AD1868 datasheet(2/12 Pages) AD

2 / 12 page

REV. A

–2–

AD1868–SPECIFICATIONS(typical at T

A = +25 C and +5 V supplies unless otherwise noted)

Min

Typ

Max

Units

RESOLUTION

Bit

DIGITAL INPUTS

VIH

2.4

VIL

0.8

IIH, VIH = VL

1.0

µA

IIL, VIL = DGND

1.0

µA

Maximum Clock Input Frequency

13.5

MHz

ACCURACY

Gain Error

±1

% of FSR

Gain Matching

±1

% of FSR

Midscale Error

±15

Midscale Error Matching

±10

Gain Linearity Error

±3dB

DRIFT (0

°C to +70°C)

Gain Drift

±100

ppm/

°C

Midscale Drift

±100

µV/°C

TOTAL HARMONIC DISTORTION + NOISE

0 dB, 990.5 Hz

AD1868N

0.004

0.008

AD1868N-J

0.004

0.006

–20 dB, 990.5 Hz

AD1868N

0.020

0.08

AD1868N-J

0.020

0.08

–60 dB, 990.5 Hz

AD1868N

2.0

5.0

AD1868N-J

2.0

5.0

CHANNEL SEPARATION 1 kHz, 0 dB

108

NIL*

SIGNAL-TO-NOISE RATIO (with A-Weight Filter)

97.5

D-RANGE (with A-Weight Filter)

OUTPUT

Voltage Output Pins (VOL, VOR)

Output Range (

±3%)

±1V

Output Impedance

0.1

Ω

Load Current

±1mA

Bias Voltage Pins (VBL, VBR)

Output Voltage

+2.5

Output Impedance

350

Ω

POWER SUPPLY

Specification, VL and VS

4.75

5.25

Operation, VL and VS

3.5

5.25

+I, VL and VS = 5 V

POWER DISSIPATION

TEMPERATURE RANGE

Specification

°C

Operation

–35

°C

Storage

–60

100

°C

*Above 115 dB.

Specifications subject to change without notice.

WARNING!

ESD SENSITIVE DEVICE

CAUTION

ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily

accumulate on the human body and test equipment and can discharge without detection.

Although the AD1868 features proprietary ESD protection circuitry, permanent damage may

occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD

precautions are recommended to avoid performance degradation or loss of functionality.

ABSOLUTE MAXIMUM RATINGS*

VL to DGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 V to 6 V

VS to AGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 V to 6 V

AGND to DGND . . . . . . . . . . . . . . . . . . . . . . . . . . . .

±0.3 V

Digital Inputs to DGND . . . . . . . . . . . . . . . . . . . . . –0.3 to VL

Soldering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +300

°C, 10 sec

*Stresses greater than those listed under “Absolute Maximum Ratings” may cause

permanent damage to the device. This is a stress rating only and functional

operation of the device at these or any other conditions above those indicated in the

operational section of this specification is not implied. Exposure to absolute

maximum rating conditions for extended periods may affect device reliability.

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