February 2008 Rev 3 1/14
14
TS274
High performance CMOS quad operational amplifier
Features
■ Output voltage can swing to ground
■ Excellent phase margin on capacitive loads
■ Gain bandwidth product: 3.5 MHz
■ Unity gain stable
■ Two input offset voltage selections
Description
The TS274 devices are low cost, quad
operational amplifiers designed to operate with
single or dual supplies. These operational
amplifiers use the ST silicon gate CMOS process
giving an excellent consumption-speed ratio.
These series are ideally suited for low
consumption applications.
Three power consumptions are available thus
offering the best consumption-speed ratio for your
application:
■ I
CC
= 10 µA/amp: TS27L4 (very low power)
■ I
CC
= 150 µA/amp: TS27M4 (low power)
■ I
CC
= 1 mA/amp: TS274 (standard)
These CMOS amplifiers offer very high input
impedance and extremely low input currents. The
major advantage versus JFET devices is the very
low input currents drift with temperature (see
Figure 5 on page 6).
For enhanced features of TS274, in particular rail-
to-rail capability and low offset voltage, two new
families, TSV91x and TSV99x will better suit low
voltage applications.
DIP14
(Plastic package)
SO-14
(Plastic micropackage)
Pin connections (top view)
TSSOP14
(Thin shrink small outline package)
Inverting Input 2
Non-inverting Input 2
Non-inverting Input 1
CC
V
-
CC
V
1
2
3
4
8
5
6
7
9
10
11
12
13
14
+
Output 3
Output 4
Non-inverting Input 4
Inverting Input 4
Non-inverting Input 3
Inverting Input 3
-
+
-
+
-
+
-
+
Output 1
Inverting Input 1
Output 2
Table 1. Enhanced related families
Part
number
V
CC
range (V)
Rail-to-
rail I/O
V
io
max
(mV)
I
ib
max
(pA)
A
vd
min
(dB)
I
CC
max
(mA)
GBP typ
(MHz)
SR typ
(V/µs)
Packages
TSV914 2.5 - 5.5 I/O 1.5/4.5 10 80 1.1 8 4.5
SO-14,
TSSOP14
TSV994 2.5 - 5.5 I/O 1.5/4.5 10 80 1.1
20
(G ≥3)
10
SO-14,
TSSOP14
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