OP193_02 Datasheet, PDF (15/16 Pages) Analog Devices – Precision, Micropower Operational Amplifiers

OP193/OP293/OP493
V_INA
C1
0.1␮F
3
R_FBA
V_{I N} B
C2
0.1␮F
7
R_FBB
V_DD ¹
V_REFA 2
DAC A
1/4
DAC8408
I_{OUT1A 4}
I_{OUT2A/2B 5}
R1
10M⍀
V_REFB ₈
DAC B
1/4
DAC8408
I_{OUT1B 6}
R2
10M⍀
V_{I N} C
C3
0.1␮F
26
R_FBC
V_IN D
C4
0.1␮F
22
R_FBD
V_REFC ₂₇
DAC C
I_{OUT1C 25}
1/4
DAC8408
R3
10M⍀
I_{OUT2C/2D 24}
V_REFD ₂₁
DAC D
1/4
DAC8408
I_{OUT1D 23}
R4
10M⍀
DAC DATA BUS
PINS 9(LSB)–16(MSB)
DIGITAL
CONTROL
SIGNALS
17 _A/B
18 _R/W
19
DS1
20
DS2
DAC8408ET
DGND
28
5V
4
2
A
1
1/4 OP493
3
11
V_OUTA
6
B
7
1/4 OP493
5
V_OUTB
9
C
8
1/4 OP493
10
V_OUTC
13
D
14
1/4 OP493
12
OP493
V_OUTD
2.5V
REFERENCE
VOLTAGE
Figure 14. Single-Supply Micropower Quad Programmable-Gain Amplifier
REV. B
–15–