AD7904BRU View Datasheet(PDF) - Analog Devices

Part Name

Description

Manufacturer

AD7904BRU

4-Channel, 1 MSPS, 8-/10-/12-Bit ADCs with Sequencer in 16-Lead TSSOP

Analog Devices 

AD7904/AD7914/AD7924

Parameter

LOGIC OUTPUTS

Output High Voltage, VOH

Output Low Voltage, VOL

Floating-State Leakage Current

Floating-State Output Capacitance3

Output Coding

CONVERSION RATE

Conversion Time

Track-and-Hold Acquisition Time2

Throughput Rate

POWER REQUIREMENTS

VDD

VDRIVE

IDD4

Normal Mode (Static)

Normal Mode (Operational)

Auto Shutdown Mode

Full Shutdown Mode

Power Dissipation4

Normal Mode (Operational)

Auto Shutdown Mode (Static)

Full Shutdown Mode

1 Temperature range for B versions: −40°C to +85°C.

2 See the Terminology section.

3 Sample tested @ 25°C to ensure compliance.

4 See the Power vs. Throughput Rate section.

Data Sheet

B Version1

Unit

Test Conditions/Comments

VDRIVE − 0.2

V min

0.4

V max

±1

μA max

10

pF max

Straight (natural) binary

Twos complement

ISOURCE = 200 μA, AVDD = 2.7 V to 5.25 V

ISINK = 200 μA

CODING bit set to 1

CODING bit set to 0

800

ns max

16 SCLK cycles with SCLK at 20 MHz

300

ns max

Sine wave input

300

ns max

Full-scale step input

1

MSPS max See the Serial Interface section

2.7/5.25

2.7/5.25

600

2.7

2

960

0.5

0.5

V min/V max

V min/V max

μA typ

mA max

mA max

μA typ

μA max

μA max

Digital inputs = 0 V or VDRIVE

AVDD = 2.7 V to 5.25 V, SCLK on or off

AVDD = 4.75 V to 5.25 V, fSCLK = 20 MHz

AVDD = 2.7 V to 3.6 V, fSCLK = 20 MHz

fSAMPLE = 250 kSPS

Static

SCLK on or off (20 nA typ)

13.5

mW max

AVDD = 5 V, fSCLK = 20 MHz

6

mW max

AVDD = 3 V, fSCLK = 20 MHz

2.5

μW max

AVDD = 5 V

1.5

μW max

AVDD = 3 V

2.5

μW max

AVDD = 5 V

1.5

μW max

AVDD = 3 V

Rev. C | Page 4 of 32

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