AD7870/AD7875/AD7876

Rev. C | Page 5 of

28

Parameter

AD7875/AD78761

Units

Test Conditions/Comments

K, B

L, C

T

ANALOG INPUT

AD7875 Input Voltage Range

0 to +5

0 to +5

0 to +5

V

AD7875 Input Current

500

500

500

μA max

AD7876 Input Voltage Range

±10

±10

±10

V

AD7876 Input Current

±600

±600

±600

μA max

REFERENCE OUTPUT

REF OUT @ +25°C

2.99

2.99

2.99

V min

3.01

3.01

3.01

V max

REF OUT Tempco

±60

±35

±60

ppm/°C max

Typical tempco Is ±20 ppm/°C

Reference Load Sensitivity

(ΔREF OUT/ΔI)

−1

−1

−1

mV max

Reference load current change (0 μA to 500 μA).

Reference load should not be changed during

conversion.

LOGIC INPUTS

2.4

2.4

2.4

V min

0.8

0.8

0.8

V max

±10

±10

±10

μA max

Input Current (12/8/CLK Input Only)

±10

±10

±10

μA max

10

10

10

pF max

LOGIC OUTPUTS

4.0

4.0

4.0

V min

0.4

0.4

0.4

V max

DB11–DB0

Floating-State Leakage Current

10

10

10

μA max

Floating-State Output

Capacitance5

15

15

15

pF max

CONVERSION TIME

8

8

8

μs max

Internal Clock

6.5/9

6.5/9

6.5/9

μs min/μs

max

POWER REQUIREMENTS

As per AD7870

Refer to the power requirements in Table 1.

+125°C. For the AD7876, the temperature range for the B and C versions is from −40°C to +85°C and for the T version is−55°C to +125°C.

both positive and negative full-scale error for the AD7876.