Datasheet

AD698–SPECIFICATIONS
REV. B
–2–
(@ T
A
= +258C, V
CM
= 0 V, and V+, V– = 615 V dc, unless otherwise noted)
AD698SQ AD698AP
Parameter Min Typ Max Min Typ Max Unit
TRANSFER FUNCTION
1
V
OUT
=
A
B
× 500 µA × R2
V
OVERALL ERROR T
MIN
to T
MAX
0.4 1.65 0.4 1.65 % of FS
SIGNAL OUTPUT CHARACTERISTICS
Output Voltage Range 611 611 V
Output Current, T
MIN
to T
MAX
11 11 mA
Short Circuit Current 20 20 mA
Nonlinearity
2
T
MIN
to T
MAX
75 6500 75 6500 ppm of FS
Gain Error
3
0.1 61.0 0.1 61.0 % of FS
Gain Drift 20 6100 20 6100 ppm/°C of FS
Output Offset 0.02 61 0.02 61 % of FS
Offset Drift 5 625 5 625 ppm/°C of FS
Excitation Voltage Rejection
4
100 100 ppm/dB
Power Supply Rejection (±12 V to ±18 V)
PSRR Gain 50 300 50 300 ppm/V
PSRR Offset 15 100 15 100 ppm/V
Common-Mode Rejection (±3 V)
CMRR Gain 25 100 25 100 ppm/V
CMRR Offset 2 100 2 100 ppm/V
Output Ripple
5
4 4 mV rms
EXCITATION OUTPUT CHARACTERISTICS (@ 2.5 kHz)
Excitation Voltage Range 2.1 24 2.1 24 V rms
Excitation Voltage (Resistors Are 1% Absolute Values)
(R1 = Open)
6
1.2 2.15 1.2 2.15 V rms
(R1 = 12.7 kΩ) 2.6 4.35 2.6 4.35 V rms
(R1 = 487 Ω) 14 21.2 14 21.2 V rms
Excitation Voltage TC
7
100 100 ppm/°C
Output Current 30 50 30 50 mA rms
T
MIN
to T
MAX
40 40 mA rms
Short Circuit Current 60 60 mA
DC Offset Voltage (Differential, R1 = 12.7 kΩ)
T
MIN
to T
MAX
30 6100 30 6100 mV
Frequency 20 20 k 20 20 k Hz
Frequency TC 200 200 ppm/°C
Total Harmonic Distortion –50 –50 dB
SIGNAL INPUT CHARACTERISTICS
A/B Ratio Usable Full-Scale Range 0.1 0.9 0.l 0.9
Signal Voltage B Channel 0.1 3.5 0.1 3.5 V rms
Signal Voltage A Channel 0.0 3.5 0.0 3.5 V rms
Input Impedance 200 200 kΩ
Input Bias Current (BIN, AIN) 1 5 1 5 µA
Signal Reference Bias Current 2 10 2 10 µA
Excitation Frequency 0 20 k 0 20 k Hz
POWER SUPPLY REQUIREMENTS
Operating Range 13 36 13 36 V
Dual Supply Operation (±10 V Output) ±13 ±13 V
Single Supply Operation
0 V to +10 V Output 17.5 17.5 V
0 V to 10 V Output 17.5 17.5 V
Current (No Load at Signal and Excitation Outputs) 12 15 12 15 mA
T
MIN
to T
MAX
18 18 mA
OPERATING TEMPERATURE RANGE –55 +125 –40 +85 °C