AD8421 AD [Analog Devices], AD8421 Datasheet - Page 15

• Manufacturer Part Number: AD8421
• Description: 3 nV/?Hz, Low Power
• Manufacturer: AD [Analog Devices]

Data Sheet
Figure 34. Output Voltage Swing vs. Supply Voltage, R
–10
–15
15
10
–5
+V
–V
–0.5
–1.0
–1.5
–2.0
–2.5
+2.5
+2.0
+1.5
+1.0
+0.5
+V
–V
5
0
+8
+6
+4
+2
–2
–4
–6
–8
100
S
S
S
S
0
Figure 35. Output Voltage Swing vs. Load Resistance
0
Figure 36. Output Voltage Swing vs. Output Current
0.01
2
0.02
4
0.03
1k
6
SUPPLY VOLTAGE (±V
OUTPUT CURRENT (A)
0.04
8
LOAD (Ω)
0.05
10
0.06
12
10k
0.07
S
14
)
0.08
16
–40°C
+25°C
+85°C
+105°C
+125°C
L
–40°C
+25°C
+85°C
+105°C
+125°C
0.09
–40°C
+25°C
+85°C
+105°C
+125°C
= 600 Ω
18
100k
0.10
20
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Figure 39. Gain Nonlinearity (G = 1000), R
–100
100
–20
–40
–60
–80
–1
–2
–3
–4
–5
–1
–2
–3
–4
–5
80
60
40
20
5
4
3
2
1
0
5
4
3
2
1
0
0
–10
–10
–10
Figure 37. Gain Nonlinearity (G = 1), R
Figure 38. Gain Nonlinearity (G = 1), R
–8
–8
–8
–6
–6
–6
–4
–4
–4
OUTPUT VOLTAGE (V)
OUTPUT VOLTAGE (V)
OUTPUT VOLTAGE (V)
R
–2
–2
L
–2
= 600Ω
R
L
= 600Ω
0
0
0
2
2
2
L
= 600 Ω, V
L
4
= 10 kΩ, 2 kΩ
4
4
L
= 600 Ω
GAIN = 1000
6
6
6
R
R
L
L
GAIN = 1
GAIN = 1
OUT
= 2kΩ
= 10kΩ
AD8421
8
8
8
= ±10 V
10
10
10