Burr Brown OPA501AM Datasheet

®

High Current, High Power

OPERATIONAL AMPLIFIER

OPA501

FEATURES

● HIGH OUTPUT CURRENT: ±10A Peak

● WIDE POWER SUPPLY RANGE:

±10 to ±40V

● LOW QUIESCENT CURRENT: 2.6mA

● ISOLATED CASE TO-3 PACKAGE

DESCRIPTION

The OPA501 is a high output current operational
amplifier. It can be used in virtually all common op
amp circuits, yet is capable of output currents up to
±10A. Power supply voltages up to ±40V allow very
high output power for driving motors or other electro­mechanical loads.

Safe operating area is fully specified, and user-set
current limits provide protection for both the amplifier
and load. The class-B (zero output stage bias) provides
low quiescent current during small-signal conditions.

This rugged hybrid integrated circuit is packaged in a
metal 8-pin TO-3 package. Both industrial and mili­tary temperature range models are available.

APPLICATIONS

● MOTOR DRIVER

● SERVO AMPLIFIER

● VALVE ACTUATOR

● SYNCRO DRIVER

● PROGRAMMABLE POWER SUPPLY

V+

3

+Output

2

Drive

5

4

1

Current

Sense

8

–Output

Drive

+

R

CL

Output

–

R

CL

6

V–

International Airport Industrial Park • Mailing Address: PO Box 11400 • Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd. • Tucson, AZ 85706

Tel: [phone] • Twx: 910-952-1111 • Cable: BBRCORP • Telex: 066-6491 • FAX: [phone] • Immediate Product Info: [phone]

©

1983 Burr-Brown Corporation PDS-490F Printed in U.S.A. August, 1993

SPECIFICATIONS

ELECTRICAL

At TC = +25°C, VS = ±28V, (OPA501RM, AM); VS = ±34V (OPA501SM, BM) unless otherwise noted.

OPA501RM, AM OPA501SM, BM
PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
RATED OUTPUT

Output Current RL = 2Ω (RM, AM) ±10 * A
Continuous
Output Voltage

DYNAMIC RESPONSE

Bandwidth, Unity Gain Small Signal 1 * MHz
Full Power Bandwidth V
Slew Rate R

INPUT OFFSET VOLTAGE

Initial Offset ±5 ±10 ±2 ±5mV

vs Temperature –25°C < T < +85°C (AM, BM) ±10 ±65 µV/°C

vs Supply Voltage ±35 * µV/V

INPUT BIAS CURRENT

Initial T

vs Temperature ±0.05 * nA/°C
vs Supply Voltage ±0.02 * nA/V

INPUT DIFFERENCE CURRENT

Initial T

vs Temperature –25°C < T < +85°C (AM, BM) ±0.01 nA/°C

OPEN-LOOP GAIN, DC R

R

= 6.5Ω (SM, BM) 98 115 dB

L

INPUT IMPEDANCE

Differential 10 * MΩ
Common-mode 250 * MΩ

INPUT NOISE

Voltage Noise f

f

= 10Hz to 10kHz 5 * µVrms

n

Current Noise f

f

= 10Hz to 10kHz 4.5 * pArms

n

INPUT VOLTAGE RANGE

Common-mode Voltage
Common-mode Rejection f = DC, V

POWER SUPPLY

Rated Voltage ±28 ±34 V
Operating Voltage Range ±10 ±36 * ±40 V
Current, quiescent ±2.6 ±10 * * mA

TEMPERATURE RANGE case
Specification, RM, SM –55 +125 * * °C
AM, BM –25 +85 * * °C
Operating, derated

performance, AM, BM –55 +125 * * °C

Storage –65 +150 * * °C
THERMAL RESISTANCE Steady State

*Specification same as for OPA501RM, AM.
NOTES: (1) Package must be derated based on a junction-to-case thermal resistance of 2.2°C/W or a junction-to-ambient thermal resistance of 30°C/W. (2) Safe

Operating Area and Power Derating Curves must be observed. (3) With ±R
are observed. Output current greater than 10A is not guaranteed. (4) The absolute maximum voltage is 3V less than supply voltage.

(1, 2)

(3)

(3)

RL = 2.6Ω (SM, BM) ±10 * A

IO = 10A peak ±20 ±23 ±26 ±29 V

= 40Vp-p, RL = 8Ω 10 16 * * kHz

O

= 5Ω (RM, AM) 1.35 * V/µs

L

R

= 6.5Ω (SM, BM) 1.35 * v/µs

L

–55°C < T < +125°C (RM, SM) ±10 ±40 µV/°C

= +25°C1540*20nA

CASE

= +25°C ±5 ±10 ±2 ±3nA

CASE

–55°C < T < +125°C (RM, SM) ±0.01 nA/°C

= 5Ω (RM, AM) 94 115 dB

L

= 0.3Hz to 10Hz 3 * µVp-p

n

= 0.3Hz to 10Hz 20 * pAp-p

n

(4)

Linear Operation ±(|VS|–6) ±(|VS|–3) * * V

= ±(|VS|–6) 70 110 80 * dB

CM

θ

JC

= 0. Peak output current is typically greater than 10A if duty cycle and pulse width limitations

SC

2.0 2.2 * * °C/W

The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN assumes
no responsibility for the use of this information, and all use of such information shall be entirely at the user’s own risk. Prices and specifications are subject to change
without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not authorize or warrant
any BURR-BROWN product for use in life support devices and/or systems.

®

OPA501

2