MAX1444EHJ Fast Delivery |IC PHOENIX CO.,LIMITED

MAX1444EHJ ,10-Bit / 40Msps / 3.0V / Low-Power ADC with Internal ReferenceELECTRICAL CHARACTERISTICS(V = 3V; OV = 2.7V; 0.1µF and 1µF capacitors from REFP, REFN, and COM to ..
MAX1446EHJ+ ,10-Bit, 60Msps, 3.0V, Low-Power ADC with Internal ReferenceELECTRICAL CHARACTERISTICS(V = 3.0V, OV = 2.7V; 0.1µF and 1.0µF capacitors from REFP, REFN, and COM ..
MAX1448EHJ ,10-Bit, 80Msps, Single 3.0V, Low-Power ADC with Internal ReferenceELECTRICAL CHARACTERISTICS(V = 3.0V, OV = 2V, 0.1µF and 1µF capacitors from REFP, REFN, and COM to ..
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 ..
MAX4041EUA ,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 ..
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 ..

MAX1444EHJ
10-Bit / 40Msps / 3.0V / Low-Power ADC with Internal Reference
General Description
The MAX1444 10-bit, 3V analog-to-digital converter
(ADC) features a pipelined 10-stage ADC architecture
with fully differential wideband track-and-hold (T/H)
input and digital error correction incorporating a fully
differential signal path. This ADC is optimized for low-
power, high dynamic performance applications in
imaging and digital communications. The MAX1444
operates from a single 2.7V to 3.6V supply, consuming
only 57mW while delivering a 59.5dB signal-to-noise
ratio (SNR) at a 20MHz input frequency. The fully differ-
ential input stage has a 400MHz -3dB bandwidth and
may be operated with single-ended inputs. In addition
to low operating power, the MAX1444 features a 5µA
power-down mode for idle periods.
An internal 2.048V precision bandgap reference is
used to set the ADC full-scale range. A flexible refer-
ence structure allows the user to supply a buffered,
direct, or externally derived reference for applications
requiring increased accuracy or a different input volt-
age range.
Higher speed, pin-compatible versions of the MAX1444
are also available. Please refer to the MAX1446 data
sheet (60Msps) and the MAX1448 data sheet
(80Msps).
The MAX1444 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 5x5mm 32-pin TQFP package and is
specified over the extended industrial (-40°C to +85°C)
temperature range.
________________________Applications
Ultrasound Imaging
CCD Imaging
Baseband and IF Digitization
Digital Set-Top Boxes
Video Digitizing Applications
FeaturesSingle 3.0V OperationExcellent Dynamic Performance
59.5dB SNR at fIN= 20MHz
74dBc SFDR at fIN= 20MHz Low Power
19mA (Normal Operation)
5µA (Shutdown Mode)Fully Differential Analog InputWide 2Vp-pDifferential Input Voltage Range400MHz -3dB Input BandwidthOn-Chip 2.048V Precision Bandgap ReferenceCMOS-Compatible Three-State Outputs32-Pin TQFP PackageEvaluation Kit Available
MAX1444
10-Bit, 40Msps, 3.0V, Low-Power
ADC with Internal Reference
Pin Configuration
19-1745; Rev 1; 11/03
Ordering Information
Functional Diagram appears at end of data sheet.
MAX1444
10-Bit, 40Msps, 3.0V, Low-Power
ADC with Internal Reference
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(VDD= 3V; OVDD= 2.7V; 0.1µF and 1µF 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= 40MHz; TA= TMIN
to TMAX, unless otherwise noted. ≥+25°C guaranteed by production test, < +25°C guaranteed by design and characterization; typi-
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 18.7mW/°C above +70°C)......1495.3mW
Operating Temperature Range...........................-40°C to +85°C
Storage Temperature Range.............................-60°C to +150°C
Lead Temperature (soldering, 10s).................................+300°C
MAX1444
10-Bit, 40Msps, 3.0V, Low-Power
ADC with Internal Reference
ELECTRICAL CHARACTERISTICS (continued)
(VDD= 3V; OVDD= 2.7V; 0.1µF and 1µF 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= 40MHz; TA= TMIN
MAX1444
10-Bit, 40Msps, 3.0V, Low-Power
ADC with Internal Reference
ELECTRICAL CHARACTERISTICS (continued)
(VDD= 3V; OVDD= 2.7V; 0.1µF and 1µF 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= 40MHz; TA= TMIN
to TMAX, unless otherwise noted. ≥+25°C guaranteed by production test, < +25°C guaranteed by design and characterization; typi-
cal values are at TA= +25°C.)
