OPERATIONAL AMPLIFIER. TS271CB Datasheet


TS271CB AMPLIFIER. Datasheet pdf. Equivalent


TS271CB


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 ISET

s CONSUMPTION CURRENT AND DYNAMIC
PARAMETERS ARE STABLE REGARDING THE VOLTAGE POWER SUPPLY VARIATIONS OUTPUT VOLTAGE CAN SWING TO GROUND VERY LARGE ISET RANGE STABLE AND LOW OFFSET VOLTAGE THREE INPUT OFFSET VOLTAGE SELECTIONS

s s s s

N DIP8 (Plastic Package)

DESCRIPTION The TS271 is a low cost, low power single opertional 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 ISET 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 3). ORDER CODE
Package Part Number Temperature Range N TS271C/AC/BC 0°C, +70°C TS271I/AI/BI -40°C, +125°C TS271M/AM/BM -55°C, +125°C Example : TS271ACN • • • D • • •
1 - Offset...



TS271CB
TS271C,I,M
CMOS PROGRAMMABLE
LOW POWER SINGLE OPERATIONAL AMPLIFIER
s OFFSET NULL CAPABILITY (by external
compensation)
s DYNAMIC CHARACTERISTICS
ADJUSTABLE ISET
s CONSUMPTION CURRENT AND DYNAMIC
PARAMETERS ARE STABLE REGARDING
THE VOLTAGE POWER SUPPLY
VARIATIONS
s OUTPUT VOLTAGE CAN SWING TO
GROUND
s VERY LARGE ISET 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 ISET 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
2-
3+
4
8
7
6
5
1 - Offset Null 1
2 - Inverting Input 1
3 - Non-inverting Input 1
4
-
V
-
CC
5 - Offset Null 2
6 - Output
7 - VCC+
8 - I Set
November 2001
1/15

TS271CB
TS271C,I,M
BLOCK DIAGRAM
VCC
Current
source
xI
Input
differential
Second
stage
Output
stage
Output
EE
VCC
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
TS271C/AC/BC TS271I/AI/BI TS271M/AM/BM
VCC+ Supply Voltage 1)
18
Vid Differential Input Voltage 2)
±18
Vi Input Voltage 3)
-0.3 to 18
Io Output Current for VCC+ 15V
±30
Iin Input Current
±5
Toper Operating Free-Air Temperature Range
0 to +70
-40 to +125
-55 to +125
Tstg Storage Temperature Range
-65 to +150
1. All values, except differential voltage are with respect to network ground terminal.
2. Differential voltages are the non-inverting input terminal with respect to the inverting input terminal.
3. The magnitude of the input and the output voltages must never exceed the magnitude of the positive supply voltage.
Unit
V
V
V
mA
mA
°C
°C
OPERATING CONDITIONS
Symbol
Parameter
VCC+
Vicm
Supply Voltage
Common Mode Input Voltage Range
Value
3 to 16
0 to VCC+ - 1.5
Unit
V
V
2/15




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