AD7834 Просмотр технического описания (PDF) - Analog Devices
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AD7834 Datasheet PDF : 28 Pages
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AD7834/AD7835
SPECIFICATIONS
VCC = 5 V ± 5%; VDD = 15 V ± 5%; VSS = −15 V ± 5%; AGND = DGND = 0 V; TA1 = TMIN to TMAX, unless otherwise noted.
Table 1.
Parameter
ACCURACY
Resolution
Relative Accuracy
Differential Nonlinearity
Full-Scale Error
TMIN to TMAX
Zero-Scale Error
Gain Error
Gain Temperature
Coefficient2
DC Crosstalk2
REFERENCE INPUTS
DC Input Resistance
Input Current
VREF(+) Range
VREF(−) Range
VREF(+) − VREF(−)
A
14
±2
±0.9
±5
±4
±0.5
4
20
50
30
±1
0/8.192
−8.192/0
5/14
DEVICE SENSE GROUND INPUTS
Input Current
DIGITAL INPUTS
VINH, Input High Voltage
VINL, Input Low Voltage
IINH, Input Current
CIN, Input Capacitance
POWER REQUIREMENTS
VCC
VDD
VSS
Power Supply Sensitivity
ΔFull Scale/ΔVDD
ΔFull Scale/ΔVSS
ICC
IDD
ISS
±2
2.4
0.8
±10
10
5.0
15.0
−15.0
110
100
0.2
3
6
13
15
13
B
S
Unit
14
14
Bits
±1
±2
LSB max
±0.9
±0.9
LSB max
±5
±8
mV max
±4
±5
mV max
±0.5
±0.5
mV typ
4
4
ppm FSR/°C typ
20
20
ppm FSR/°C max
50
50
μV max
30
±1
0/8.192
−8.192/0
7/14
30
±1
0/8.192
−8.192/0
5/14
MΩ typ
μA max
V min/max
V min/max
V min/max
±2
2.4
0.8
±10
10
5.0
15.0
−15.0
110
100
0.2
3
6
13
15
13
±2
2.4
0.8
±10
10
5.0
15.0
−15.0
110
100
0.5
3
6
15
15
15
μA max
V min
V max
μA max
pF max
V nom
V nom
V nom
dB typ
dB typ
mA max
mA max
mA max
mA max
mA max
mA max
Test Conditions/Comments
Guaranteed monotonic over temperature.
VREF(+) = +7 V, VREF(−) = −7 V.
VREF(+) = +7 V, VREF(−) = −7 V.
VREF(+) = +7 V, VREF(−) = −7 V.
See the Terminology section. RL = 10 kΩ.
Per input.
For specified performance. Can go as low as
0 V, but performance is not guaranteed.
Per input. VDSG = −2 V to +2 V.
±5% for specified performance.
±5% for specified performance.
±5% for specified performance.
VINH = VCC, VINL = DGND.
AD7834: VINH = 2.4 V min, VINL = 0.8 V max.
AD7835: VINH = 2.4 V min, VINL = 0.8 V max.
AD7834: outputs unloaded.
AD7835: outputs unloaded.
Outputs unloaded.
1 Temperature range for A, B, and C versions is −40°C to +85°C.
2 Guaranteed by design.
Rev. D | Page 3 of 28
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