MAX1444
10-Bit, 40Msps, 3.0V, Low-Power
ADC with Internal Reference
ELECTRICAL CHARACTERISTICS (continued)
(VDD= 3V; OVDD= 2.7V; 0.1µF and 1µF 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= 40MHz; TA= TMIN
to TMAX, unless otherwise noted. ≥+25°C guaranteed by production test, < +25°C guaranteed by design and characterization; typi-
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:REFIN is driven externally. REFP, COM, and REFN are left floating while powered down.
MAX1444
10-Bit, 40Msps, 3.0V, Low-Power
ADC with Internal Reference
MAX1444-01
ANALOG INPUT FREQUENCY (MHz)
AMPLITUDE (dB)
FFT PLOT (fIN = 7.51MHz,
8192-POINT FFT, DIFFERENTIAL INPUT)
MAX1444-02
ANALOG INPUT FREQUENCY (MHz)
AMPLITUDE (dB)
FFT PLOT (fIN = 19.91MHz,
8192-POINT FFT, DIFFERENTIAL INPUT)
MAX1444-03
FFT PLOT (fIN = 47MHz,
8192-POINT FFT, DIFFERENTIAL INPUT)
ANALOG INPUT FREQUENCY (MHz)
AMPLITUDE (dB)
MAX1444-04
ANALOG INPUT FREQUENCY (MHz)
AMPLITUDE (dB)
FFT PLOT (fIN = 7.51MHz,
8192-POINT FFT, SINGLE-ENDED INPUT)
MAX1444-05
ANALOG INPUT FREQUENCY (MHz)
AMPLITUDE (dB)
FFT PLOT (fIN = 19.91MHz,
8192-POINT FFT, SINGLE-ENDED INPUT)1001000
FULL-POWER INPUT BANDWIDTH vs.
ANALOG INPUT FREQUENCY (SINGLE ENDED)
MAX1444-06
ANALOG INPUT FREQUENCY (MHz)
GAIN (dB)1001000
SMALL-SIGNAL INPUT BANDWIDTH
vs. ANALOG INPUT FREQUENCY (SINGLE ENDED)
MAX1444-07
ANALOG INPUT FREQUENCY (MHz)
GAIN (dB)
MAX1444-08
ANALOG INPUT FREQUENCY (MHz)
AMPLITUDE (dB)
TWO-TONE INTERMODULATION
8192-POINT IMD (DIFFERENTIAL INPUT)10100
SPURIOUS-FREE DYNAMIC RANGE
vs. ANALOG INPUT FREQUENCY
MAX1444-09
ANALOG INPUT FREQUENCY (MHz)
SFDR (dBc)
Typical Operating Characteristics
(VDD= 3.0V, OVDD= 2.7V, internal reference, differential input at -0.5dB FS, fCLK = 40MHz, CL≈10pF, TA= +25°C, unless other-
wise noted.)
MAX1444
10-Bit, 40Msps, 3.0V, Low-Power
ADC with Internal Reference10100
MAX1444-10
ANALOG INPUT FREQUENCY (MHz)
SNR (dB)58
SIGNAL-TO-NOISE RATIO vs.
ANALOG INPUT FREQUENCY
MAX1444-11
ANALOG INPUT FREQUENCY (MHz)
THD (dBc)
TOTAL HARMONIC DISTORTION vs.
ANALOG INPUT FREQUENCY10100
MAX1444-12
ANALOG INPUT FREQUENCY (MHz)
SINAD (dB)53
SIGNAL-TO-NOISE PLUS DISTORTION vs.
