OP270 Analog Devices, OP270 Datasheet - Page 18

• Manufacturer Part Number: OP270
• Description: Low Noise Precision Dual Op Amp
• Manufacturer: Analog Devices

Specifications of OP270

• -3db Bandwidth: 5MHz
• Slew Rate: 2.4V/µs
• Vos: 50µV
• Ib: 15nA
• # Opamps Per Pkg: 2
• Input Noise (nv/rthz): 3.2nV/rtHz
• Vcc-vee: 9V to 36V
• Isy Per Amplifier: 3.25mA
• Packages: DIP,SOIC

OP270
–IN
CONTROL
WRITE
V
V
IN
IN
A
B
PINS 6 (MSB) TO 17 (LSB)
23
18
19
20
3
+IN
DAC DATA BUS
DAC8221P
Figure 46. Dual Programmable Gain Amplifier
(One of Two Amplifiers Is Shown)
Figure 47. Simplified Schematic
R
R
FBB
FBA
DGND
+5V
V
Rev. E | Page 18 of 20
DAC A
DAC B
DD
21
5
V
AGND
V
I
I
OUT
OUT
BIAS
REF
REF
A
B
20MΩ
A
B
2
1
24
22
4
20MΩ
2
3
6
5
OP270GP
OP270EZ
–15V
+15V
1/2
1/2
8
4
+
1
–
7
0.01µF
10µF
0.1µF
V
V
+
–
10µF
OUT
OUT
A
B
V+
V–
OUT