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AD7933
(Rev.:RevPrG)

4-Channel, 1.5 MSPS, 12-Bit and 10-Bit Parallel ADCs with a Sequencer

Analog Devices 

AD7933/AD7934

Preliminary Technical Data

Parameter

VREF Output Impedance

VREF Input Capacitance

LOGIC INPUTS

Input High Voltage, VINH

Input Low Voltage, VINL

Input Current, IIN

Input Capacitance, CIN5

LOGIC OUTPUTS

Output High Voltage, VOH

Output Low Voltage, VOL

Floating-State Leakage Current

Floating-State Output Capacitance5

Output Coding

CONVERSION RATE

Conversion Time

Track-and-Hold Acquisition Time

Throughput Rate

POWER REQUIREMENTS

VDD

VDRIVE

IDD7

Normal Mode(Static)

Normal Mode (Operational)

Auto StandBy Mode

Auto Shutdown Mode

Full Shutdown Mode

Power Dissipation

Normal Mode (Operational)

Auto Standby Mode (Static)

Auto Shutdown Mode (Static)

Full Shutdown Mode

B Version1

10

15

25

Unit

Ω typ

pF typ

pF typ

Test Conditions/Comments

When in track-and-hold

When in track-and-hold

2.4

V min

0.8

V max

±1

µA max

Typically 10 nA, VIN = 0 V or VDRIVE

10

pF max

2.4

V min

0.4

V max

±10

µA max

10

pF max

Straight (Natural) Binary

Twos Complement

ISOURCE = 200 µA;

ISINK = 200 µA

CODING bit = 0

CODING bit = 1

t2 + 13 tclk + t20

135

1.5

ns

ns max

MSPS max

Full scale step input

2.7/5.25

2.7 /5.25

0.5

3.2

2.6

1.55

90

1

1

1

V min/max

V min/max

mA typ

mA max

mA max

mA typ

µA max

mA typ

µA max

µA max

Digital I/Ps = 0 V or VDRIVE

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

VDD = 4.75 V to 5.25 V

VDD = 2.7 V to 3.6 V

FSAMPLE = 250 kSPS

(Static)

FSAMPLE = 250 kSPS

(Static)

SCLK on or off

16

mW max VDD = 5 V

8

mW max VDD = 3 V

450

µW max

VDD = 5 V

270

µW max

VDD = 3 V

5

µW max

VDD = 5 V

3

µW max

VDD = 3 V

5

µW max

VDD = 5 V

3

µW max

VDD = 3 V

1 Temperature ranges is as follows: B Versions: −40°C to +85°C.

2 See Terminology section.

3 Analog inputs with slew rates exceeding 27 V/µs (full-scale input sine wave > 3.5 MHz) within the acquisition time may cause an incorrect result to be returned by the

converter.

4 For full common mode range see

5 Sample tested during initial release to ensure compliance.

6 This device is operational with an external reference in the range 0.1 V to 3.5 V in differential mode and 0.1 V to VDD in pseudo-differential and single-ended modes.

See the Reference Section for more information.

7 Measured with a midscale dc input.

Rev. PrG | Page 6 of 32

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