AD8205YRZ Analog Devices Inc, AD8205YRZ Datasheet

IC AMP DIFF 8SOIC

AD8205YRZ

Manufacturer Part Number
AD8205YRZ
Description
IC AMP DIFF 8SOIC
Manufacturer
Analog Devices Inc
Type
Differential Ampr
Datasheet

Specifications of AD8205YRZ

Amplifier Type
Differential
Number Of Circuits
1
Slew Rate
0.5 V/µs
-3db Bandwidth
50kHz
Voltage - Input Offset
2000µV
Current - Supply
2mA
Voltage - Supply, Single/dual (±)
4.5 V ~ 5.5 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Number Of Channels
1
Number Of Elements
1
Power Supply Requirement
Single
Common Mode Rejection Ratio
76dB
Voltage Gain Db
33.98dB
Input Resistance
0.4@5V@-40C TOMohm
Input Offset Voltage
2@5VmV
Single Supply Voltage (typ)
5V
Dual Supply Voltage (typ)
Not RequiredV
Power Supply Rejection Ratio
70dB
Rail/rail I/o Type
No
Single Supply Voltage (min)
4.5V
Single Supply Voltage (max)
5.5V
Dual Supply Voltage (min)
Not RequiredV
Dual Supply Voltage (max)
Not RequiredV
Operating Temp Range
-40C to 125C
Operating Temperature Classification
Automotive
Mounting
Surface Mount
Pin Count
8
Package Type
SOIC
No. Of Amplifiers
1
Bandwidth
50kHz
Supply Voltage Range
4.5V To 5.5V
Supply Current
2mA
Amplifier Case Style
SOIC
No. Of Pins
8
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Output Type
-
Current - Output / Channel
-
Gain Bandwidth Product
-
Current - Input Bias
-
Lead Free Status / RoHS Status
Compliant, Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
AD8205YRZ
Manufacturer:
ADI/亚德诺
Quantity:
20 000
FEATURES
Ideal for current shunt applications
High common-mode voltage range
Gain = 50
Wide operating temperature range: −40°C to +125°C
Bidirectional operation
Available in 8 Lead SOIC
Qualified for automotive applications
EXCELLENT AC AND DC PERFORMANCE
15 μV/°C offset drift
30 ppm/°C gain drift
80 dB CMRR dc to 20 kHz
APPLICATIONS
High-side current sensing in:
GENERAL DESCRIPTION
The AD8205 is a single-supply difference amplifier for
amplifying small differential voltages in the presence of large
common-mode voltages. The operating input common-mode
voltage range extends from −2 V to +65 V. The typical single-
supply voltage is 5 V.
The AD8205 is offered in an 8-Lead SOIC package and rated for
operation from −40°C to +125°C.
Excellent dc performance over temperature keeps errors in the
measurement loop to a minimum. Offset drift is typically less
than 15 μV/°C, and gain drift is typically below 30 ppm/°C.
Rev. B
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.
−2 V to +65 V operating
−25 V to +75 V survival
Motor controls
Transmission controls
Diesel injection controls
Engine management
Suspension controls
Vehicle dynamic controls
DC-to-dc converters
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
The output offset can be adjusted from 0.05 V to 4.8 V with a
5 V supply by using the V
attached to the V+ pin, and V
output is set at half scale. Attaching both pins to GND causes
the output to be unipolar, starting near ground. Attaching both
pins to V+ causes the output to be unipolar starting near V+.
Other offsets can be obtained by applying an external voltage to
the V
REF
Single-Supply 42 V System
1 and V
NC = NO CONNECT
+IN
–IN
NC
FUNCTIONAL BLOCK DIAGRAM
8
1
4
AD8205
REF
©2004–2010 Analog Devices, Inc. All rights reserved.
2 pins.
Difference Amplifier
REF
GND
1 and V
Figure 1.
2
REF
2 attached to the GND pin, the
REF
V+
6
2 pins. With V
AD8205
5
7
3
www.analog.com
OUT
V
V
REF
REF
1
2
REF
1

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AD8205YRZ Summary of contents

Page 1

FEATURES Ideal for current shunt applications High common-mode voltage range − +65 V operating − +75 V survival Gain = 50 Wide operating temperature range: −40°C to +125°C Bidirectional operation Available in 8 Lead SOIC Qualified ...

Page 2

AD8205 TABLE OF CONTENTS Features .............................................................................................. 1 Excellent AC and DC Performance ................................................ 1 Applications ....................................................................................... 1 Functional Block Diagram .............................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 Absolute Maximum Ratings ............................................................ 4 ESD Caution ...

Page 3

SPECIFICATIONS T = operating temperature range unless otherwise noted Table 1. Parameter GAIN Initial Accuracy Accuracy Over Temperature Gain vs. Temperature VOLTAGE OFFSET 1 Offset Voltage (RTI) Over Temperature (RTI) 1 Offset Drift INPUT ...

Page 4

AD8205 ABSOLUTE MAXIMUM RATINGS Table 2. Parameter Rating Supply Voltage 12.5 V Continuous Input Voltage − +75 V Input Transient Survival − +80 V Differential Input Survival − +75 V Reverse Supply Voltage 0.3 ...

Page 5

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Figure 2. Metallization Diagram –IN 1 GND REF CONNECT Figure 3. Pin Configuration Table 3. Pin Function Descriptions Pin No. Mnemonic 1 −IN 2 GND 3 ...

Page 6

AD8205 TYPICAL PERFORMANCE CHARACTERISTICS 500 400 300 200 100 0 –100 TYP. V –200 –300 –400 –500 –40 – TEMPERATURE (°C) Figure 4. Typical Offset Drift 120 110 100 ...

Page 7

Figure 10. Differential Overload Recovery (Rising) 2V/DIV 0.01%/DIV Figure 11. Settling Time 50V/DIV 50mV/DIV 2μs/DIV 40μs/DIV Rev Page AD8205 1μs/DIV Figure 12. Common-Mode Response ...

Page 8

AD8205 THEORY OF OPERATION The AD8205 is a single-supply difference amplifier that uses a unique architecture to accurately amplify small differential current shunt voltages in the presence of rapidly changing common-mode voltages. In typical applications, the AD8205 is used to ...

Page 9

OUTPUT OFFSET ADJUSTMENT The output of the AD8205 can be adjusted for unidirectional or bidirectional operation. UNIDIRECTIONAL OPERATION Unidirectional operation allows the AD8205 to measure currents through a resistive shunt in one direction. The basic modes for unidirectional operation are ...

Page 10

AD8205 EXTERNAL REFERENCE OUTPUT Tying both pins together and to a reference produces an output at the reference voltage when there is no differential input (see Figure 16). The output moves down from the reference voltage when the input is ...

Page 11

APPLICATIONS INFORMATION A typical application for the AD8205 is high-side measurement of a current through a solenoid for PWM control of the solenoid opening. Typical applications include hydraulic transmission control and diesel injection control. Two typical circuit configurations are used ...

Page 12

... AD8205YR-REEL −40°C to +125°C AD8205YR-REEL7 −40°C to +125°C AD8205YRZ −40°C to +125°C AD8205YRZ-RL −40°C to +125°C AD8205YRZ-R7 −40°C to +125°C AD8205WYRZ −40°C to +125°C AD8205WYRZ-RL −40°C to +125°C AD8205WYRZ-R7 −40°C to +125° RoHS Compliant Part ...

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