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Электронный компонент: G1212

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Ver 1.0
Jul 30, 2001
TEL: 886-3-5788833
http://www.gmt.com.tw
1
G1212
Global Mixed-mode Technology Inc.
Rail-to-Rail I/O OP Amp
Features
Single-Supply Operation: 2.0V to 5.5V
Low Supply Current: 700 A
Wide Bandwidth: 3 MHz
Slew Rate: 1 V/s
No Phase Reversal
Unity Gain Stable
Small, 5-Pin SOT23-5 Package available
Applications
Battery-Powered Instruments
Portable Equipment
Audio Signal Conditioning
Multimedia Audio
ASIC Input or Output Amplifier
General Description
The G1212 is a rail-to-rail input and output sin-
gle-supply amplifiers. This high output current makes
these amplifiers excellent for driving either resistive or
capacitive loads. AC performance is very good with
3.0MHz bandwidth.
The very low input bias currents enable the G1212 to
be used for integrators and diode amplification and
other applications requiring low input bias current. The
supply current is only 700A per amplifier at 3.0V,
allowing low current applications to control high cur-
rent loads.
Applications include audio amplification for computers,
sound ports, sound cards and set-top boxes. The
G1212 is very stable and capable of driving capacitive
loads. The ability to swing rail-to-rail at the inputs and
outputs enables designers to buffer CMOS ADC/DACs,
ASICs or other wide output swing devices in sin-
gle-supply systems.
Ordering Information
PART TEMP.
RANGE
PIN-PACKAGE
G1212
0C to 70C
SOT23-5
Pin Configuration
Typical Application Circuit
5
4
IN+
V
SS
1
3
2
G1212
V
DD
IN-
OUT
SOT23-5
+
-
G121
5
3
4
1
RL
2K
OUT
IN
+
-
G1212
+
-
VDD
2
5
4
IN+
V
SS
1
3
2
G1212
V
DD
IN-
OUT
SOT23-5
+
-
G121
5
3
4
1
RL
2K
OUT
IN
+
-
G1212
+
-
VDD
2
G121
5
3
4
1
RL
2K
OUT
IN
+
-
G1212
+
-
VDD
2
Ver 1.0
Jul 30, 2001
TEL: 886-3-5788833
http://www.gmt.com.tw
2
G1212
Global Mixed-mode Technology Inc.
Absolute Maximum Ratings
(Note1)
SYMBOL PARAMETER
CONDITIONS
MIN.
MAX.
UNIT
V
DD
Supply
voltage
0
7.0
V
T
stg
Storage
temperature
-65 +150 C
T
amb
Operating ambient temperature
0
+70
C
Notes:
1. Absolute Maximum Ratings are limits beyond which damage to the device may occur.
Thermal Characteristics
SYMBOL PARAMETER VALUE
UNIT
R
th j-a
Thermal resistance from junction to ambient in free air SOT23-5
240
C/W
Electrical Characteristics
V
DD
= 2V; V
SS
= 0V ; T
amb
= 25C; R
L
>1M
; unless otherwise specified.
SYMBOL PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Supplies
I
DD
Supply current
no load
-
0.13
0.4
mA
P
tot
Total power dissipation
no load
-
0.26
0.8
mW
DC Characteristics
V
I (OS)
Input offset voltage
1mV
15
mV
V
CM
Common mode voltage
0
-
2.0
V
I
B
Input Bias Current
0.05
nA
I
OS
Input Bias Current Offset
0.05
nA
R
IN
Input Resistance
1000
-
M
A
V
Open Loop Gain
95
-
dB
I
O
Maximum output current
V
OUT
=
V
IN
x 90%
-
12 - mA
V
O
Output Voltage Swing
R
L
= 2k
0.04
-
1.96
V
PSRR
Power supply rejection ratio
50
-
dB
CMRR
Common-Mode Rejection Ratio
55
dB
AC Characteristics
GBWP
Gain-Bandwidth Product
Open-loop; No Load
-
1.0
-
MHz
SR Slew-Rate
Measured from 20% to 80% of
2V
P-P
step
0.3
V/s
PM Phase
Margin
- 60 - deg
Ver 1.0
Jul 30, 2001
TEL: 886-3-5788833
http://www.gmt.com.tw
3
G1212
Global Mixed-mode Technology Inc.
