265ksps, +3V, 6-/2-Channel, 12-Bit ADCs

with +2.5V Reference and Parallel Interface

_______________________________________________________________________________________

3

ELECTRICAL CHARACTERISTICS (continued)

CONDITIONS

UNITS

MIN

TYP

MAX

SYMBOL

PARAMETER

0 to 0.5mA output load

To power down the internal reference

For small adjustments

V

1.0

50mV

REF Input Voltage Range

µF

4.7

10

Capacitive Bypass at REF

µF

0.01

1

Capacitive Bypass at REFADJ

mV/mA

0.2

0.5

Load Regulation (Note 7)

V

REFADJ High Threshold

mV

±100

REFADJ Input Range

mA

15

REF Short-Circuit Current

V

2.49

2.5

2.51

REF Output Voltage

pF

12

Input Capacitance

µA

±0.01

±1

Multiplexer Leakage Current

V

0

Analog Input Voltage Range

Single-Ended and Differential

(Note 6)

µA

±0.1

±1

Three-State Leakage Current

V

Output Voltage High

V

0.4

Output Voltage Low

pF

15

Input Capacitance

µA

±0.1

±1

Input Leakage Current

mV

200

Input Hysteresis

V

0.8

Input Voltage Low

V

2.0

Input Voltage High

µA

200

300

REF Input Current

V

2.7

3.6

Analog Supply Voltage

pF

15

Three-State Output Capacitance

Internal reference

2.3

2.6

ppm/°C

±20

REF Temperature Coefficient

Shutdown mode

2

External reference

1.9

2.3

0.9

1.2

Positive Supply Current

Shutdown mode

210

µA

Power-Supply Rejection

PSR

±0.4

±0.7

mV

0.5

0.8

mA

Operating mode,

Internal reference

External reference

Standby mode

CONVERSION RATE (continued)

ANALOG INPUTS

INTERNAL REFERENCE

EXTERNAL REFERENCE AT REF

DIGITAL INPUTS AND OUTPUTS

POWER REQUIREMENTS