Datasheet

AD8641/AD8642/AD8643 Data Sheet
Rev. E | Page 8 of 16
–600
–400
–200
–300
–500
0
–100
OFFSET VOLTAGE (μV)
200
100
400
300
600
500
–5 0–15 –10 5 10 15
OUTPUT VOLTAGE (V)
05072-014
10kΩ
1kΩ
100kΩ
V
SY
= ±13V
Figure 19. Input Error Voltage vs. Output Voltage for Resistive Loads
–350
–250
–150
–200
–300
–50
–100
INPUT VOLTAGE (μV)
50
0
150
100
250
200
0 50 100 150 200 250 300 350
OUTPUT VOLTAGE FROM SUPPLY RAIL (mV)
05072-015
R
L
= 1kΩ
POS RAIL
NEG RAIL
R
L
= 10kΩ
R
L
= 2kΩ
R
L
= 100kΩ
R
L
= 100kΩ
R
L
= 10kΩ
R
L
= 1kΩ
R
L
= 2kΩ
V
SY
= ± 5V
Figure 20. Input Error Voltage vs. Output Voltage
Within 300 mV of Supply Rails
0
100
200
300
400
500
I
SY
(μA)
600
700
800
4 8 12 16 20 24 28
V
SY
(V)
05072-016
+25°C
–55°C
+125°C
Figure 21. Quiescent Current vs. Supply Voltage at Different Temperatures
SATURATION VOLTAGE (mV)
1
10
100
1000
10000
0.001 0.01 0.1 1 10 100
LOAD CURRENT (mA)
05072-017
– V
SY
– V
OL
V
SY
– V
OH
V
SY
= ± 13V
Figure 22. Output Saturation Voltage vs. Load Current
SATURATION VOLTAGE (mV)
1
10
100
1000
10000
0.001 0.01 0.1 1 10 100
LOAD CURRENT (mA)
05072-018
V
OL
V
SY
–V
OH
V
SY
=5V
Figure 23. Output Saturation Voltage vs. Load Current
–30 –135
–90
–45
0
45
90
135
180
225
270
315
–20
–10
0
10
20
30
40
50
60
70
10k 100k 1M 10M
PHASE (Degrees)
GAIN
PHASE
V
SY
= ± 13V
R
L
= 2k Ω
C
L
= 40pF
GAIN (dB)
FREQUENCY (Hz)
05072-019
Figure 24. Open-Loop Gain and Phase Margin vs. Frequency