Global Mixed-mode Technology Inc.
G1244
Quad Rail-to-Rail I/O, High-Slew-Rate OP Amp
Features
+3V to +5.5V Single-Supply Operation
Input / Output Rail-to-Rail
Low input current
High output driving capacity
Low Quiescent Current: 2mA @ 5V
High Slew rate 6V/µs
High Gain-Bandwidth Product 2.5MHz
High Open Loop Gain 95dB
High PSRR 70dB
General Description
G1244 is a input/output rail-to-rail Operational Ampli-
fier. It can be operated from +3V to +5.5V single sup-
ply or from
±
1.5V to
±
2.75 dual supply. G1244 can
drive 66mA into resistor loads to within 10% power rail
each amplifier. AC performance is very excellent with
2.5MHz bandwidth, 6V/µs Slew Rate, 95dB open loop
gain, 60 degree phase margin and low distortion.
Supply current of G1244 is only 500µA per Amplifier. It
is very suitable for low current consumption applica-
tions to control high current loads. Applications include
audio amplification for computers, sound ports, sound
cards and set-top boxes.
G1244 is available in 14-pins TSSOP package.
Applications
Headphone Driver
Portable Equipment
Battery-Powered Equipment
Multimedia Audio
ASIC Input or Output Amplifier
Sensor Amplifier
Low Power/Low Voltage Applications
Ordering Information
ORDER
NUMBER
G1244D2U
MARKING
G1244
TEMP.
RANGE
0°C to 85°C
PACKAGE
(Pb free)
TSSOP-14
Note: D2: TSSOP-14
U: Tape & Reel
Pin Configuration
Typical Application Circuit
G1244
VOUTA
VINA-
VINA+
VDD
VINB+
VINB-
VOUTB
1
2
3
4
5
+
+
+
+
14
13
12
VOUTD
VDD
VIND-
VIND+
INA+
4
3
+
11 VSS
10
9
8
VINC+
VINC-
VOUTC
G1244
2
-
11
1
OUTA
RL
2K
6
7
TSSOP-14
Ver: 1.3
Sep 30, 2005
TEL: 886-3-5788833
http://www.gmt.com.tw
1
GMT [ GLOBAL MIXED-MODE TECHNOLOGY INC ]
