AD8610ARM Analog Devices, AD8610ARM Datasheet - Page 13

• Manufacturer Part Number: AD8610ARM
• Description: Precision Very Low Noise Low Input Bias Current Wide Bandwith JFET Operational Amplifier
• Manufacturer: Analog Devices

Noise vs. Common-Mode Voltage
AD8610 noise density varies only 10% over the input range as
shown in Table I.
V
–10
–5
0
+5
+10
Settling Time
The AD8610 has a very fast settling time even to a very tight
error band as can be seen from Figure 18. The AD8610 is configured
in an inverting gain of +1 with 2 kΩ input and feedback resistors.
The output is monitored with a 10×, 10 M, 11.2 pF scope probe.
The AD8610 maintains this fast settling when loaded with large
capacitive loads as shown in Figure 20.
CM
at F = 1 kHz (V)
1.2k
1.0k
1.2k
1.0k
800
600
400
200
800
600
400
200
0.001
0
0
Table I. Noise vs. Common-Mode Voltage
0.001
0.01
0.01
Noise Reading (nV/
7.21
6.89
6.73
6.41
7.21
ERROR BAND – %
ERROR BAND – %
0.1
0.1
OPA627
1
1
√
Hz)
10
10
Output Current Capability
The AD8610 can drive very heavy loads due to its high output
current. It is capable of sourcing or sinking 45 mA at ±10 V output.
The short circuit current is quite high and the part is capable of
sinking about 95 mA and sourcing over 60 mA while operating with
supplies of ± 5 V. Figures 22 and 23 compare the load current
versus output voltage of AD8610 and OPA627.
3.0
2.0
1.0
0.0
2.5
1.5
0.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
0.1
10
1
0.00001
0
0
V
V
ERROR BAND
ERROR BAND
CC
EE
0.0001
500
500
0.01%
0.01%
LOAD CURRENT – A
0.001
C
C
1000
1000
L
L
– pF
– pF
0.01
±
1500
1500
0.1
AD8610
2000
2000
1