DatasheetsPDF.com

Difference Amplifier. AD8271 Datasheet

DatasheetsPDF.com

Difference Amplifier. AD8271 Datasheet






AD8271 Amplifier. Datasheet pdf. Equivalent




AD8271 Amplifier. Datasheet pdf. Equivalent





Part

AD8271

Description

Programmable Gain Precision Difference Amplifier



Feature


www.DataSheet4U.com Programmable Gain P recision Difference Amplifier AD8271 FU NCTIONAL BLOCK DIAGRAM 10kΩ P1 1 10k 2 FEATURES With no external resisto rs Difference amplifier, gains of ½, 1 , or 2 Single-ended amplifier: over 40 different gains Set reference voltage a t midsupply Excellent ac specifications 15 MHz bandwidth 30 V/μs slew rate Hi gh accuracy dc performan.
Manufacture

Analog Devices

Datasheet
Download AD8271 Datasheet


Analog Devices AD8271

AD8271; ce 0.08% maximum gain error 10 ppm/°C m aximum gain drift 80 dB minimum CMRR (g ain of 2) 10-lead MSOP package Supply c urrent: 2.6 mA Supply range: ±2.5 V to ±18 V 10kΩ 10 N3 10kΩ 9 P2 P3 3 20kΩ 10kΩ 8 N2 N1 OUT 7 P4 4 20kΩ –VS 5 AD8271 Figure 1. 6 + VS APPLICATIONS ADC driver Instrumenta tion amplifier building blocks Level tr anslators Automatic test equipmen.


Analog Devices AD8271

t High performance audio Sine/cosine enc oders GENERAL DESCRIPTION The AD8271 i s a low distortion, precision differenc e amplifier with internal gain setting resistors. With no external components, it can be configured as a high perform ance difference amplifier with gains of ½, 1, or 2. It can also be configured in over 40 singleended configurations, with gains ranging.


Analog Devices AD8271

from −2 to +3. The AD8271 comes in a 10-lead MSOP package. The AD8271 operat es on both single and dual supplies and requires only a 2.6 mA maximum supply current. It is specified over the indus trial temperature range of −40°C to +85°C and is fully RoHS compliant. For a dual channel version of the AD8271, see the AD8270 data sheet. Table 1. Di fference Amplifiers by C.

Part

AD8271

Description

Programmable Gain Precision Difference Amplifier



Feature


www.DataSheet4U.com Programmable Gain P recision Difference Amplifier AD8271 FU NCTIONAL BLOCK DIAGRAM 10kΩ P1 1 10k 2 FEATURES With no external resisto rs Difference amplifier, gains of ½, 1 , or 2 Single-ended amplifier: over 40 different gains Set reference voltage a t midsupply Excellent ac specifications 15 MHz bandwidth 30 V/μs slew rate Hi gh accuracy dc performan.
Manufacture

Analog Devices

Datasheet
Download AD8271 Datasheet




 AD8271
www.DataSheet4U.com
FEATURES
With no external resistors
Difference amplifier, gains of ½, 1, or 2
Single-ended amplifier: over 40 different gains
Set reference voltage at midsupply
Excellent ac specifications
15 MHz bandwidth
30 V/μs slew rate
High accuracy dc performance
0.08% maximum gain error
10 ppm/°C maximum gain drift
80 dB minimum CMRR (gain of 2)
10-lead MSOP package
Supply current: 2.6 mA
Supply range: ±2.5 V to ±18 V
APPLICATIONS
ADC driver
Instrumentation amplifier building blocks
Level translators
Automatic test equipment
High performance audio
Sine/cosine encoders
GENERAL DESCRIPTION
The AD8271 is a low distortion, precision difference amplifier
with internal gain setting resistors. With no external components,
it can be configured as a high performance difference amplifier
with gains of ½, 1, or 2. It can also be configured in over 40 single-
ended configurations, with gains ranging from −2 to +3.
The AD8271 comes in a 10-lead MSOP package. The AD8271
operates on both single and dual supplies and requires only a
2.6 mA maximum supply current. It is specified over the industrial
temperature range of −40°C to +85°C and is fully RoHS compliant.
For a dual channel version of the AD8271, see the AD8270
data sheet.
Programmable Gain
Precision Difference Amplifier
AD8271
FUNCTIONAL BLOCK DIAGRAM
P1 1
2
P2
P3 3
P4 4
10k
10k
20k
20k
10k
10k
10k
10 N3
9
N2
8 N1
OUT
7
–VS 5
AD8271
Figure 1.
6 +VS
Table 1. Difference Amplifiers by Category
High
Speed
AD8270
AD8273
AD8274
AMP03
High
Voltage
AD628
AD629
Single-Supply
Unidirectional
AD8202
AD8203
Single-Supply
Bidirectional
AD8205
AD8206
AD8216
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
©2009 Analog Devices, Inc. All rights reserved.




