16-Bit, 135ksps, Single-Supply ADCs with

Bipolar Analog Input Range

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3

ELECTRICAL CHARACTERISTICS (continued)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Normal operation

-1.8

+0.4

MAX1179,

-5V

Shutdown mode

-1.8

+1.8

MAX1187,

0

Normal/shutdown

mode

-0.1

+2.0

Normal operation

-1.8

+1.2

Input Current

MAX1189,

-10V

Shutdown mode

-1.8

+1.8

mA

operating mode

1

1.4

Input Current Step at Power-Up

operating mode

0.5

0.7

mA

Input Capacitance

10

pF

INTERNAL REFERENCE

REF Output Voltage

4.056

4.096

4.136

V

REF Output Tempco

±35

ppm/°C

REF Short-Circuit Current

±10

mA

EXTERNAL REFERENCE

REF and REFADJ Input Voltage

Range

3.8

4.2

V

REFADJ Buffer Disable Threshold

0.4

0.1

V

60

100

REF Input Current

Shutdown mode (Note 1)

±0.1

±10

µA

REFADJ Input Current

16

µA

DIGITAL INPUTS/OUTPUTS

Output High Voltage

0.4

V

Output Low Voltage

0.4

V

Input High Voltage

0.7

×

V

Input Low Voltage

0.3

×

V

Input Leakage Current

-1

+1

µA

Input Hysteresis

0.2

V

Input Capacitance

15

pF

Three-State Output Leakage

±10

µA

Three-State Output Capacitance

15

pF