AD9803 datasheet(2/19 Pages) AD

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AD9803–SPECIFICATIONS

–2–

GENERAL SPECIFICATIONS

Parameter

Min

Typ

Max

Units

TEMPERATURE RANGE

Operating

–20

°C

Storage

–65

150

°C

POWER SUPPLY VOLTAGE

(For Functional Operation)

Analog

2.7

3.0

3.6

Digital

2.7

3.0

3.6

Digital Driver

2.7

3.0

3.6

POWER CONSUMPTION

(Power-Down Modes Selected Through Serial I/F)

Normal Operation (D-Reg 00)

(Specified Under Each Mode of Operation)

High Speed AUX-MODE (D-Reg 01)

(Specified Under AUX-MODE)

Reference Standby (D-Reg 10 or STBY Pin Hi)

Shutdown Mode (D-Reg 11)

MAXIMUM CLOCK RATE

(Specified Under Each Mode of Operation)

S/H AMPLIFIER

Gain

0dB

Clock Rate

MHz

A/D CONVERTER

Resolution

Bits

Differential Nonlinearity

0–255 Code

±0.5

±0.8

LSBs

256–1023 Code

±0.5

±1.0

LSBs

No Missing Codes

GUARANTEED

Full-Scale Input Range

1.0

V p-p

Clock Rate

0.01

MHz

REFERENCE

Reference Top Voltage

1.75

Reference Bottom Voltage

1.25

Specifications subject to change without notice.

DIGITAL SPECIFICATIONS

Parameter

Symbol

Min

Typ

Max

Units

LOGIC INPUTS

High Level Input Voltage

VIH

2.1

Low Level Input Voltage

VIL

0.6

High Level Input Current

IIH

µA

Low Level Input Current

IIL

µA

Input Capacitance

CIN

LOGIC OUTPUTS

High Level Output Voltage

VOH

2.1

Low Level Output Voltage

VOL

0.6

High Level Output Current

IOH

µA

Low Level Output Current

IOL

µA

SERIAL INTERFACE TIMING (Figure 35)

Maximum SCLK Frequency

MHz

SDATA to SCLK Setup

tDS

SCLK to SDATA Hold

tDH

SLOAD to SCLK Setup

tLS

SCLK to SLOAD Hold

tLH

Specifications subject to change without notice.

(TMIN to TMAX, ACVDD = ADVDD = DVDD = +2.8 V, fADCCLK = 18 MHz unless otherwise noted)

(TMIN to TMAX, DRVDD = +2.7 V, CL = 20 pF unless otherwise noted)

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