MAX1108 datasheet(2/20 Pages) MAXIM

2 / 20 page

Single-Supply, Low-Power,

2-Channel, Serial 8-Bit ADCs

_______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS—MAX1108

(VDD = +2.7V to +3.6V; unipolar input mode; COM = GND, fSCLK = 500kHz, external clock mode (50% duty cycle); 10 clocks/conver-

sion cycle (50ksps); 1µF capacitor at REF, external +2.048V reference at REF; 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, COM, REF, DOUT to GND .......-0.3V to (VDD + 0.3V)

DIN, SCLK, CS to GND ............................................-0.3V to +6V

Continuous Power Dissipation (TA = +70°C)

10-pin µMAX (derate 5.6mW/°C above +70°C) ............444mW

Operating Temperature Ranges

MAX110_CUB ......................................................0°C to +70°C

MAX110_EUB ...................................................-40°C to +85°C

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

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

VDD = 2.7V to 3.6V

VDD = 5.5V (Note 2)

No missing codes over temperature

CONDITIONS

±0.15

±0.5

bits

Resolution

LSB

±0.2

INL

Relative Accuracy (Note 1)

LSB

±1

DNL

Differential Nonlinearity

UNITS

MIN

TYP

MAX

SYMBOL

PARAMETER

VDD = 5.5V (Note 2)

VDD = 2.7V to 3.6V

LSB

±0.5

Offset Error

±0.2

±1

LSB

±1

Gain Error (Note 3)

ppm/°C

±0.8

Gain Temperature Coefficient

TA = TMIN to TMAX

TA = +25°C

VDD / 2 Sampling Accuracy

SINAD

Signal-to-Noise Plus Distortion

-70

THD

Total Harmonic Distortion

(up to the 5th harmonic)

LSB

±0.5

TUE

Total Unadjusted Error

±1

LSB

±0.1

Channel-to-Channel

Offset Matching

-3dB rolloff

Unipolar input, VCOM = 0

MHz

0.8

Full-Power Bandwidth

MHz

1.5

BW-3dB

Small-Signal Bandwidth

0VREF

Input Voltage Range (Note 4)

SFDR

Spurious-Free Dynamic Range

Bipolar input, VCOM or VCH1 = VREF / 2,

referenced to COM or CH1

±VREF / 2

VCH_

CIN

Input Capacitance

On/off-leakage current,

VCOM or VCH = 0 or VDD

µA

±0.01

±1

Multiplexer Leakage Current

DC ACCURACY

DYNAMIC PERFORMANCE (10kHz sine-wave input, 2.048Vp-p, 50ksps, 500kHz external clock)

ANALOG INPUTS

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