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Linear Technology Electronic Components Datasheet

LT1493 Datasheet

5MHz/ 3V/us/ Low Power Single Supply/ Dual and Quad Precision Op Amps

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LT1492/LT1493
5MHz, 3V/µs, Low Power
Single Supply, Dual and Quad
Precision Op Amps
FEATURES
s Gain-Bandwidth Product: 5MHz Typ
s Slew Rate: 3V/µs Typ
s Low Supply Current per Amplifier: 0.55mA Max
s Input Offset Voltage: 180µV Max
s Input Offset Voltage Drift: 3µV/°C Max
s Input Offset Current: 20nA Max
s Input Bias Current: 100nA Max
s Open-Loop Gain: 1500V/mV Min (VS = ±15V)
s Low Input Noise Voltage: 16.5nV/Hz
s Low Input Noise Current: 0.14pA/Hz
s Large Output Drive Current: 20mA Min
s Single Supply Operation
Input Voltage Range Includes Ground
Output Swings to Ground While Sinking Current
s Wide Supply Voltage Range: 2.5V to 36V
s Specified on 3.3V, 5V and ±15V
s Dual in 8-Pin PDIP and SO Package
s Quad in a Narrow 16-Pin SO Package
U
APPLICATIONS
s Battery-Powered Systems
Portable Instrumentation
s Active Filters
s Photodiode Amplifiers
s DAC Current to Voltage Amplifiers
DESCRIPTION
The LT®1492/LT1493 are dual/quad, low power, single sup-
ply precision op amps with 5MHz gain-bandwidth product,
3V/µs slew rate and only 450µA of quiescent supply current
per amplifier.
With a maximum input offset voltage of only 180µV, the
LT1492/LT1493 eliminate trims in most systems while pro-
viding high frequency performance not usually found in low
power single supply amplifiers.
The LT1492/LT1493 will operate on any supply greater than
2.5V and less than 36V total, and are specified on single 3.3V,
single 5V and ±15V supplies. Even with their low quiescent
supply current the minimum output drive is 20mA, ideal for
driving low impedance loads.
The inputs can be driven beyond the supplies without
damage or phase reversal of the output. The low operating
voltage and wide input and output range make the LT1492/
LT1493 amplifiers ideal for battery-powered applications.
For applications requiring faster precision single supply
amplifiers, see the 14MHz, 7V/µs LT1211/LT1212, the
28MHz, 12V/µs LT1213/LT1214 or the 23MHz, 50V/µs
LT1215/LT1216.
, LTC and LT are registered trademarks of Linear Technology Corporation.
TYPICAL APPLICATION
Precision AC to DC Converter (Full Wave Rectifier and Filter)
10k
VIN
4.99k
5V
1/2 LT1492
+
+
1/2 LT1492
15k
10k
10k
+
VOUT DC
10µF
6.49k
VS = 5V, 0V
< 1% ERROR FROM 100mV TO 1V, f = 1kHz
10% ERROR AT 10mV, f = 1kHz
1% ERROR AT 5kHz, VIN = 100mVRMS
10% ERROR AT 30kHz, VIN = 100mVRMS 1492/93 TA01
Distribution of Offset Voltage
Drift with Temperature
50
VS = 5V, 0V
LT1492 N8, S8 PACKAGES
40 LT1493 S16 PACKAGE
30
20
10
0
– 2.5 – 2 –1.5 –1 – 0.5 0 0.5 1 1.5 2 2.5
OFFSET VOLTAGE DRIFT WITH TEMPERATURE (µV/°C)
1492/93 G02
1


Linear Technology Electronic Components Datasheet

LT1493 Datasheet

5MHz/ 3V/us/ Low Power Single Supply/ Dual and Quad Precision Op Amps

No Preview Available !

LT1492/LT1493
ABSOLUTE MAXIMUM RATINGS
Total Supply Voltage (V + to V ) .............................. 36V
Input Current ...................................................... ±15mA
Output Short-Circuit Duration (Note 1) ......... Continuous
Operating Temperature Range ................ – 40°C to 85°C
Specified Temperature Range (Note 2) .....– 40°C to 85°C
Junction Temperature ........................................... 150°C
Storage Temperature Range ................. – 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
PACKAGE/ORDER INFORMATION
OUT A 1
–IN A 2
+IN A 3
V4
TOP VIEW
A
B
8 V+
7 OUT B
6 –IN B
5 +IN B
N8 PACKAGE
8-LEAD PDIP
S8 PACKAGE
8-LEAD PLASTIC SO
TJMAX = 150°C, θJA = 130°C/ W (N8)
TJMAX = 150°C, θJA = 190°C/ W (S8)
ORDER PART
NUMBER
LT1492CN8
LT1492CS8
S8 PART MARKING
1492
Consult factory for Industrial and Military grade parts.
TOP VIEW
OUT A 1
–IN A 2
+IN A 3
V+ 4
+IN B 5
–IN B 6
OUT B 7
NC 8
A
B
16 OUT D
15 –IN D
D
14 +IN D
13 V
12 +IN C
C
11 –IN C
10 OUT C
9 NC
S PACKAGE
16-LEAD PLASTIC SO
TJMAX = 150°C, θJA = 150°C/ W
ORDER PART
NUMBER
LT1493CS
5V ELECTRICAL CHARACTERISTICS
VS = 5V, 0V; VCM = 0.5V, VOUT = 0.5V, TA = 25°C, unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
VOS
VOS
Time
Input Offset Voltage
Long-Term Input Offset Voltage Stability
IOS Input Offset Current
IB Input Bias Current
Input Noise Voltage
0.1Hz to 10Hz
en Input Noise Voltage Density
in Input Noise Current Density
Input Resistance (Note 3)
fO = 10Hz
fO = 1000Hz
fO = 10Hz
fO = 1000Hz
Differential Mode
Common Mode
Input Capacitance
f = 1MHz
Input Voltage Range
CMRR
PSRR
Common Mode Rejection Ratio
Power Supply Rejection Ratio
VCM = 0V to 3.4V
VS = 2.5V to 12.5V
MIN TYP MAX
100 180
0.6
5 20
50 100
330
17.3
16.5
0.78
0.14
10 40
800
10
3.4 3.60
0 –0.25
86 102
90 110
UNITS
µV
µV/Mo
nA
nA
nVP-P
nV/Hz
nV/Hz
pA/Hz
pA/Hz
M
M
pF
V
V
dB
dB
2


Part Number LT1493
Description 5MHz/ 3V/us/ Low Power Single Supply/ Dual and Quad Precision Op Amps
Maker Linear Technology
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LT1493 Datasheet PDF






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