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TS271IBI Schematic ( PDF Datasheet ) - STMicroelectronics

Teilenummer TS271IBI
Beschreibung CMOS PROGRAMMABLE LOW POWER SINGLE OPERATIONAL AMPLIFIER
Hersteller STMicroelectronics
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Gesamt 15 Seiten
TS271IBI Datasheet, Funktion
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






TS271IBI Datasheet, Funktion
TS271C,I,M
TYPICAL CHARACTERISTICS for ISET = 1.5µA
Figure 2 : Supply Current versus Supply Voltage
20
Tamb = 25°C
AV = 1
15 VO = VCC / 2
10
5
0 4 8 12 16
SUPPLY VOLTAGE, VCC (V)
Figure 3 : Input Bias Current versus Free Air
Temperature
100
VCC = 10V
V i = 5V
10
1
25
50 75 100
TEMPERATURE, Tamb ( °C)
125
Figure 4 : High Level Output Voltage versus High
Level Output Current
5
Tamb = 25°C
4 Vid = 100mV
3 VCC= 5V
2
VCC = 3V
1
0
-10
6/15
-8 -6 -4 -2
OUTPUT CURRENT, I OH (mA)
0
Figure 4b : High Level Output Voltage versus
High Level Output Current
20
Tamb = 25°C
16 Vid = 100mV
12
VCC = 16V
8 VCC = 10V
4
0
-50
-40 -30
-20 -10
OUTPUT CURRENT, I OH (mA)
0
Figure 5a : Low Level Output Voltage versus Low
Level Output Current
1.0
VC C = 3 V
0.8
0.6 V C C = 5V
0.4
T amb = 2 5 °C
0 .2 V ic = 0 .5 V
V id = -1 0 0 m V
0 123
O U T P U T C U R R E N T , I OL (m A )
Figure 5b : Low Level Output Voltage versus Low
Level Output Current
3
V CC = 10V
2 VCC = 16V
1
Tamb = 2 5 °C
V
V
i
= 0.5V
= -100mV
id
0 4 8 12 16 20
O U T P U T C U R R E N T , I OL (m A )

6 Page









TS271IBI pdf, datenblatt
TS271C,I,M
TYPICAL CHARACTERISTICS for ISET = 130µA
Figure 20 : Supply Current (each amplifier)
versus Supply Voltage
1.0
0.8
0.6
0.4
Tamb = 25°C
0.2 A V = 1
VO = VCC / 2
0
4 8 12 16
SUPPLY VOLTAGE, VCC (V)
Figure 21 : Input Bias Current versus Free Air
Temperature
100
VCC = 10V
V i = 5V
10
1
25
50 75 100
TEMPERATURE, Tamb ( °C)
125
Figure 22a : High Level Output Voltage versus
High Level Output Current
5
Tamb = 25°C
4 Vid = 100mV
3 VCC= 5V
2
VCC = 3V
1
0
-10
12/15
-8 -6 -4 -2
OUTPUT CURRENT, I OH (mA)
0
Figure 22b : High Level Output Voltage versus
High Level Output Current
20
Tamb = 25°C
16 Vid = 100mV
12
VCC = 16V
8 VCC = 10V
4
0
-50
-40 -30
-20 -10
OUTPUT CURRENT, I OH (mA)
0
Figure 23a : Low Level Output Voltage versus
Low Level Output Current
1.0
VC C = 3 V
0.8
0.6 V C C = 5V
0.4
T amb = 2 5 °C
0 .2 V ic = 0 .5 V
V id = -1 0 0 m V
0 123
O U T P U T C U R R E N T , I OL (m A )
Figure 23b : Low Level Output Voltage versus
Low Level Output Current
3
V CC = 10V
2 VCC = 16V
1
Tamb = 2 5 °C
V
V
i
= 0.5V
= -100mV
id
0 4 8 12 16 20
O U T P U T C U R R E N T , I OL (m A )

12 Page





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