MAX189BCSLASHD datasheet(2/20 Pages) MAXIM

2 / 20 page

+5V, Low-Power, 12-Bit Serial ADCs

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ELECTRICAL CHARACTERISTICS

(VDD = +5V ±5%; GND = 0V; unipolar input mode; 75ksps, fCLK = 4.0MHz, external clock (50% duty cycle); MAX187—internal

reference: VREF = 4.096V, 4.7µF capacitor at REF pin, or MAX189—external reference: VREF = 4.096V applied to REF pin, 4.7µF

capacitor at REF pin; TA = TMIN to TMAX; unless otherwise noted.)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

DC ACCURACY (Note 1)

Resolution

Bits

MAX18_A

⁄2

Relative Accuracy (Note 2)

MAX18_B

±1

LSB

MAX18_C

±2

Differential Nonlinearity

DNL

No missing codes over temperature

±1

LSB

Offset Error

MAX18_A

±1

⁄2

LSB

MAX18_B/C

±3

Gain Error (Note 3)

MAX187

±3

LSB

MAX189A

±1

MAX189B/C

±3

Gain Temperature Coefficient

External reference, 4.096V

±0.8

ppm/°C

DYNAMIC SPECIFICATIONS (10kHz sine wave input, 0V to 4.096Vp-p, 75ksps)

Signal-to-Noise plus

Distortion Ratio

SINAD

Total Harmonic Distortion

(up to the 5th harmonic)

THD

-80

Spurious-Free Dynamic Range

SFDR

Small-Signal Bandwidth

Rolloff -3dB

4.5

MHz

Full-Power Bandwidth

0.8

MHz

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

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

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

Digital Inputs to GND.................................-0.3V to (VDD + 0.3V)

Digital Outputs to GND..............................-0.3V to (VDD + 0.3V)

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

REF Load Current (MAX187) .........................4.0mA Continuous

REF Short-Circuit Duration (MAX187)................................20sec

DOUT Current ..................................................................±20mA

Continuous Power Dissipation (TA = +70°C)

8-Pin Plastic DIP (derate 9.09mW/°C above +70°C) ..500mW

16-Pin Wide SO (derate 8.70mW/°C above +70°C) ...478mW

8-Pin CERDIP (derate 8.00mW/°C above +70°C) ......440mW

Operating Temperature Ranges:

MAX187_C_ _/MAX189_C_ _.............................0°C to +70°C

MAX187_E_ _/MAX189_E_ _ ..........................-40°C to +85°C

MAX187_MJA/MAX189_MJA .......................-55°C to +125°C

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

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

ABSOLUTE MAXIMUM RATINGS

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.

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