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Rainbow Electronics MAX1081 User Manual

Page 2

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MAX1080/MAX1081

300ksps/400ksps, Single-Supply, Low-Power,
8-Channel, Serial 10-Bit ADCs with Internal Reference

2

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ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS—MAX1080

(V

DD1

= V

DD2

= +4.5V to +5.5V, COM = GND, f

SCLK

= 6.4MHz, 50% duty cycle, 16 clocks/conversion cycle (400ksps), external

+2.5V at REF, REFADJ = V

DD1

, T

A

= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at T

A

= +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.

V

DD_

to GND .............................................................. -0.3V to 6V

V

DD1

to V

DD2

......................................................... -0.3V to 0.3V

CH0–CH7, COM to GND.......................... -0.3V to (V

DD1

+ 0.3V)

REF, REFADJ to GND .............................. -0.3V to (V

DD1

+ 0.3V)

Digital Inputs to GND................................................. -0.3V to 6V
Digital Outputs to GND ............................ -0.3V to (V

DD2

+ 0.3V)

Digital Output Sink Current .................................................25mA

Continuous Power Dissipation (T

A

= +70°C)

20-Pin TSSOP (derate 7.0mW/°C above +70°C) ........ 559mW

Operating Temperature Ranges

MAX108_ _CUP ................................................. 0°C to +70°C
MAX108_ _EUP............................................... -40°C to +85°C

Storage Temperature Range ............................ -60°C to +150°C
Lead Temperature (soldering, 10s) ................................ +300°C

MAX1080A

SINAD > 58dB

-3dB point

f

IN

= 200kHz, V

IN

= 2.5Vp-p

f

IN1

= 99kHz, f

IN2

=102kHz

MAX1080B

No missing codes over temperature

Up to the 5th harmonic

CONDITIONS

MHz

0.5

6.4

f

SCLK

Serial Clock Frequency

ps

<50

Aperture Jitter

ns

10

Aperture Delay

ns

468

t

ACQ

Track/Hold Acquisition Time

µs

2.5

t

CONV

Conversion Time (Note 5)

kHz

350

Full-Linear Bandwidth

MHz

6

Full-Power Bandwidth

dB

-78

Channel-to-Channel Crosstalk
(Note 4)

dB

76

IMD

Intermodulation Distortion

dB

70

SFDR

Spurious-Free Dynamic Range

dB

-70

THD

Total Harmonic Distortion

LSB

±0.5

INL

Relative Accuracy (Note 2)

Bits

10

Resolution

dB

60

SINAD

Signal-to-Noise plus Distortion
Ratio

LSB

±0.1

Channel-to-Channel Offset-Error
Matching

ppm/°C

±0.8

Gain-Error Temperature
Coefficient

±1.0

LSB

±1.0

DNL

Differential Nonlinearity

LSB

±3.0

Offset Error

LSB

±3.0

Gain Error (Note 3)

UNITS

MIN

TYP

MAX

SYMBOL

PARAMETER

%

40

60

Duty Cycle

DYNAMIC SPECIFICATIONS (100kHz sine-wave input, 2.5Vp-p, 400ksps, 6.4MHz clock, bipolar input mode)

DC ACCURACY (Note 1)

CONVERSION RATE