Electronic Components Datasheet Search
  English  ▼

Delete All
ON OFF
ALLDATASHEET.COM

X  

Preview PDF Download HTML

INA157UAG4 Datasheet(PDF) 7 Page - Texas Instruments

Part No. INA157UAG4
Description  High-Speed, Precision DIFFERENCE AMPLIFIER
Download  12 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

INA157UAG4 Datasheet(HTML) 7 Page - Texas Instruments

Back Button INA157UAG4 Datasheet HTML 3Page - Texas Instruments INA157UAG4 Datasheet HTML 4Page - Texas Instruments INA157UAG4 Datasheet HTML 5Page - Texas Instruments INA157UAG4 Datasheet HTML 6Page - Texas Instruments INA157UAG4 Datasheet HTML 7Page - Texas Instruments INA157UAG4 Datasheet HTML 8Page - Texas Instruments INA157UAG4 Datasheet HTML 9Page - Texas Instruments INA157UAG4 Datasheet HTML 10Page - Texas Instruments INA157UAG4 Datasheet HTML 11Page - Texas Instruments Next Button
Zoom Inzoom in Zoom Outzoom out
 7 / 12 page
background image
7
®
INA157
APPLICATIONS INFORMATION
The INA157 is a difference amplifier suitable for a wide
range of general-purpose applications. Figure 1 shows the
basic G = 1/2 configuration. The input and feedback resis-
tors can be reversed to achieve G = 2, as shown in Figure 2.
For applications requiring G = 1, the INA154 is recom-
mended.
Decoupling capacitors are strongly recommended for appli-
cations with noisy or high impedance power supplies. The
capacitors should be placed close to the device pins as
shown in Figure 1.
As shown in Figure 1, the output is referred to the reference
terminal (pin 1). A voltage applied to this pin will be
summed with the output signal. The differential input signal
is connected to pins 2 and 3. The source impedances con-
nected to the inputs must be nearly equal to assure good
common-mode rejection. A 5
Ω mismatch in source imped-
ance will degrade the common-mode rejection of a typical
device to approximately 77dB (RTO). If the source has a
known impedance mismatch, an additional resistor in series
with the opposite input can be used to preserve good com-
mon-mode rejection.
V
3
5
6
3
1
Ref
INA157
V
O = 1/2 (V3 – V2)
2
R
3
12k
R
1
12k
R
2
6k
R
4
6k
R
L
V
2
–In
+In
1
µF
V–
4
1
µF
V+
7
FIGURE 1. G = 1/2 Differential Amplifier (basic power
supply and signal connections).
FIGURE 2. G = 2 Differential Amplifier.
V
3
5
6
3
V
O
INA157
V
O = 1/2 (V3 – V2)
Offset Adjustment
Range =
±1mV
G = 1/2
2
R
4
6k
V
2
20
250k
10
100k
+15V
–15V
1
R
3
12k
R
1
12k
R
2
6k
FIGURE 3. Offset Adjustment.
OPERATING VOLTAGE
The INA157 operates from
±4V to ±18V supplies with
excellent performance. Most behavior remains unchanged
throughout the full operating voltage range. Parameters
which vary significantly with operating voltage are shown in
the Typical Performance Curves.
INPUT VOLTAGE RANGE
The INA157 can accurately measure differential signals
that are above the positive or negative power supply rail. In
a gain of 1/2, the linear common-mode range extends from
3•(V+) – 7.5V to 3•(V–) +7.5V. See the Typical Perfor-
mance Curve, “Input Common-Mode Range vs Output
Voltage.”
OFFSET VOLTAGE TRIM
The INA157 is laser trimmed for low offset voltage and
drift. Most applications require no external offset adjust-
ment. Figure 3 shows an optional circuit for trimming the
output offset voltage. The output is referred to the output
reference terminal (pin 1), which is normally grounded. A
voltage applied to the Ref terminal will be summed with the
output signal. This can be used to null offset voltage as
shown in Figure 3. The source impedance of a signal
applied to the Ref terminal should be less than 10
Ω to
maintain good common-mode rejection.
V
3
2
6
1
INA157
V
O = 2 (V3 – V2)
5
R
4
6k
R
3
12k
R
2
6k
R
1
12k
V
2
–In
+In
3
Ref
R
L


Similar Part No. - INA157UAG4

ManufacturerPart No.DatasheetDescription
Burr-Brown (TI)
Burr-Brown (TI)
INA157UA BURR-BROWN-INA157UA Datasheet
80Kb / 8P
   High-Speed, Precision DIFFERENCE AMPLIFIER
Texas Instruments
Texas Instruments
INA157UA-2K5 TI1-INA157UA-2K5 Datasheet
288Kb / 12P
[Old version datasheet]   High-Speed, Precision DIFFERENCE AMPLIFIER
More results

Similar Description - INA157UAG4

ManufacturerPart No.DatasheetDescription
Burr-Brown (TI)
Burr-Brown (TI)
INA157 BURR-BROWN-INA157 Datasheet
80Kb / 8P
   High-Speed, Precision DIFFERENCE AMPLIFIER
Texas Instruments
Texas Instruments
INA157UA-2K5 TI1-INA157UA-2K5 Datasheet
288Kb / 12P
[Old version datasheet]   High-Speed, Precision DIFFERENCE AMPLIFIER
Burr-Brown (TI)
Burr-Brown (TI)
INA154 BURR-BROWN-INA154 Datasheet
85Kb / 9P
   High-Speed, Precision DIFFERENCE AMPLIFIER G = 1
Texas Instruments
Texas Instruments
INA154 TI1-INA154 Datasheet
291Kb / 13P
[Old version datasheet]   High-Speed, Precision DIFFERENCE AMPLIFIER (G = 1)
Analog Devices
Analog Devices
AD8209 AD-AD8209_16 Datasheet
364Kb / 16P
   High Voltage, Precision Difference Amplifier
AD8202-KGD AD-AD8202-KGD Datasheet
143Kb / 8P
   High Voltage, Precision Difference Amplifier
Rev. 0
Burr-Brown (TI)
Burr-Brown (TI)
INA133 BURR-BROWN-INA133_07 Datasheet
245Kb / 18P
   High-Speed, Precision DIFFERENCE AMPLIFIERS
INA133 BURR-BROWN-INA133 Datasheet
190Kb / 15P
   High-Speed, Precision DIFFERENCE AMPLIFIERS
Texas Instruments
Texas Instruments
INA2133UAE4 TI-INA2133UAE4 Datasheet
376Kb / 20P
[Old version datasheet]   High-Speed, Precision DIFFERENCE AMPLIFIERS
Analog Devices
Analog Devices
AD8209 AD-AD8209 Datasheet
318Kb / 16P
   High Voltage, Precision Difference Amplifier
REV. 0
More results


Html Pages

1  2  3  4  5  6  7  8  9  10  11  12 


Datasheet Download

Go To PDF Page


Link URL



Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz