MAX1192 datasheet(2/28 Pages) MAXIM

2 / 28 page

Ultra-Low-Power, 22Msps, Dual 8-Bit ADC

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ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(VDD = 3.0V, OVDD = 1.8V, VREFIN = VDD (internal reference), CL

≈ 10pF at digital outputs, fCLK = 22MHz, CREFP = CREFN = CCOM =

0.33µF, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)

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, OVDD to GND ...............................................-0.3V to +3.6V

OGND to GND.......................................................-0.3V to +0.3V

INA+, INA-, INB+, INB- to GND .................-0.3V to (VDD + 0.3V)

CLK, REFIN, REFP, REFN, COM to GND ...-0.3V to (VDD + 0.3V)

PD0, PD1 to OGND .................................-0.3V to (OVDD + 0.3V)

Digital Outputs to OGND .........................-0.3V to (OVDD + 0.3V)

Continuous Power Dissipation (TA = +70°C)

28-Pin Thin QFN (derated 20.8mW/°C above +70°C) ..1667mW

Operating Temperature Range ...........................-40°C to +85°C

Junction Temperature ......................................................+150°C

Storage Temperature Range ............................-65°C to +150°C

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

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

DC ACCURACY

Resolution

Bits

Integral Nonlinearity

INL

±0.15

±1.00

LSB

Differential Nonlinearity

DNL

No missing codes over temperature

±0.14

±1.00

LSB

≥ +25°C

±4

Offset Error

< +25°C

±6

%FS

Gain Error

Excludes REFP - REFN error

±2

%FS

DC Gain Matching

±0.01

±0.2

Gain Temperature Coefficient

±30

ppm/°C

Offset (VDD ±5%)

±0.02

Power-Supply Rejection

Gain (VDD ±5%)

±0.05

LSB

ANALOG INPUT

Differential Input Voltage Range

VDIFF

Differential or single-ended inputs

±0.512

Common-Mode Input Voltage

Range

VCOM

VDD / 2V

Input Resistance

RIN

Switched capacitor load

245

Ω

Input Capacitance

CIN

5pF

CONVERSION RATE

Clock Frequency Range

fCLK

7.5

MHz

Channel A

5.0

Data Latency

Channel B

5.5

Clock

cycles

DYNAMIC CHARACTERISTICS (differential inputs, 4096-point FFT)

fIN = 1.875MHz

48.6

fIN = 5.5MHz

48.6

Signal-to-Noise Ratio

(Note 2)

SNR

fIN = 11MHz

48.6

fIN = 1.875MHz

48.7

fIN = 5.5MHz

48.6

Signal-to-Noise and Distortion

(Note 2)

SINAD

fIN = 11MHz

48.6

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