 AD8271
AD8271www.DataSheet4U.com
TABLE OF CONTENTS
Features .............................................................................................. 1 
Applications....................................................................................... 1 
Functional Block Diagram .............................................................. 1 
General Description ......................................................................... 1 
Revision History ............................................................................... 2 
Specifications..................................................................................... 3 
Difference Amplifier Configurations ........................................ 3 
Absolute Maximum Ratings............................................................ 6 
Thermal Resistance ...................................................................... 6 
Maximum Power Dissipation ..................................................... 6 
ESD Caution.................................................................................. 6 
Pin Configuration and Function Description .............................. 7 
Typical Performance Characteristics ............................................. 8 
Operational Amplifier Plots...................................................... 14 
Theory of Operation ...................................................................... 15 
REVISION HISTORY
1/09—Revision 0: Initial Version
Circuit Information.................................................................... 15 
Driving the AD8271................................................................... 15 
Power Supplies ............................................................................ 15 
Input Voltage Range................................................................... 15 
Applications Information .............................................................. 16 
Difference Amplifier Configurations ...................................... 16 
Single-Ended Configurations ................................................... 17 
Kelvin Measurement .................................................................. 18 
Instrumentation Amplifier........................................................ 18 
Driving Cabling .......................................................................... 19 
Driving an ADC ......................................................................... 19 
Outline Dimensions ....................................................................... 20 
Ordering Guide .......................................................................... 20 
Rev. 0 | Page 2 of 20




 AD8271
www.DataSheet4U.com
AD8271
SPECIFICATIONS
DIFFERENCE AMPLIFIER CONFIGURATIONS
VS = ±5 to ±15 V, VREF = 0 V, G = 1, RLOAD = 2 kΩ, TA = 25°C, specifications referred to input (RTI), unless otherwise noted.
Table 2.
Parameter
DYNAMIC PERFORMANCE
Bandwidth
Slew Rate
Settling Time to 0.01%
Settling Time to 0.001%
NOISE/DISTORTION
Harmonic Distortion + Noise
Voltage Noise1
GAIN
Gain Error
Gain Drift
Gain Nonlinearity
INPUT CHARACTERISTICS
Offset2
Average Temperature Drift
Common-Mode Rejection Ratio
Power Supply Rejection Ratio
Input Voltage Range3
Common-Mode Resistance4
Bias Current
OUTPUT CHARACTERISTICS
Output Swing
Short-Circuit Current Limit
POWER SUPPLY
Supply Current
Conditions
VS = ±15, 10 V step on output
VS = ±5, 5 V step on output
VS = ±15, 10 V step on output
VS = ±5, 5 V step on output
VS = ±15, f = 1 kHz,
VOUT = 10 V p-p, RLOAD = 600 Ω
VS = ±5, f = 1 kHz,
VOUT = 10 V p-p, RLOAD = 600 Ω
f = 0.1 Hz to 10 Hz
f = 1 kHz
VOUT = 10 V p-p
TA = −40°C to +85°C
VOUT = 10 V p-p,
RLOAD = 10 kΩ, 2 kΩ, 600 Ω
TA = −40°C to +85°C
DC to 1 kHz
Inputs grounded
VS = ±15
VS = ±15, TA = −40°C to +85°C
VS = ±5
VS = ±5, TA = −40°C to +85°C
Sourcing
Sinking
TA = −40°C to +85°C
B Grade
Min Typ Max
15
30
700 800
550 650
750 900
600 750
110
141
1.5
38
0.02
12
1
A Grade
Min Typ Max
15
30
700 800
550 650
750 900
600 750
110
141
1.5
38
0.05
1 10
1
Unit
MHz
V/μs
ns
ns
ns
ns
dB
dB
μV p-p
nV/√Hz
%
ppm/°C
ppm
80
−VS − 0.4
300
2
92
2
10
600
10
+VS + 0.4
500
74
−VS − 0.4
300
2
92
2
10
1000
10
+VS + 0.4
500
μV
μV/°C
dB
μV/V
V
nA
−13.8
−13.7
−4
−3.9
+13.8
+13.7
+4
+3.9
100
60
−13.8
−13.7
−4
−3.9
+13.8
+13.7
+4
+3.9
100
60
V
V
V
V
mA
mA
2.3 2.6
3.2
2.3 2.6
3.2
mA
mA
1 Includes amplifier voltage and current noise, as well as noise of internal resistors.
2 Includes input bias and offset errors.
3 At voltages beyond the rails, internal ESD diodes begin to turn on. In some configurations, the input voltage range may be limited by the internal op amp (see the
Input Voltage Range section for details).
4 Internal resistors, trimmed to be ratio matched, have ±20% absolute accuracy. Common-mode resistance was calculated with both inputs in parallel. The common-
mode impedance at only one input is 2× the resistance listed.
Rev. 0 | Page 3 of 20






Recommended third-party AD8271 Datasheet






@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site (Privacy Policy & Contact)