AD7933BRU datasheet(4/32 Pages) AD

부품명	AD7933BRU

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

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AD7933/AD7934

Preliminary Technical Data

Parameter

B Version1

Unit

Test Conditions/Comments

VREF Output Impedance

10

Ω typ

VREF Input Capacitance

15

pF typ

When in track

25

pF typ

When in hold

LOGIC INPUTS

Input High Voltage, VINH

2.4

V min

Input Low Voltage, VINL

0.8

V max

Input Current, IIN

±1

µA max

Typically 10 nA, VIN = 0 V or VDRIVE

Input Capacitance, CIN5

10

pF max

LOGIC OUTPUTS

Output High Voltage, VOH

2.4

V min

ISOURCE = 200 µA;

Output Low Voltage, VOL

0.4

V max

ISINK = 200 µA

Floating-State Leakage Current

±10

µA max

Floating-State Output Capacitance5

10

pF max

Output Coding

CODING bit = 0

Straight (Natural) Binary

Twos Complement

CODING bit = 1

CONVERSION RATE

Conversion Time

t2 + 13 tclk + t20

ns

Track-and-Hold Acquisition Time

135

ns max

Full scale step input

Throughput Rate

1.5

MSPS max

POWER REQUIREMENTS

VDD

2.7/5.25

V min/max

VDRIVE

2.7 /5.25

V min/max

IDD7

Digital I/Ps = 0 V or VDRIVE

Normal Mode(Static)

0.5

mA typ

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

Normal Mode (Operational)

3.2

mA max

VDD = 4.75 V to 5.25 V

2.6

mA max

VDD = 2.7 V to 3.6 V

Auto StandBy Mode

1.55

mA typ

FSAMPLE = 250 kSPS

90

µA max

(Static)

Auto Shutdown Mode

1

mA typ

FSAMPLE = 250 kSPS

1

µA max

(Static)

Full Shutdown Mode

1

µA max

SCLK on or off

Power Dissipation

Normal Mode (Operational)

16

mW max

VDD = 5 V

8

mW max

VDD = 3 V

Auto Standby Mode (Static)

450

µW max

VDD = 5 V

270

µW max

VDD = 3 V

Auto Shutdown Mode (Static)

5

µW max

VDD = 5 V

3

µW max

VDD = 3 V

Full Shutdown Mode

5

µW max

VDD = 5 V

3

µW max

VDD = 3 V

1 Temperature range 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 conversion 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 differential mode and 0.1 V to VDD in pseudo-differential and single-ended modes.

7 Measured with a midscale dc input.

Rev. PrG | Page 4 of 32

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