TS271 Datasheet, PDF (1/15 Pages) STMicroelectronics – CMOS PROGRAMMABLE LOW POWER SINGLE OPERATIONAL AMPLIFIER

TS271C,I,M
CMOS PROGRAMMABLE
LOW POWER SINGLE OPERATIONAL AMPLIFIER
s OFFSET NULL CAPABILITY (by external
compensation)
s DYNAMIC CHARACTERISTICS
ADJUSTABLE I_SET
s CONSUMPTION CURRENT AND DYNAMIC
PARAMETERS ARE STABLE REGARDING
THE VOLTAGE POWER SUPPLY
VARIATIONS
s OUTPUT VOLTAGE CAN SWING TO
GROUND
s VERY LARGE I_SET RANGE
s STABLE AND LOW OFFSET VOLTAGE
s THREE INPUT OFFSET VOLTAGE
SELECTIONS
DESCRIPTION
The TS271 is a low cost, low power single oper-
tional amplifier designed to operate with single or
dual supplies. This operational amplifier uses the
ST silicon gate CMOS process giving it an excel-
lent consumption-speed ratio. This amplifier is ide-
ally suited for low consumption applications.
The power supply is externally programmable with
a resistor connected between pins 8 and 4. It al-
lows 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 imped-
ance and extremely low input currents. The major
advantage versus JFET devices is the very low in-
put currents drift with temperature (see figure 3).
ORDER CODE
Part Number Temperature Range
TS271C/AC/BC
0°C, +70°C
TS271I/AI/BI
-40°C, +125°C
TS271M/AM/BM
-55°C, +125°C
Example : TS271ACN
Package
ND
••
••
••
N = Dual in Line Package (DIP)
D = Small Outline Package (SO) - also available in Tape & Reel (DT)
N
DIP8
(Plastic Package)
D
SO8
(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
November 2001
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