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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
Applications
„ Headphone Driver
„ Portable Equipment
„ Battery-Powered Equipment
„ Multimedia Audio
„ ASIC Input or Output Amplifier
„ Sensor Amplifier
„ Low Power/Low Voltage Applications
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.
Ordering Information
ORDER
NUMBER
MARKING
G1244D2U
G1244
Note: D2: TSSOP-14
U: Tape & Reel
TEMP.
RANGE
-40°C to 85°C
PACKAGE
(Pb free)
TSSOP-14
Pin Configuration
Typical Application Circuit
G1244
VOUTA 1
VINA- 2
14 VOUTD
13 VIND-
VINA+ 3 +
+ 12 VIND+
VDD 4
11 VSS
VINB+ 5
VINB- 6
VOUTB 7
+
10 VINC+
+
9 VINC-
8 VOUTC
TSSOP-14
INA +
VDD
4
3
+
G1244
2-
11
1
OUTA
RL
2k
Ver: 1.5
Nov 12, 2008
TEL: 886-3-5788833
http://www.gmt.com.tw
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