TS925 Datasheet, PDF (1/17 Pages) STMicroelectronics – RAIL TO RAIL HIGH OUTPUT CURRENT QUAD OPERATIONAL AMPLIFIER With Standby Mode and Adjustable Phantom Ground

TS925
Rail-to-Rail High Output Current Quad Operational Amplifiers
With Standby Mode and Adjustable Phantom Ground
■ Rail-to-rail input and output
■ Low noise: 9nV/√Hz
■ Low distortion
■ High output current: 80mA (able to drive 32Ω
loads)
■ High-speed: 4MHz, 1.3V/µs
■ Operating from 2.7V to 12V
■ Low input offset voltage: 900µV max. (TS925A)
■ Adjustable phantom ground (V_CC/2)
■ Standby mode
■ ESD internal protection: 2kV
■ Latch-up immunity
Description
The TS925 is a rail-to-rail quad BiCMOS
operational amplifier optimized and fully specified
for 3V and 5V operation.
High output current allows low load impedances to
be driven. An internal low impedance phantom
ground eliminates the need for an external
reference voltage or biasing arrangement.
The TS925 exhibits very low noise, low distortion
and high output current making this device an
excellent choice for high quality, low voltage or
battery operated audio/telecom systems.
The device is stable for capacitive loads up to
500pF. When the STANDBY mode is enabled, the
total consumption drops to 6µA (V_CC = 3V).
Applications
■ Headphone amplifier
■ Soundcard amplifier, piezoelectric speaker
■ MPEG boards, multimedia systems...
N
DIP16
(Plastic Package)
D
SO-16
(Plastic Micropackage)
P
TSSOP16
(Thin Shrink Small Outline Package)
Pin connections (top view)
Output 1 ₁
Inverting
Input 1 ²
Non-inverting
Input 1 ³
V_CC+ ₄
Non-inverting
Input 2
5
Inverting
Input 2
6
Output 2 7
Phantom ground 8
-+
+-
16 Output 4
15 ^Inverting
Input 4
14 ^{Non-inverting}
Input 4
13 V_CC^-
12 ^{Non-inverting}
Input 3
11 ^Inverting
Input 3
10 Output 3
9 Stdby
■ Cordless telephones and portable
communication equipment
■ Line driver, buffer
■ Instrumentation with low noise as key factor
November 2005
Rev 2
1/17
www.st.com
17