AD7994(RevPrF) 查看數據表（PDF） - Analog Devices

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AD7994
(Rev.:RevPrF)

4-Channel, 12-/10-Bit ADCs with I2C Compatible Interface in 16-Lead TSSOP

Analog Devices 

PRELIMINARY TECHNICAL DATA

AD7994–SPECIFICATIONS1 (VDD = +2.7 V to +5.5 V, unless otherwise noted ; REFIN = 2.5 V; fSCL = 3.4 MHz unless

otherwise noted; TA = TMIN to TMAX, unless otherwise noted.)

Parameter

CONVERSION RATE

Conversion Time

Track/Hold Acquisition Time

Throughput Rate

POWER REQUIREMENTS

VDD

IDD

Peak Current

Power Down Mode , Interface Inactive

Interface Active

Operating, Interface Inactive

Interface Active

B Version1

2

TBD

TBD

3.4

13

79

2.7/5.5 V

TBD

0.2/0.6

0.05/0.2

0.3/0.8

0.06/0.15

0.3/0.6

0.15/0.35

0.6/1.4

Units

µs typ

ns max

ns max

KSPS max

KSPS max

KSPS max

min/max

µA max

µA max

mA max

mA max

mA max

mA max

mA max

mA max

Test Conditions/Comments

See Interface Section

Full-Scale step input

Sine wave input <= 30 KHz

Standard mode SCL = 100 kHz

Fast Mode SCL = 400 kHz

High-Speed Mode SCL = 3.4 MHz

Digital Inputs = 0 V or VDD

Peak Current during conversion

VDD = 3 V/5 V.

VDD = 3 V/5 V 400 kHz SCL.

VDD = 3 V/5 V 3.4 MHz SCL.

VDD = 3 V/5 V 400 kHz SCL.

VDD = 3 V/5 V 3.4 MHz SCL.

VDD = 3 V/5 V 400 kHz SCL.

VDD = 3 V/5 V 3.4 MHz SCL.

NOTES

1Temperature ranges as follows: B Version: –40°C to +85°C.

2See Terminology.

3Sample tested @ +25°C to ensure compliance.

4See POWER VERSUS THROUGHPUT RATE section.

Specifications subject to change without notice.

REV. PrF

–3–

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