ANALOG INPUT FREQUENCY
SPURIOUS-FREE DYNAMIC RANGE
vs. ANALOG INPUT POWER
MAX1444-13
ANALOG INPUT POWER (dB FS)
SFDR (dBc)
SIGNAL-TO-NOISE RATIO
vs. ANALOG INPUT POWER
MAX1444-14
ANALOG INPUT POWER (dB FS)
SNR (dB)
TOTAL HARMONIC DISTORTION
vs. ANALOG INPUT POWER
MAX1444-15
ANALOG INPUT POWER (dB FS)
THD (dBc)
SIGNAL-TO-NOISE RATIO
vs. TEMPERATURE
MAX1444-18
TEMPERATURE (°C)
SNR (dB)
Typical Operating Characteristics (continued)
(VDD= 3.0V, OVDD= 2.7V, internal reference, differential input at -0.5dB FS, fCLK = 40MHz, CL≈10pF, TA= +25°C, unless other-
wise noted.)
MAX1444
10-Bit, 40Msps, 3.0V, Low-Power
ADC with Internal Reference
SIGNAL-TO-NOISE PLUS DISTORTION
vs. TEMPERATURE
MAX1444-20
TEMPERATURE (°C)
SINAD (dB)
INTEGRAL NONLINEARITY vs.
DIGITAL OUTPUT CODE (BEST STRAIGHT LINE)
MAX1444-21
DIGITAL OUTPUT CODE
INL (LSB)40020060080010001200
MAX1444-22
DIGITAL OUTPUT CODE
DNL (LSB)
DIFFERENTIAL NONLINEARITY
vs. DIGITAL OUTPUT CODE
MAX1444-23
TEMPERATURE (°C)
GAIN ERROR (LSB)
GAIN ERROR vs. TEMPERATURE,
EXTERNAL REFERENCE (VREFIN = 2.048V)
MAX1444-24
TEMPERATURE (°C)
OFFSET ERROR (LSB)
OFFSET ERROR vs. TEMPERATURE,
EXTERNAL REFERENCE (VREFIN = 2.048V)
Typical Operating Characteristics (continued)
(VDD= 3.0V, OVDD= 2.7V, internal reference, differential input at -0.5dB FS, fCLK = 40MHz, CL≈10pF, TA= +25°C, unless other-
wise noted.)
MAX1444
10-Bit, 40Msps, 3.0V, Low-Power
ADC with Internal Reference
MAX1444-28
TEMPERATURE (°C)
IOVDD
(mA)
DIGITAL SUPPLY CURRENT
vs. TEMPERATURE
ANALOG POWER-DOWN CURRENT
vs. ANALOG POWER SUPPLY
MAX1444-29
VDD (V)
IVDD
DIGITAL POWER-DOWN CURRENT
vs. DIGITAL POWER SUPPLY
MAX1444-30
OVDD (V)
IOVDD3834424650
MAX1444-31
fCLK (MHz)
SNR/SINAD, THD/SFDR (dB, dBc)
SNR/SINAD, THD/SFDR
vs. CLOCK FREQUENCY (OVER-CLOCKING)2.02
INTERNAL REFERENCE VOLTAGE
vs. ANALOG SUPPLY VOLTAGE
MAX1444-32
VDD (V)
REFOUT
(V)
MAX1444-33
TEMPERATURE (°C)
REFOUT
(V)
INTERNAL REFERENCE VOLTAGE
vs. TEMPERATURE
N-2N-1NN+1N+2
OUTPUT NOISE HISTOGRAM (DC INPUT)
MAX1444-34
DIGITAL OUTPUT CODE
COUNTS
Typical Operating Characteristics (continued)
(VDD= 3.0V, OVDD= 2.7V, internal reference, differential input at -0.5dB FS, fCLK = 40MHz, CL≈10pF, TA= +25°C, unless other-
wise noted.)
MAX1444
10-Bit, 40Msps, 3.0V, Low-Power
ADC with Internal Reference

Partno	Mfg	Dc	Qty	Available	Descript
MAX1444EHJ	MAXIM	N/a	4	avai	10-Bit / 40Msps / 3.0V / Low-Power ADC with Internal Reference