AD7864AS-2 datasheet(3/19 Pages) AD

3 / 19 page

–3–

REV. A

AD7864

Parameter

A Version

B Version

Units

Test Conditions/Comments

LOGIC INPUTS

Input High Voltage, VINH

2.4

V min

VDD = 5 V ± 5%

Input Low Voltage, VINL

0.8

V max

VDD = 5 V ± 5%

Input Current, IIN

±10

µA max

Input Capacitance, CIN

pF max

LOGIC OUTPUTS

Output High Voltage, VOH

4.0

V min

ISOURCE = 400

µA

Output Low Voltage, VOL

0.4

V max

ISINK = 1.6 mA

DB11–DB0

High Impedance

Leakage Current

±10

µA max

Capacitance

pF max

Output Coding

AD7864-1, AD7864-3

Twos Complement

AD7864-2

Straight (Natural) Binary

CONVERSION RATE

Conversion Time

1.65

µs max

For One Channel

Track/Hold Acquisition Time2, 3

0.35

µs max

Throughput Time

130

kSPS max

For All Four Channels

POWER REQUIREMENTS

VDD

V nom

±5% for Specified Performance

IDD

µA typ) Logic Inputs = 0 V or V

Normal Mode

mA max

Standby Mode

µA max

Typically 4

µA

Power Dissipation

Normal Mode

120

mW max

Typically 90 mW

Standby Mode

100

µW max

Typically 20

µW

NOTES

1Temperature ranges are as follows: A, B Versions: –40

°C to +85°C. Note: The A Version is fully specified up to +105°C with degraded INL and DNL specifications

± 2 LSBs max.

2Performance measured through full channel (SHA and ADC).

3See Terminology.

4Sample tested @ +25

°C to ensure compliance.

Specifications subject to change without notice.

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