WT272C/WT274C
Data Sheet Rev. 1.1
ABSOLUTE MAXIMUM RATINGS
Parameter
Min.
Max.
Units
0
8.5
V+ + 0.3
150
100
Unlimited
V
V
DC supply voltage (V+
Input and output voltage
Storage temperature
Ambient temperature with power applied
Duration of output short circuit
- V- )
V- - 0.3
-65
-20
OC
OC
*Note: Stresses above those listed may cause permanent damage to the devices
RECOMMENDED OPERATING CONDITION
Symbol
Parameter
Supply Voltage
Output Source Current
Output Sink Current
Ambient Temperature
Condition
Min.
Typ.
Max. Units
VSUPPLY
ISOURCE
ISINK
1.2
7
5
V
mA
mA
OC
9
Ta
0
85
ELECTRICAL CHARACTERISTICS
(V+ = 5V, V
Symbol
VOS
-
= 0V, Ta = +25 OC unless otherwise specified)
Parameter
Condition
Min.
Typ.
Max. Units
Input Offset Voltage
2
0.7
5
mV
mV/OC
êVOS/êT Average
Temperature
Coefficient of Input Offset
Voltage
IOS
Input Offset Current
Input Bias Current
Input Common Mode Voltage
Output Voltage Swing
1
1
pA
pA
V
IBIAS
VICOM
VOUT
Ta=25 OC
Vin =10mV
RL=1MW connected to V
Vin =10mV
RL=100KW connected to V
Vin =10mV
RL=10KW connected to V
Vin = -10mV
0
4.9
V+ -1.3
4.99
4.95
4.75
0.5
V
-
V
V
-
-
0.7
V
RL=1MW, connected to V+
Vin = -10mV
RL=100KW connected to V+
VO= 1V to 4V, Vi=1.4V 20
RL=1MW
0.65
100
V
AVOL
Large Signal Voltage Gain
Unit Gain Bandwidth
Common Mode Rejection Ratio V O= 1V, Vi=0 to 3.5V
Power Supply Rejection Ratio V O= 1V
V/mV
GBW
CMRR
PSRR
SR
0.1
80
90
MHz
dB
dB
RL=1MW, CL=50pF
60
60
Slew Rate
AVOL=1, CL=100pF
VIN=5VP-P
0.03
V/ms
ISUPPLY
j m
en
Supply Current (per amplifier)
Phase Margin at Unit Gain
Input Equivalent Noise Voltage
Channel Separation
5
55
50
120
9
mA
Degree
nV/ÖHz
dB
RL=1MW, CL=50pF
f=1KHz, Rs=100W
AVOL=100
VO1/VO2
Weltrend Semiconductor, Inc.
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