Datasheet

+
-
+V
OUT
+V
IN
C
R4A
C
3A
, R
5A,
R
5B,
C
3B
= 0 (SHORT)
R
14A
AMP A
-
+
-V
OUT
AMP B
R
7A
-V
IN
A = 1+
R
14A
+ R
14B
R
3
R
7B
V
+
R
3
R
6A
R
6B
R
2
R
1
V
+
R
8A
R
8B
C
R4B
C
1
V
+
R
14B
www.ti.com Applications Using Two Amplifiers
4.3 Differential Input, Differential Output, Non-Inverting
Combining two non-inverting amplifiers with a common feedback network, as shown in Figure 13, forms a
non-inverting amplifier with a differential input and a differential output. Through the inherent cancellation
of the two op amp common-mode error signals this configuration fully exploits the noise reduction benefits
of CMRR. In addition the output voltage swing is doubled and depending on the op amp used, the
bandwidth and slew rate may also be increased, while maintaining the original gain bandwidth
specification.
Figure 13. Differential Input, Differential Output, Non-Inverting
9
SNOA487C–May 2007–Revised May 2013 AN-1606 551012875, 551012922 Universal Op Amp Evaluation Boards
(SOT-23 and SC-70)
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