October 2009 Doc ID 6972 Rev 6 1/18
18
TS94x, TS94xA, TS94xB
Output rail-to-rail micropower operational amplifiers
Features
■ Rail-to-rail output voltage swing
■ Micropower consumption (1.2 µA)
■ Single supply operation (2.5 V to 10 V)
■ CMOS inputs
■ Ultra low input bias current (1 pA)
■ ESD protection (2 kV)
■ Latch-up immunity (class A)
■ Available in SOT23-5 micropackage
Applications
■ Battery-powered systems (alarm)
■ Portable communication systems (pagers)
■ Smoke/gas/fire detectors
■ Instrumentation and sensoring
■ PH meter
Description
The TS94x (single, dual and quad) series are
operational amplifiers characterized for 2.5 V to
10 V operation over a -40° C to +85° C
temperature range.
They exhibit excellent consumption -1.2 µA, while
featuring 10 kHz gain bandwidth product, 1.5 mA
output capability and output rail-to-rail operation
- 2.85 V typical at 3 V with R
L
=10 kΩ.
The TS94x op-amps are ideal for battery-powered
systems, where very low supply current and
output rail-to-rail are required. Their very low
- 1 pA typical input bias current and constant
supply current over supply voltage enhance the
devices’ performance near the end of the battery
charge or battery life.
Table 1. Device summary
Reference Selection on offset voltage
TS94x TS941, TS942, TS944
TS94xA TS941A, TS942A, TS944A
TS94xB TS941B, TS942B, TS944B
1
2
3
4
5
Inverting input
Non-inverting input
Output
V
DD
V
CC
1
2
3
4
5
6
7
8
-
+
Inverting Input 1
N.C.
Non-inverting Input 1
V
DD
V
CC
Output 2
N.C.
N.C.
Inverting Input 2
Non-inverting Input 2
Non-inverting Input 1
DD
V
1
2
3
4
8
5
6
7
9
10
11
12
13
14
CC
V
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
1
2
3
45
6
7
8
-
+
-
+
Inverting Input 1
Output 1
Non-inverting Input 1
V
DD
V
CC
Output 2
Inverting Input 2
Non-inverting Input 2
TS941ILT
TS944ID-TS944IDT-TS944IPT
TS941ID-TS941IDT
TS942ID-TS942IDT-TS942IPT
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