OPA445BM Datasheet, PDF (1/25 Pages) Texas Instruments – High Voltage FET-Input OPERATIONAL AMPLIFIER

OPA445
SBOS156B − MARCH 1987 − REVISED APRIL 2008
High Voltage FET-Input
OPERATIONAL AMPLIFIER
FEATURES
D WIDE-POWER SUPPLY RANGE:
±10V to ±45V
D HIGH SLEW RATE: 15V/µs
D LOW INPUT BIAS CURRENT: 10pA
D STANDARD-PINOUT TO-99, DIP, SO-8
PowerPAD, AND SO-8 SURFACE-MOUNT
PACKAGES
APPLICATIONS
D TEST EQUIPMENT
D HIGH-VOLTAGE REGULATORS
D POWER AMPLIFIERS
D DATA ACQUISITION
D SIGNAL CONDITIONING
D AUDIO
D PIEZO DRIVERS
DESCRIPTION
The OPA445 is a monolithic operational amplifier capable
of operation from power supplies up to ±45V and output
currents of 15mA. It is useful in a wide variety of
applications requiring high output voltage or large
common-mode voltage swings.
The OPA445’s high slew rate provides wide power-
bandwidth response, which is often required for
high-voltage applications. FET input circuitry allows the
use of high-impedance feedback networks, thus minimiz-
ing their output loading effects. Laser trimming of the input
circuitry yields low input offset voltage and drift.
The OPA445 is available in standard pinout TO-99, DIP-8,
and SO-8 surface-mount packages as well as an SO-8
PowerPAD package for reducing junction temperature. It
is fully specified from −25°C to +85°C and operates from
−55°C to +125°C. A SPICE macromodel is available for
design analysis (from www.ti.com).
Offset
Trim ¹
OPA445
NC
8
7 ^V+
−In 2
6 Output
+In ³
5 Offset
4
Trim
V−
Case is connected to V−
TO−99
OPA445
Offset Trim 1
−In 2
+In 3
V− 4
8 NC
7 ^V+
6 Output
5 Offset Trim
DIP−8, SO−8, SO−8 PowerPAD
NC = No internal connection;
leave NC floating or connect to GND, V+, or V−.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments
semiconductor products and disclaimers thereto appears at the end of this data sheet.
PowerPAD is a trademark of Texas Instruments, Inc. All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date. Products
conform to specifications per the terms of Texas Instruments standard warranty.
Production processing does not necessarily include testing of all parameters.
Copyright  1987−2008, Texas Instruments Incorporated
www.ti.com