OP450GRU AD [Analog Devices], OP450GRU Datasheet

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OP450GRU

Manufacturer Part Number
OP450GRU
Description
CMOS Single-Supply Rail-to-Rail Input/Output Operational Amplifiers
Manufacturer
AD [Analog Devices]
Datasheet
1.OP450GRU.pdf (16 pages)
a
GENERAL DESCRIPTION
The OP250 and OP450 are dual and quad CMOS single-supply,
amplifiers featuring rail-to-rail inputs and outputs. Both are guar-
anteed to operate from a +2.7 V to +5 V single supply.
These amplifiers have very low input bias currents. Outputs are
capable of driving 100 mA loads and are stable with capacitive
loads. Supply current is less than 1 mA per amplifier.
Applications for these amplifiers include portable medical
equipment, safety and security, and interface to transducers
with high output impedance.
The ability to swing rail-to-rail at both the input and output en-
ables designers to build multistage filters in single-supply sys-
tems and maintain high signal-to-noise ratios.
The OP250 and OP450 are specified over the extended indus-
trial (–40 C to +125 C) temperature range. The OP250, dual,
is available in 8-lead TSSOP and SO surface mount packages.
The OP450, quad, is available in 14-lead thin shrink small out-
line (TSSOP) and narrow 14-lead SO 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
Single-Supply Operation: 2.7 V to 6 V
High Output Current:
Low Supply Current: 800 A/Amp
Wide Bandwidth: 1 MHz
Slew Rate: 2.2 V/ s
No Phase Reversal
Low Input Currents
Unity Gain Stable
APPLICATIONS
Battery Powered Instrumentation
Medical
Remote Sensors
ASIC Input or Output Amplifier
Automotive
100 mA
Input/Output Operational Amplifiers
CMOS Single-Supply Rail-to-Rail
One Technology Way, P.O. Box 9106, Norwood. MA 02062-9106, U.S.A.
Tel: 781/329-4700
Fax: 781/326-8703
PIN CONFIGURATIONS
OUT A
14-Lead Narrow Body SO
8-Lead Narrow Body SO
–IN A
+IN A
OUT A
OUT B
OUT A
OUT B
OUT A
World Wide Web Site: http://www.analog.com
+IN A
+IN B
–IN A
+IN A
+IN B
–IN B
–IN A
–IN B
–IN A
+IN A
V–
V+
V+
V–
14-Lead TSSOP
8-Lead TSSOP
1
2
3
4
1
2
3
4
5
6
7
(Not to Scale)
(Not to Scale)
(RU-14)
AD8532
1
1
7
7
(RU-8)
1
4
(N-14)
(SO-8)
OP250
OP450
OP450
OP250
OP250/OP450
14
14
8
8
8
5
8
7
6
5
14
13
12
11
10
© Analog Devices, Inc., 1997
9
8
OUT D
–IN D
+IN D
V–
+IN C
–IN C
OUT C
V+
OUT B
–IN B
+IN B
V+
OUT B
–IN B
+IN B
OUT D
–IN D
+IN D
V–
+IN C
–IN C
OUT C

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OP450GRU Summary of contents

Page 1

FEATURES Single-Supply Operation: 2 High Output Current: 100 mA Low Supply Current: 800 A/Amp Wide Bandwidth: 1 MHz Slew Rate: 2 Phase Reversal Low Input Currents Unity Gain Stable APPLICATIONS Battery Powered ...

Page 2

OP250/OP450–SPECIFICATIONS ELECTRICAL CHARACTERISTICS Parameter INPUT CHARACTERISTICS Offset Voltage Input Bias Current Input Offset Current Input Voltage Range Common-Mode Rejection Ratio Large Signal Voltage Gain Offset Voltage Drift Bias Current Drift Offset Current Drift OUTPUT CHARACTERISTICS Output Voltage High Output Voltage ...

Page 3

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

Page 4

... JA in circuit board for surface mount packages +150 +125 C Temperature Model Range +150 C OP250GS – +125 C OP250GRU – +125 C OP450GS – +125 C OP450GRU – +125 C –4– * Units JA JC 158 43 C/W 240 43 C/W 120 36 ...

Page 5

V = +2. + 100 10 1 0.1 0.001 0.01 0.1 1 LOAD CURRENT – mA Figure 1. Output Voltage to Supply Rail vs. Load Current + ...

Page 6

OP250/OP450–Typical Performance Characteristics +5V, + –55 –35 –15 – TEMPERATURE – C Figure 7. Input Offset Current vs. Temperature ...

Page 7

LOAD L 350 300 250 200 150 100 10k 100k 1M FREQUENCY – Hz Figure 13. Closed-Loop Output Impedance vs. Frequency ...

Page 8

OP250/OP450–Typical Performance Characteristics 2µs Figre 19. Small Signal Transient Response 2µs Figure 20. Small Signal Transient Response 2µs Figure 21. Large Signal Transient Response V = 1.35V 50mV ...

Page 9

FREQUENCY = 10kHz 30nV/ Figure 25. Voltage Noise Density vs. Frequency REV. 0 200nV Figure 26. Voltage Noise Density vs. Frequency –9– OP250/OP450 FREQUENCY = 1kHz T ...

Page 10

OP250/OP450 THEORY OF OPERATION The OPx50 family of amplifiers are CMOS rail-to-rail input and output single supply amplifiers designed for low cost and high output current drive. These features make the OPx50 op amps ideal for multimedia and telecom applications. ...

Page 11

OP250 Figure 28. Output Short-Circuit Protection Power Dissipation Although the OPx50 family of amplifiers are able to provide load currents 250 mA, proper attention should be given to not exceed the ...

Page 12

OP250/OP450 be connected from the output to ground in parallel with the ca- pacitive load as shown in Figure 33. The proper snubber net- work on the output can significantly reduce output overshoot, although it will not increase the bandwidth. ...

Page 13

F/0 50k 1/2 OP250 LEFT INPUT 10 F 100k +V 50k 50k 1/2 OP250 RIGHT INPUT 10 F 100k Figure 37. A Single-Supply Stereo Headphone ...

Page 14

OP250/OP450 * OP250 SPICE Macro-Model Typical Values * 10/97, Ver TAM / ADSC * * Node assignments * noninverting input * | inverting input * | | positive supply * | | | negative supply * | | ...

Page 15

SOIC (SO-8) 0.1968 (5.00) 0.1890 (4.80 0.1574 (4.00) 0.2440 (6.20) 0.1497 (3.80 0.2284 (5.80) PIN 1 0.0688 (1.75) 0.0098 (0.25) 0.0532 (1.35) 0.0040 (0.10) 0.0500 0.0192 (0.49) SEATING 0.0098 (0.25) (1.27) 0.0138 (0.35) PLANE BSC ...

Page 16

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