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MAX1425EAI ,10-Bit / 20Msps ADCApplicationsPin ConfigurationMedical Ultrasound ImagingTOP VIEWCCD Pixel ProcessingIR Focal Plane A ..
MAX1426EAI ,10-Bit / 10Msps ADCApplicationsPin ConfigurationMedical Ultrasound ImagingTOP VIEWCCD Pixel ProcessingIR Focal Plane A ..
MAX1426EAI-T ,10-Bit, 10Msps ADCApplicationsPin ConfigurationMedical Ultrasound ImagingCCD Pixel Processing TOP VIEW+IR Focal Plane ..
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 ..
MAX4040EUK+ ,Single/Dual/Quad, Low-Cost, SOT23, Micropower Rail-to-Rail I/O Op AmpsELECTRICAL CHARACTERISTICS—T = +25°C (continued)A(V = +5.0V, V = 0V, V = 0V, V = V / 2, SHDN = V , ..
MAX4040EUK-T ,Single/Dual/Quad / Low-Cost / SOT23 / Micropower Rail-to-Rail I/O Op Ampsapplications.Ordering InformationThe MAX4040 is offered in a space-saving 5-pin SOT23PIN- SOT packa ..
MAX4040EUK-T ,Single/Dual/Quad / Low-Cost / SOT23 / Micropower Rail-to-Rail I/O Op Ampsapplications.Ordering InformationThe MAX4040 is offered in a space-saving 5-pin SOT23PIN- SOT packa ..
MAX4041ESA ,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 ..
MAX4041ESA+ ,Single/Dual/Quad, Low-Cost, SOT23, Micropower Rail-to-Rail I/O Op AmpsMAX4040–MAX404419-1377; Rev 1; 9/05Single/Dual/Quad, Low-Cost, SOT23, Micropower Rail-to-Rail I/O O ..
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 ..

MAX1425EAI
10-Bit / 20Msps ADC
General Description
The MAX1425 10-bit, monolithic analog-to-digital con-
verter (ADC) is capable of a 20Msps sampling rate. This
device features an internal track-and-hold (T/H) amplifier
for excellent dynamic performance; at the same time, it
minimizes the number of external components. Low
input capacitance of only 8pF minimizes input drive
requirements. A wide input bandwidth (up to 150MHz)
makes this device suitable for digital RF/IF downconvert-
er applications employing undersampling techniques.
The MAX1425 employs a differential pipelined architec-
ture with a wideband T/H amplifier to maximize through-
put while limiting power consumption to only 172mW.
The MAX1425 generates an internal +2.5V reference
that supplies three additional reference voltages
(+3.25V, +2.25V, and +1.25V). These reference volt-
ages provide a differential input range of +2V to -2V.
The analog inputs are biased internally to correct the
DC level, eliminating the need for external biasing on
AC-coupled applications.
A separate +3V digital logic supply input allows for
separation of digital and analog circuitry. The output
data is in two’s complement format. The MAX1425 is
available in the space-saving 28-pin SSOP package.
For a pin-compatible version at a lower data rate, refer
to the MAX1426 data sheet. For a higher data rate, refer
to the MAX1424 data sheet.
Applications
Medical Ultrasound Imaging
CCD Pixel Processing
IR Focal Plane Array
Radar
IF and Baseband Digitization
Set-Top Boxes
FeaturesDifferential Inputs for High Common-Mode
Noise RejectionSignal-to-Noise Ratio
61dB (at fIN = 2MHz)
59.3dB (at fIN = 10MHz)Internal +2.5V Reference 150MHz Input BandwidthWide ±2V Input RangeLow Power Consumption: 172mWSeparate Digital Supply Input for 3V Logic
CompatibilitySingle +5V Supply Operation Possible
MAX1425
10-Bit, 20Msps ADC
Functional Diagram
19-1597; Rev 0; 1/00
Pin Configuration
Ordering Information
MAX1425
10-Bit, 20Msps ADC
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(VAVDD= VCMLP= +5V, VDVDD= +3.3V, VCMLN= VAGND= VDGND= 0, internal reference, digital output load = 35pF, fCLK= 20MHz
(50% duty cycle), TA= TMINto TMAX, unless otherwise noted. 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.
