TS271_05 Datasheet, PDF (1/17 Pages) STMicroelectronics – CMOS Programmable Low Power Single Operational Amplifier

TS271
CMOS Programmable
Low Power Single Operational Amplifier
■ Offset null capability (by external
compensation)
■ Dynamic characteristics adjustable I_SET
■ Consumption current and dynamic
parameters are stable regarding the
voltage power supply variations
■ Output voltage can swing to ground
■ Very large I_SET range
■ Stable and low offset voltage
■ Three input offset voltage selections
Description
The TS271 is a low cost, low power single
operational amplifier designed to operate with
single or dual supplies. This operational amplifier
uses the ST silicon gate CMOS process giving it
an excellent consumption-speed ratio. This
amplifier is ideally suited for low consumption
applications.
The power supply is externally programmable with
a resistor connected between pins 8 and 4. It
allows to choose the best consumption-speed
ratio and supply current can be minimized
according to the required speed. This device is
specified for the following I_SET current values:
1.5µA, 25µA, 130µA.
This CMOS amplifier offers 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 8, Figure 19, Figure 30.
N
DIP8
(Plastic Package)
D
SO-8
(Plastic Micropackage)
Pin Connections (top view)
1
8
2
-
7
3
+
6
4
5
1 - Offset Null 1
2 - Inverting Input 1
3 - Non-inverting Input 1
4
-
V
-
CC
5 - Offset Null 2
6 - Output
7 - V_CC⁺
8 - I _Set
Order Codes
Part Number
TS271CN/ACN
TS271CD/CDT/ACD/ACDT
TS271IN/AIN/
TS271ID/IDT/AID/AIDT/BID/BIDT
TS271BMD
Temperature Range
0°C, +70°C
-40°C, +125°C
-55°C, +125°C
Package
DIP
SO
DIP
SO
SO
Packaging
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March 2005
Revision 2
1/17