Data Sheet

AD736

Rev. I | Page 3 of 20

SPECIFICATIONS

At 25°C ± 5 V supplies, ac-coupled with 1 kHz sine wave input applied, unless otherwise noted. Specifications in bold are tested on all

production units at final electrical test. Results from those tests are used to calculate outgoing quality levels.

Table 1.

AD736J/AD736A

AD736K/AD736B

Parameter

Conditions

Min

Typ

Max

Min

Typ

Max

Unit

TRANSFER FUNCTION

VOUT = √Avg (VIN2)

CONVERSION ACCURACY

1 kHz sine wave

Total Error, Internal Trim1

Using CC

All Grades

0 mV rms to 200 mV rms

0.3/0.3

0.5/0.5

0.2/0.2

0.3/0.3

±mV/±% of reading

200 mV to 1 V rms

−1.2

±2.0

−1.2

±2.0

% of reading

TMIN to TMAX

A and B Grades

@ 200 mV rms

0.7/0.7

0.5/0.5

±mV/±% of reading

J and K Grades

@ 200 mV rms

0.007

0.007

±% of reading/°C

vs. Supply Voltage

@ 200 mV rms Input

VS = ±5 V to ±16.5 V

0

+0.06

+0.1

0

+0.06

+0.1

%/V

VS = ±5 V to ±3 V

0

−0.18

−0.3

0

−0.18

−0.3

%/V

DC Reversal Error, DC-Coupled

@ 600 mV dc

1.3

2.5

1.3

2.5

% of reading

Nonlinearity2, 0 mV to 200 mV

@ 100 mV rms

0

0.25

0.35

0

0.25

0.35

% of reading

Total Error, External Trim

0 mV rms to 200 mV rms

0.1/0.5

0.1/0.3

±mV/±% of reading

ERROR VS. CREST FACTOR3

Crest Factor = 1 to 3

CAV, CF = 100 µF

0.7

0.7

% additional error

Crest Factor = 3 to 5

CAV, CF = 100 µF

2.5

2.5

% additional error

INPUT CHARACTERISTICS

High Impedance Input

Signal Range (Pin 2)

Continuous RMS Level

VS = +2.8 V, −3.2 V

200

200

mV rms

VS = ±5 V to ±16.5 V

1

1

V rms

Peak Transient Input

VS = +2.8 V, −3.2 V

±0.9

±0.9

V

VS = ±5 V

±2.7

±2.7

V

VS = ±16.5 V

±4.0

±4.0

V

Input Resistance

1012

1012

Ω

Input Bias Current

VS = ±3 V to ±16.5 V

1

25

1

25

pA

Low Impedance Input

Signal Range (Pin 1)

Continuous RMS Level

VS = +2.8 V, –3.2 V

300

300

mV rms

VS = ±5 V to ±16.5 V

1

1

V rms

Peak Transient Input

VS = +2.8 V, −3.2 V

±1.7

±1.7

V

VS = ±5 V

±3.8

±3.8

V

VS = ±16.5 V

±11

±11

V

Input Resistance

6.4

8

9.6

6.4

8

9.6

kΩ

Maximum Continuous

Nondestructive Input

All supply voltages

±12

±12

V p-p

Input Offset Voltage4

J and K Grades

±3

±3

mV

A and B Grades

±3

±3

mV

vs. Temperature

8

30

8

30

µV/°C

vs. Supply

VS = ±5 V to ±16.5 V

50

150

50

150

µV/V

VS = ±5 V to ±3 V

80

80

µV/V