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AD8270 Datasheet(PDF) 7 Page - Analog Devices

Part No. AD8270
Description  Precision Dual-Channel Difference Amplifier
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD8270 Datasheet(HTML) 7 Page - Analog Devices

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Data Sheet
AD8270
Rev. A | Page 7 of 20
TYPICAL PERFORMANCE CHARACTERISTICS
VS = ±15 V, TA = 25°C, difference amplifier configuration, unless otherwise noted.
160
140
120
100
80
60
40
20
0
–0.9
–0.6
–0.3
0
0.3
0.6
0.9
SYSTEM OFFSET VOLTAGE (mV)
N: 1043
MEAN: –0.003
SD: 0.28
Figure 4. Typical Distribution of System Offset Voltage, G = 1
180
150
120
90
60
30
0
–100
–150
–50
0
50
100
150
CMRR (µV/V)
N: 984
MEAN: –1.01
SD: 27
Figure 5. Typical Distribution of CMRR, G = 1
400
350
300
250
200
150
100
50
0
–0.04
–0.02
0
0.02
0.04
GAIN ERROR (%)
N: 1043
MEAN: –0.015
SD: 0.0068
Figure 6. Typical Distribution of Gain Error, G = 1
20
15
10
5
0
–5
–10
–15
–20
–10
–5
0
5
10
OUTPUT VOLTAGE (V)
(–7.5, +7.5)
(+7.5, +7.5)
(–7.5, –7.5)
(+7.5, –7.5)
(0, +15)
(0, –15)
Figure 7. Common-Mode Input Voltage vs. Output Voltage,
Gain = 0.5, ±15 V Supplies
6
4
2
0
–2
–4
–6
–3
–2
–1
0
1
2
3
OUTPUT VOLTAGE (V)
(–1.25, –1.25)
(+1.25, +1.25)
(–2.5, +2.5)
(+2.5, +2.5)
(–2.5, –2.5)
(+2.5, –2.5)
(–1.25, –1.25)
(+1.25, –1.25)
(0, +2.5)
(0, –2.5)
(0, +5)
(0, –5)
VS = ±2.5
VS = ±5
Figure 8. Common-Mode Input Voltage vs. Output Voltage,
Gain = 0.5, ±5 V and ±2.5 V Supplies
20
15
10
5
0
–5
–10
–15
–20
–20
–15
–10
–5
0
5
10
15
20
OUTPUT VOLTAGE (V)
(0, +15)
(0, –15)
(–14.3, +7.85)
(+14.3, +7.85)
(–14.3, –7.85)
(+14.3, –7.85)
Figure 9. Common-Mode Input Voltage vs. Output Voltage,
Gain = 1, ±15 V Supplies


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