AD8207WBRZ-R7 datasheet(3/16 Pages) AD

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AD8207

Rev. 0 | Page 3 of 16

SPECIFICATIONS

TOPR = −40°C to +125°C, V+ = 5 V or 3.3 V, unless otherwise noted.

Table 1.

Parameter

Min

Typ

Max

Unit

Test Conditions/Comments

GAIN

Initial

V/V

Accuracy over Temperature

−0.3

+0.3

TOPR

Gain vs. Temperature

−15

ppm/°C

TOPR

VOLTAGE OFFSET

Offset Voltage (RTI)1

±100

μV

25°C

Over Temperature (RTI)1

±400

μV

TOPR

Offset Drift

−1

μV/°C

TOPR

INPUT

Input Impedance

Differential

240

kΩ

Common Mode

126

kΩ

Input Voltage Range

−4

+65

Common mode, continuous, V+ = 5 V, TOPR

−4

+35

Common mode continuous, V+ = 3.3 V, TOPR

250

Differential2, V+ = 5 V

Common-Mode Rejection (CMRR)

TOPR, f = dc to 20 kHz

OUTPUT

Output Voltage Range

0.02

V+ − 0.05

RL = 25 kΩ, TOPR

Output Resistance

DYNAMIC RESPONSE

Small-Signal −3 dB Bandwidth

150

kHz

TOPR

Slew Rate

V/μs

NOISE

0.1 Hz to 10 Hz, (RTI)1

μV p-p

Spectral Density, 1 kHz, (RTI)1

0.6

μV/√Hz

OFFSET ADJUSTMENT

Ratiometric Accuracy3

0.497

0.503

V/V

Divider to supplies, TOPR

Accuracy (RTO)4

±3

mV/V

Voltage applied to VREF1 and VREF2 in parallel,

TOPR

Output Offset Adjustment Range

0.02

V+ − 0.05

TOPR

VREF Input Voltage Range5

0.0

V+

VREF Divider Resistor Values

100

kΩ

POWER SUPPLY

Operating Range

4.5

5.5

RANGE (Pin 4) connected to GND6

3.3

4.5

RANGE (Pin 4) connected to V+7

Quiescent Current over Temperature

2.5

VO = 0.1 V dc

Power Supply Rejection Ratio (PSRR)

TEMPERATURE RANGE

For Specified Performance

−40

+125

°C

1 RTI = referred to input.

2 Input voltage range = ±125 mV with half-scale offset. The input differential range also depends on the supply voltage. The maximum input differential range can be

calculated by V+/20.

3 The offset adjustment is ratiometric to the power supply when VREF1 and VREF2 are used as a divider between the supplies.

4 RTO = referred to output.

5 The reference pins should be driven with a low impedance voltage source to maintain the specified accuracy of the AD8207.

6 With a 4.5 V to 5.5 V supply, the RANGE pin should be tied low. In this mode, the common-mode range of the AD8207 is −4 V to +65 V.

7 With a 3.3 V to 4.5 V supply, the RANGE pin should be tied to V+. In this mode, the common-mode range of the AD8207 is −4 V to +35 V. If a 4.5 V supply is used, the

user can tie RANGE high or low depending on the common-mode range needed in the application.

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