AD8552A Analog Devices, AD8552A Datasheet

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AD8552A

Manufacturer Part Number
AD8552A
Description
Manufacturer
Analog Devices
Datasheet

Specifications of AD8552A

Case
SOP8
Dc
06+/07+

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a
GENERAL DESCRIPTION
This new family of amplifiers has ultralow offset, drift and bias
current. The AD8551, AD8552 and AD8554 are single, dual and
quad amplifiers featuring rail-to-rail input and output swings. All
are guaranteed to operate from +2.7 V to +5 V single supply.
The AD855x family provides the benefits previously found only
in expensive autozeroing or chopper-stabilized amplifiers. Using
Analog Devices’ new topology these new zero-drift amplifiers
combine low cost with high accuracy. No external capacitors are
required.
With an offset voltage of only 1 V and drift of 0.005 V/ C,
the AD8551 is perfectly suited for applications where error
sources cannot be tolerated. Temperature, position and pres-
sure sensors, medical equipment and strain gage amplifiers
benefit greatly from nearly zero drift over their operating
temperature range. The rail-to-rail input and output swings
provided by the AD855x family make both high-side and low-
side sensing easy.
The AD855x family is specified for the extended industrial/
automotive (–40 C to +125 C) temperature range. The AD8551
single is available in 8-lead MSOP and narrow 8-lead SOIC
packages. The AD8552 dual amplifier is available in 8-lead
narrow SO and 8-lead TSSOP surface mount packages. The
AD8554 quad is available in narrow 14-lead SOIC and 14-lead
TSSOP packages.
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
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
FEATURES
Low Offset Voltage: 1 V
Input Offset Drift: 0.005 V/ C
Rail-to-Rail Input and Output Swing
+5 V/+2.7 V Single-Supply Operation
High Gain, CMRR, PSRR: 130 dB
Ultralow Input Bias Current: 20 pA
Low Supply Current: 700 A/Op Amp
Overload Recovery Time: 50 s
No External Capacitors Required
APPLICATIONS
Temperature Sensors
Pressure Sensors
Precision Current Sensing
Strain Gage Amplifiers
Medical Instrumentation
Thermocouple Amplifiers
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
Fax: 781/326-8703
OUT A
OUT B
OUT A
+IN A
IN A
IN A
IN A
IN A
IN B
IN B
IN A
NC
V
V
V
14-Lead TSSOP
8-Lead TSSOP
NC = NO CONNECT
8-Lead MSOP
(RM Suffix)
(RU Suffix)
(RU Suffix)
AD8551/AD8552/AD8554
1
4
1
7
AD8551
1
AD8554
4
AD8552
Zero-Drift, Single-Supply,
Rail-to-Rail Input/Output
14
8
5
PIN CONFIGURATIONS
8
8
5
Operational Amplifiers
World Wide Web Site: http://www.analog.com
NC
V+
OUT A
NC
V
OUT D
OUT C
V+
OUT B
+IN B
IN D
IN D
IN C
IN C
IN B
OUT A
OUT B
OUT A
+IN A
+IN B
+IN A
+IN A
IN A
IN B
IN A
IN A
V+
© Analog Devices, Inc., 1999
NC
V
V
1
2
3
4
5
6
7
NC = NO CONNECT
8-Lead SOIC
14-Lead SOIC
8-Lead SOIC
1
2
3
4
1
2
3
4
(R Suffix)
(R Suffix)
(R Suffix)
AD8554
AD8551
AD8552
8
8
14
13
12
11
10
7
6
5
7
6
5
9
8
NC
V+
V+
OUT B
OUT A
NC
+IN B
OUT D
+IN D
+IN C
OUT C
V
IN B
IN D
IN C

Related parts for AD8552A

AD8552A Summary of contents

Page 1

... AD8554 quad is available in narrow 14-lead SOIC and 14-lead TSSOP packages. 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 which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices ...

Page 2

AD8551/AD8552/AD8554–SPECIFICATIONS ELECTRICAL CHARACTERISTICS Parameter INPUT CHARACTERISTICS Offset Voltage Input Bias Current Input Offset Current Input Voltage Range Common-Mode Rejection Ratio 1 Large Signal Voltage Gain Offset Voltage Drift OUTPUT CHARACTERISTICS Output Voltage High Output Voltage Low Short Circuit Limit Output ...

Page 3

ELECTRICAL CHARACTERISTICS Parameter INPUT CHARACTERISTICS Offset Voltage Input Bias Current Input Offset Current Input Voltage Range Common-Mode Rejection Ratio 1 Large Signal Voltage Gain Offset Voltage Drift OUTPUT CHARACTERISTICS Output Voltage High Output Voltage Low Short Circuit Limit Output Current ...

