AD9708 datasheet(2/16 Pages) AD

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DC SPECIFICATIONS

Parameter

Min

Typ

Max

Units

RESOLUTION

Bits

MONOTONICITY

GUARANTEED OVER SPECIFIED TEMPERATURE RANGE

DC ACCURACY

Integral Linearity Error (INL)

–1/2

±1/4

+1/2

LSB

Differential Nonlinearity (DNL)

–1/2

±1/4

+1/2

LSB

ANALOG OUTPUT

Offset Error

–0.025

+0.025

% of FSR

Gain Error (Without Internal Reference)

–10

±2

+10

% of FSR

Gain Error (With Internal Reference)

–10

±1

+10

% of FSR

Full-Scale Output Current2

2.0

20.0

Output Compliance Range

–1.0

1.25

Output Resistance

100

Ω

Output Capacitance

REFERENCE OUTPUT

Reference Voltage

1.08

1.20

1.32

Reference Output Current3

100

REFERENCE INPUT

Input Compliance Range

0.1

1.25

Reference Input Resistance

Ω

Small Signal Bandwidth (w/o CCOMP1)

1.4

MHz

TEMPERATURE COEFFICIENTS

Offset Drift

ppm of FSR/

°C

Gain Drift (Without Internal Reference)

±50

ppm of FSR/

°C

Gain Drift (With Internal Reference)

±100

ppm of FSR/

°C

Reference Voltage Drift

±50

ppm/

°C

POWER SUPPLY

Supply Voltages

AVDD5

2.7

5.0

5.5

DVDD

2.7

5.0

5.5

Analog Supply Current (IAVDD)25

Digital Supply Current (IDVDD)

Supply Current Sleep Mode (IAVDD)

8.5

Power Dissipation6 (5 V, IOUTFS = 20 mA)

140

175

Power Dissipation7 (5 V, IOUTFS = 20 mA)

190

Power Dissipation7 (3 V, IOUTFS = 2 mA)

Power Supply Rejection Ratio—AVDD

–0.4

+0.4

% of FSR/V

Power Supply Rejection Ratio—DVDD

–0.025

+0.025

% of FSR/V

OPERATING RANGE

–40

+85

°C

NOTES

1Measured at IOUTA, driving a virtual ground.

2Nominal full-scale current, I

OUTFS, is 32 × the I REF current.

3Use an external buffer amplifier to drive any external load.

4Reference bandwidth is a function of external cap at COMP1 pin.

5For operation below 3 V, it is recommended that the output current be reduced to 12 mA or less to maintain optimum performance.

6Measured at f

CLOCK = 50 MSPS and fOUT = 1.0 MHz.

7Measured as unbuffered voltage output into 50

Ω R

LOAD at IOUTA and IOUTB, fCLOCK = 100 MSPS and fOUT = 40 MHz.

Specifications subject to change without notice.

(TMIN to TMAX , AVDD = +5 V, DVDD = +5 V, IOUTFS = 20 mA, unless otherwise noted)

–2–

REV. B

AD9708–SPECIFICATIONS

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