AVDDto AGND........................................................-0.3V to +6V
DVDDto DGND .......................................................-0.3V to +6V
AVDDto DGND........................................................-0.3V to +6V
DGND to AGND.................................................................±0.3V
REFP, REFIN, REFN, CMLN, CMLP,
CML, INP, INN....................(VAGND- 0.3V) to (VAVDD+ 0.3V)
CLK, OE/PD, D0–D9...............(VDGND- 0.3V) to (VDVDD+ 0.3V)
Continuous Power Dissipation (TA= +70°C)
28-Pin SSOP (derated 9.5mW/°C above +70°C).........762mW
Operating Temperature Ranges
MAX1425CAI.....................................................0°C to +70°C
MAX1425EAI...................................................-40°C to +85°C
Junction Temperature.....................................................+150°C
Storage Temperature Range ............................-65°C to +150°C
Lead Temperature (soldering, 10s).................................+300°C
MAX1425
10-Bit, 20Msps ADC
ELECTRICAL CHARACTERISTICS (continued)
(VAVDD= VCMLP= +5V, VDVDD= +3.3V, VCMLN= VAGND= VDGND= 0, internal reference, digital output load = 35pF, fCLK= 20MHz
(50% duty cycle), TA= TMINto TMAX, unless otherwise noted. Typical values are at TA= +25°C.)
MAX1425
10-Bit, 20Msps ADC
ELECTRICAL CHARACTERISTICS (continued)
(VAVDD= VCMLP= +5V, VDVDD= +3.3V, VCMLN= VAGND= VDGND= 0, internal reference, digital output load = 35pF, fCLK= 20MHz
(50% duty cycle), TA= TMINto TMAX, unless otherwise noted. Typical values are at TA= +25°C.)
MAX1425
10-Bit, 20Msps ADC
ELECTRICAL CHARACTERISTICS (continued)
Note 1:Internal reference, REFIN bypassed to AGND with a 0.1µF capacitor.
Note 2:External +2.5V reference applied to REFIN.
Note 3:Internal reference disabled. VREFIN= 0, VREFP= 3.25V, VCML= 2.25V, and VREFN= 1.25V.
Note 4:Measured as the ratio of the change in midscale offset voltage for a ±5% change in VAVDDusing the internal reference.
Note 5:IMD is measured with respect to either of the fundamental tones.
Note 6:Specifies the common-mode range of the differential input signal supplied to the MAX1425.
Note 7:Defined as the input frequency at which the fundamental component of the output spectrum is attenuated by 3dB.
Note 8:VREFINis internally biased to +2.5V through a 5kΩresistor.ypical Operating Characteristics
(VAVDD= VCMLP= +5V, VDVDD= +3.3V, VCMLN= VAGND= 0, internal reference, digital output load = 35pF, fCLK= 20Msps (50%
duty cycle), for dynamic performance 0dB is full scale, TA= +25°C, unless otherwise noted.)
MAX1425
10-Bit, 20Msps ADC
Typical Operating Characteristics (continued)
(VAVDD= VCMLP= +5V, VDVDD= +3.3V, VCMLN= VAGND= 0, internal reference, digital output load = 35pF, fCLK= 20Msps (50%
duty cycle), for dynamic performance 0dB is full scale, TA= +25°C, unless otherwise noted.)
MAX1425
10-Bit, 20Msps ADC
TOTAL HARMONIC DISTORTION
vs. POWER (fIN = 9.884MHz)
MAX1425-16
INPUT (dB)
THD (dB)
EFFECTIVE NUMBER OF BITS
vs. POWER (fIN = 9.884MHz)
MAX1425-19
INPUT (dB)
ENOB (bits)
EFFECTIVE NUMBER OF BITS
vs. POWER (fIN = 2.003MHz)
MAX1425-17
INPUT (dB)
ENOB (bits)
EFFECTIVE NUMBER OF BITS
vs. POWER (fIN = 5.009MHz)
MAX1425-18
INPUT (dB)
ENOB (bits)
EFFECTIVE NUMBER OF BITS
vs. INPUT FREQUENCY
MAX1425-20
INPUT FREQUENCY (MHz)
ENOB (bits)4810
SIGNAL-TO-NOISE RATIO
vs. INPUT FREQUENCY
MAX1425-21
INPUT FREQUENCY (MHz)
SNR (dB)4810
Typical Operating Characteristics (continued)
(VAVDD= VCMLP= +5V, VDVDD= +3.3V, VCMLN= VAGND= 0, internal reference, digital output load = 35pF, fCLK= 20Msps (50%
duty cycle), for dynamic performance 0dB is full scale, TA= +25°C, unless otherwise noted.)
MAX1425
10-Bit, 20Msps ADC
Typical Operating Characteristics (continued)
(VAVDD= VCMLP= +5V, VDVDD= +3.3V, VCMLN= VAGND= 0, internal reference, digital output load = 35pF, fCLK= 20Msps (50%
duty cycle), for dynamic performance 0dB is full scale, TA= +25°C, unless otherwise noted.)

Partno	Mfg	Dc	Qty	Available	Descript
MAX1425EAI	MAXIM	N/a	2	avai	10-Bit / 20Msps ADC