Page 4

... ESD(Human Body Model 2,000 V Output Short-Circuit Duration to GND . . . . . . . . . Indefinite Storage Temperature Range RM, RU and R Packages . . . . . . . . . . . . . – +150 C Operating Temperature Range AD8551A/AD8552A/AD8554A . . . . . . . . – +125 C Junction Temperature Range RM, RU and R Packages . . . . . . . . . . . . . – +150 C Lead Temperature Range (Soldering, 60 sec +300 C NOTES 1 Stresses above those listed under Absolute Maximum Ratings may cause perma- nent damage to the device. This is a stress rating only ...

Page 5

Typical Performance Characteristics– 180 V = +2. +1.35V 160 + 140 120 100 2.5 1.5 0.5 0.5 1.5 2.5 OFFSET VOLTAGE – V Figure 1. Input Offset ...

Page 6

AD8551/AD8552/AD8554 800 700 600 500 400 300 200 100 SUPPLY VOLTAGE – V Figure 10. Supply Current vs. Supply Voltage +2. ...

Page 7

V = 1.35V 50pF 50mV Figure 19. Small Signal Transient Response +25 ...

Page 8

AD8551/AD8552/AD8554 140 V = 1.35V SY 120 100 80 60 +PSRR PSRR 100 1k 10k 100k 1M 10M FREQUENCY – Hz Figure 28. PSRR vs. Frequency at 1. 2. ...

Page 9

V = ±5V SY 112 FREQUENCY – kHz Figure 37. Voltage Noise Density from kHz ...

Page 10

AD8551/AD8552/AD8554 FUNCTIONAL DESCRIPTION The AD855x family of amplifiers are high precision rail-to-rail operational amplifiers that can be run from a single supply volt- age. Their typical offset voltage of less than 1 V allows these amplifiers to be easily configured ...

Page 11

V IN OSA + A A Figure 45. Output Phase of the Amplifier Because A is now open and there is no place for C charge, the voltage V at the present time t ...

Page 12

AD8551/AD8552/AD8554 be a specific width, but it should form a continuous loop around both inputs. By setting the guard ring voltage equal to the volt- age at the noninverting input, parasitic capacitance is minimized as well. For further reduction of ...

Page 13

FREQUENCY – kHz Figure 50. Spectral Analysis of AD855x Output in Unity Gain Configuration 100 120 140 ...

Page 14

... Where BW is the bandwidth of interest in Hertz. For a complete treatise on circuit noise analysis, please refer to the 1995 Linear Design Seminar book available from Analog Devices. Output Overdrive Recovery The AD855x amplifiers have an excellent overdrive recovery of only 200 s from either supply rail. This characteristic is particu- ...

Page 15

WITH SNUBBER WITHOUT SNUBBER 4.7nF LOAD Figure 55. Overshoot and Ringing are Substantially Reduced Using a Snubber Network The optimum value for the resistor and capacitor is a function of the load ...

Page 16

AD8551/AD8552/AD8554 AD855x THEN V = OUT Figure 58. Using the AD855x as a Difference Amplifier ...

Page 17

... Input Overvoltage Protection. REV. 0 SPICE Model The SPICE macro-model for the AD855x amplifier is given in Listing 1. This model simulates the typical specifications for the AD855x, and it can be downloaded from the Analog Devices website at http://www.analog.com. The schematic of the macro-model is shown in Figure 63. I (24) ...

Page 18

AD8551/AD8552/AD8554 EOS Figure 63. Schematic of the AD855x SPICE Macro-Model VN1 ...

Page 19

... SPICE macro-model for the AD855x * AD8552 SPICE Macro-model * Typical Values * 7/99, Ver. 1.0 * TAM / ADSC * * Copyright 1999 by Analog Devices * * Refer to “README.DOC” file for License * Statement. Use of this model indicates * your acceptance of the terms and * provisions in the License Statement Node Assignments ...

Page 20

AD8551/AD8552/AD8554 8-Lead MSOP (RM Suffix) 0.122 (3.10) 0.114 (2.90 0.122 (3.10) 0.199 (5.05) 0.114 (2.90) 0.187 (4.75 PIN 1 0.0256 (0.65) BSC 0.120 (3.05) 0.112 (2.84) 0.043 (1.09) 0.006 (0.15) 0.037 (0.94) 0.002 (0.05) 0.018 (0.46) ...

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