AD8276ARMZ-RL Analog Devices Inc, AD8276ARMZ-RL Datasheet

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AD8276ARMZ-RL

Manufacturer Part Number
AD8276ARMZ-RL
Description
Single G=1 LowPower,WideInputRange
Manufacturer
Analog Devices Inc
Datasheet

Specifications of AD8276ARMZ-RL

Design Resources
High Precision, Low Cost Current Sources Using AD8276 and AD8603 (CN0099)
Amplifier Type
Differential
Number Of Circuits
1
Output Type
Rail-to-Rail
Slew Rate
1.1 V/µs
Gain Bandwidth Product
550kHz
Voltage - Input Offset
100µV
Current - Supply
200µA
Current - Output / Channel
15mA
Voltage - Supply, Single/dual (±)
2 V ~ 36 V, ±2 V ~ 18 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
-3db Bandwidth
-
Current - Input Bias
-
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
FEATURES
Wide input range
Rugged input overvoltage protection
Low supply current: 220 μA maximum
Low power dissipation: 0.55 mW at V
Bandwidth: 550 kHz
CMRR: 86 dB minimum, dc to 5 kHz
Low offset voltage drift: ±2 μV/°C maximum (AD8276B)
Low gain drift: 1 ppm/°C maximum (AD8276B)
Enhanced slew rate: 1.1 V/μs
Wide power supply range:
8-lead SOIC and MSOP packages
APPLICATIONS
Voltage measurement and monitoring
Current measurement and monitoring
Instrumentation amplifier building block
Differential output instrumentation amplifier
Portable, battery-powered equipment
Medical instrumentation
Test and measurement
GENERAL DESCRIPTION
The AD8276 is a general-purpose unity-gain difference
amplifier intended for precision signal conditioning in power
critical applications that require both high performance and
low power. The AD8276 provides exceptional common-mode
rejection ratio (86 dB) and high bandwidth while amplifying
signals well beyond the supply rails. The on-chip resistors are
laser-trimmed for excellent gain accuracy and high common-
mode rejection ratio. They also have outstanding gain
temperature coefficient.
The amplifier’s common-mode range extends to almost double
the supply voltage, making it ideal for single-supply applications
that require a high common-mode voltage range.
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.
Trademarks and registered trademarks are the property of their respective owners.
Single supply: 2.5 V to 36 V
Dual supplies: ±2 V to ±18 V
S
= 2.5 V
Cost Unity-Gain Difference Amplifier
Low Power, Wide Supply Range, Low
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
Table 1. Difference Amplifiers by Category
Low
Distortion
AD8270
AD8271
AD8273
AD8274
AMP03
1
The AD8276 is unity-gain stable. Intended as a difference
amplifier, it can also be connected in a high precision, single-
ended configuration with G = −1, +1, +2, or +½.
The AD8276 operates on single supplies (2.5 V to 36 V) or
dual supplies (±2 V to ±18 V). The maximum quiescent supply
current is 220 μA, which makes it ideal for battery operated and
portable systems.
The AD8276 is available in the space-saving 8-lead MSOP
and SOIC packages. It is specified for performance over the
industrial temperature range of −40°C to +85°C and is fully
RoHS compliant.
U = unidirectional, B = bidirectional.
FUNCTIONAL BLOCK DIAGRAM
–IN
+IN
High
Voltage
AD628
AD629
2
3
40kΩ
40kΩ
©2009 Analog Devices, Inc. All rights reserved.
Current Sensing
AD8202
AD8203
AD8205
AD8206
AD8216
Figure 1.
+VS
–VS
7
4
AD8276
40kΩ
40kΩ
(U)
(U)
(B)
(B)
(B)
1
1
1
1
1
5
6
1
SENSE
OUT
REF
AD8276
www.analog.com
Low Power
AD8276

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AD8276ARMZ-RL Summary of contents

Page 1

FEATURES Wide input range Rugged input overvoltage protection Low supply current: 220 μA maximum Low power dissipation: 0. Bandwidth: 550 kHz CMRR minimum kHz Low offset voltage drift: ±2 μV/°C maximum ...

