MAX157 datasheet(2/16 Pages) MAXIM

Part #	MAX157

Description	2.7V, Low-Power, 2-Channel, 108ksps, Serial 10-Bit ADCs in 8-Pin UMAX

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Manufacturer	MAXIM [Maxim Integrated Products]

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+2.7V, Low-Power, 2-Channel,

108ksps, Serial 10-Bit ADCs in 8-Pin µMAX

2

_______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(VDD = +2.7V to +5.25V, VREF = 2.5V, 0.1µF capacitor at REF, fSCLK = 2.17MHz, 16 clocks/conversion cycle (108ksps),

CH- = GND for MAX159, TA = TMIN to 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.

VDD to GND. .............................................................-0.3V to +6V

CH0, CH1 (CH+, CH-) to GND...................-0.3V to (VDD + 0.3V)

REF to GND ................................................-0.3V to (VDD + 0.3V)

Digital Inputs to GND ...............................................-0.3V to +6V

DOUT to GND.............................................-0.3V to (VDD + 0.3V)

DOUT Sink Current ............................................................ 25mA

Continuous Power Dissipation (TA = +70°C)

µMAX (derate 4.1mW/°C above +70°C) ......................330mW

Plastic DIP (derate 9.09mW/°C above +70°C) ............727mW

CERDIP (derate 8.00mW/°C above +70°C) .................640mW

Operating Temperature Ranges

MAX157/MAX159_C_A .......................................0°C to +70°C

MAX157/MAX159_E_A ....................................-40°C to +85°C

MAX157/MAX159_MJA................................. -55°C to +125°C

Storage Temperature Range .............................-60°C to +150°C

Lead Temperature (soldering, 10sec) .............................+300°C

DC ACCURACY (Note 1)

DYNAMIC SPECIFICATIONS (fIN (sine wave) = 10kHz, VIN = 2.5Vp-p, 108ksps, external fSCLK = 2.17MHz, CH- = GND for MAX159)

PARAMETER

SYMBOL

MIN

TYP

MAX

UNITS

Gain Error (Note 3)

±2

LSB

Offset Error

±2

LSB

Differential Nonlinearity

DNL

±0.5

LSB

±1

Gain Temperature Coefficient

±0.8

ppm/°C

Channel-to-Channel Offset

Matching

±0.02

LSB

Channel-to-Channel Gain

Matching

±0.02

LSB

Resolution

RES

10

Bits

Relative Accuracy (Note 2)

INL

±0.5

LSB

Signal-to-Noise Ratio plus

Distortion

SINAD

66

dB

Total Harmonic Distortion

(including 5th-order harmonic)

THD

-70

dB

Spurious-Free Dynamic Range

SFDR

70

dB

Channel-to-Channel Crosstalk

-75

dB

Small-Signal Bandwidth

2.25

MHz

Full-Power Bandwidth

1.0

MHz

CONDITIONS

No missing codes over temperature

MAX15_B

External reference, VREF = 2.5V

fIN = 65kHz, VIN = 2.5Vp-p (Note 4)

-3dB rolloff

MAX15_A

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