Electrical Characteristics
V
DD
= 3V; V
SS
= 0V ; T
amb
= 25C; R
L
=1M
; unless otherwise specified.
SYMBOL PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Supplies
I
DD
Supply current
no load
-
0.7
2.1
mA
P
tot
Total power dissipation
no load
-
2.1
6.3
mW
DC Characteristics
V
I (OS)
Input offset voltage
1.5
15
mV
V
CM
Common mode voltage
0
-
3.0
V
I
B
Input Bias Current
0.05
nA
I
OS
Input Bias Current Offset
0.05
nA
R
IN
Input Resistance
1000
-
M
A
V
Open Loop Gain
90
-
dB
I
O
Maximum output current
V
OUT
=
V
IN
x 90%
-
27 - mA
V
O
Output Voltage Swing
R
L
= 2k
0.04
-
2.96
V
PSRR
Power supply rejection ratio
65
-
dB
CMRR
Common-Mode Rejection Ratio
55
dB
AC Characteristics
GBWP
Gain-Bandwidth Product
Open-loop; No Load
-
3.0
-
MHz
SR Slew-Rate
Measured from 20% to 80% of
5V
P-P
step
1
V/s
PM Phase
Margin
- 60 - deg


Electrical Characteristics
V
DD
= 5V; V
SS
= 0V ; T
amb
= 25C; R
L
= 1M
; unless otherwise specified.
SYMBOL PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Supplies
I
DD
Supply current
no load
-
0.9
2.4
mA
P
tot
Total power dissipation
no load
-
4.5
12
mW
DC Characteristics
V
I (OS)
Input offset voltage
3
15
mV
V
CM
Common mode voltage
0
-
5.0
V
I
B
Input Bias Current
0.05
nA
I
OS
Input Bias Current Offset
0.05
nA
R
IN
Input Resistance
1000
-
M
A
V
Open Loop Gain
65
-
dB
I
O
Maximum output current
V
OUT
=
V
IN
x 90%
-
60 - mA
V
O
Output Voltage Swing
R
L
= 2k
0.05
-
4.95
V
PSRR
Power supply rejection ratio
65
-
dB
CMRR
Common-Mode Rejection Ratio
45
dB
AC Characteristics
GBWP
Gain-Bandwidth Product
Open-loop; No Load
-
13
-
MHz
SR Slew-Rate
Measured from 10% to 90% of
5V
P-P
step
6
V/s
PM Phase
Margin
- 60 - deg
Ver 1.0
Jul 30, 2001
TEL: 886-3-5788833
http://www.gmt.com.tw
4
G1212
Global Mixed-mode Technology Inc.
Large Signal Transient Response Figure
Test Condition
T
A
= 25C, A
V
= 1 , R
L
= 2K
Vs = 1V
Vs = 2.5V
Vs = 1.5V
operation with beyond-the Rail input
Ver 1.0
Jul 30, 2001
TEL: 886-3-5788833
http://www.gmt.com.tw
5
G1212
Global Mixed-mode Technology Inc.
Small Signal Transient Response Figure
Test Condition
T
A
= 25C, A
V
= 1 , R
L
= 2k
Vs = 1V
Vs = 1.5V
Vs = 2.5V
Open-Loop Gain & Phase vs. Frequency
0
10
20
30
40
50
60
70
80
90
100
0.1
1
10
100
1000
10000
Frequency - kHZ
Gain - dB
-150
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
Phase - degree
PSRR
0
10
20
30
40
50
60
70
0.1
1
10
100
1000
Frequency - kHZ
Power Supply Rejection - dB
PSRR +
PSRR -
Vs=1.5V
Vs=1.5V
Test Condition: Vs =1.5V,T
A
= 25C
Test Condition: Vs =1.5V,T
A
= 25C