Page 2

AD8276 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 Functional Block Diagram .............................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 Absolute Maximum Ratings ............................................................ 5 Thermal Resistance ...................................................................... 5 Maximum Power Dissipation ..................................................... 5 ...

Page 3

SPECIFICATIONS V = ± ± 25° REF A Table 2. Parameter Conditions INPUT CHARACTERISTICS 1 System Offset vs. Temperature T A Average Temperature T A Coefficient Vv. Power Supply ...

Page 4

AD8276 < midsupply, T ± S REF otherwise noted. Table 3. Parameter Conditions INPUT CHARACTERISTICS System Offset 1 vs. Temperature T = −40°C to +85°C A Average Temperature T = −40°C ...

Page 5

ABSOLUTE MAXIMUM RATINGS Table 4. Parameter Supply Voltage Maximum Voltage at Any Input Pin Minimum Voltage at Any Input Pin Storage Temperature Range Specified Temperature Range Package Glass Transition Temperature (T Stresses above those listed under Absolute Maximum Ratings may ...

Page 6

AD8276 PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS REF AD8276 –IN + TOP VIEW +IN OUT 3 6 (Not to Scale) –VS SENSE CONNECT Figure 3. MSOP Pin Configuration Table 6. Pin ...

Page 7

TYPICAL PERFORMANCE CHARACTERISTICS V = ± 25° kΩ connected to ground difference amplifier configuration, unless otherwise noted 2042 MEAN: –2.28 600 SD: 32.7 500 400 300 200 ...

Page 8

AD8276 120 100 100 1k FREQUENCY (Hz) Figure 11. CMRR vs. Frequency 120 100 80 60 +PSRR 100 1k FREQUENCY (Hz) Figure 12. PSRR vs. Frequency 30 20 ...

Page 9

S –0.2 –0.4 –0.6 –0.8 –1.0 –1.2 +1.2 +1.0 +0.8 +0.6 +0.4 +0.2 – SUPPLY VOLTAGE (±V Figure 17. Output Voltage Swing vs. Supply Voltage and Temperature kΩ L ...

Page 10

AD8276 SHORT –5 –10 I SHORT– –15 –20 –50 –30 – TEMPERATURE (°C) Figure 23. Short-Circuit Current vs. Temperature 1.4 1.2 –SR 1.0 +SR 0.8 0.6 0.4 0.2 0 ...

Page 11

V = ±15V ± 100 1k 10k FREQUENCY (Hz) Figure 29. Maximum Output Voltage vs. Frequency 4.5 4.0 3.5 3.0 2 ...

Page 12

AD8276 THEORY OF OPERATION +VS 7 AD8276 40kΩ 40kΩ IN– 2 40kΩ 40kΩ 3 IN+ 4 –VS Figure 35. Functional Block Diagram CIRCUIT INFORMATION The AD8276 consists of a low power, low noise op amp and four laser-trimmed on-chip resistors. ...

Page 13

APPLICATIONS INFORMATION CONFIGURATIONS The AD8276 can be configured in several ways; see Figure 38 to Figure 42. All of these configurations have excellent gain accuracy and gain drift because they rely on the internal matched resistors. Note that Figure 39 ...

Page 14

AD8276 INSTRUMENTATION AMPLIFIER The AD8276 can be used as a building block for a low power, low cost instrumentation amplifier. An instrumentation amplifier provides high impedance inputs and delivers high common- mode rejection. Combining the AD8276 with an Analog Devices ...

Page 15

OUTLINE DIMENSIONS 0.25 (0.0098) 0.10 (0.0040) COPLANARITY 3.20 3.00 2.80 5. 3.20 4.90 3.00 4.65 2. PIN 1 0.65 BSC 0.95 0.85 1.10 MAX 0.75 0.15 0.38 0.23 0.00 0.22 0.08 COPLANARITY SEATING 0.10 PLANE COMPLIANT ...

Page 16

... AD8276BRZ-RL 1 AD8276ARMZ −40°C to +85°C 1 −40°C to +85°C AD8276ARMZ-R7 1 −40°C to +85°C AD8276ARMZ-RL 1 −40°C to +85°C AD8276BRMZ 1 −40°C to +85°C AD8276BRMZ-R7 1 AD8276BRMZ-RL −40°C to +85° RoHS Compliant Part. ...

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