNAL REFERENCE, VREFIN = +2.048V
MAX1449 toc23
TEMPERATURE (°C)
GAIN ERROR (LSB)
OFFSET ERROR vs. TEMPERATURE,
EXTERNAL REFERENCE, VREFIN = +2.048V
MAX1449 toc24
TEMPERATURE (°C)
OFFSET ERROR (LSB)
ANALOG SUPPLY CURRENT
vs. TEMPERATURE
MAX1449 toc26
TEMPERATURE (°C)
VDD
(mA)
DIGITAL SUPPLY CURRENT
vs. TEMPERATURE
MAX1449 toc27
TEMPERATURE (°C)
IOVDD
(mA)
ANALOG SUPPLY CURRENT
vs. ANALOG SUPPLY VOLTAGE
MAX1449 toc25
VDD (V)
IVDD
(mA)
Typical Operating Characteristics (continued)(VDD= +3.3V, OVDD= +2.0V, internal reference, differential input at -0.5dB FS, fCLK = 106.2345MHz, CL≈10pF, TA= +25°C,
unless otherwise noted.)
MAX1449
10-Bit, 105Msps, Single +3.3V, Low-Power
ADC with Internal ReferenceDIGITAL SUPPLY CURRENT
vs. TEMPERATURE
MAX1449 toc28
TEMPERATURE (°C)
IOVDD
(mA)
ANALOG POWER-DOWN CURRENT
vs. ANALOG SUPPLY VOLTAGE
MAX1449 toc29
VDD (V)
IVDD
DIGITAL POWER-DOWN CURRENT
vs. DIGITAL SUPPLY VOLTAGE
MAX1449 toc30
OVDD (V)
IOVDD
(
SFDR, SNR, THD, SINAD
vs. CLOCK FREQUENCY
MAX1449 toc31
CLOCK FREQUENCY (MHz)
SFDR, SNR, THD, SINAD (dB)
INTERNAL REFERENCE VOLTAGE
vs. ANALOG SUPPLY VOLTAGE
MAX1449 toc32
VDD (V)
REF
(V)
INTERNAL REFERENCE VOLTAGE
vs. TEMPERATURE
MAX1449 toc33
TEMPERATURE (°C)
REF
(V)
20,000
10,000
40,000
30,000
60,000
50,000
70,000
N-2NN-1N+1N+2
OUTPUT NOISE HISTOGRAM (DC INPUT)MAX1449 toc34
DIGITAL OUTPUT CODE
COUNTS
Typical Operating Characteristics (continued)(VDD= +3.3V, OVDD= +2.0V, internal reference, differential input at -0.5dB FS, fCLK = 106.2345MHz, CL≈10pF, TA= +25°C,
unless otherwise noted.)
MAX1449
10-Bit, 105Msps, Single +3.3V, Low-Power
ADC with Internal Reference
