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LT1493CS#PBF

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1
LT1492/LT1493
5MHz, 3V/µs, Low Power
Single Supply, Dual and Quad
Precision Op Amps
DESCRIPTION
U
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.
TYPICAL APPLICATION
U
FEATURES
■
Battery-Powered Systems
Portable Instrumentation
■
Active Filters
■
Photodiode Amplifiers
■
DAC Current to Voltage Amplifiers
APPLICATIONS
U
■
Gain-Bandwidth Product: 5MHz Typ
■
Slew Rate: 3V/µs Typ
■
Low Supply Current per Amplifier: 0.55mA Max
■
Input Offset Voltage: 180µV Max
■
Input Offset Voltage Drift: 3µV/°C Max
■
Input Offset Current: 20nA Max
■
Input Bias Current: 100nA Max
■
Open-Loop Gain: 1500V/mV Min (V
S
= ±15V)
■
Low Input Noise Voltage: 16.5nV/√Hz
■
Low Input Noise Current: 0.14pA/√Hz
■
Large Output Drive Current: 20mA Min
■
Single Supply Operation
Input Voltage Range Includes Ground
Output Swings to Ground While Sinking Current
■
Wide Supply Voltage Range: 2.5V to 36V
■
Specified on 3.3V, 5V and ±15V
■
Dual in 8-Pin PDIP and SO Package
■
Quad in a Narrow 16-Pin SO Package
, LTC and LT are registered trademarks of Linear Technology Corporation.
Precision AC to DC Converter (Full Wave Rectifier and Filter)
–
+
+
V
IN
V
S
= 5V, 0V
< 1% ERROR FROM 100mV TO 1V, f = 1kHz
10% ERROR AT 10mV, f = 1kHz
1% ERROR AT 5kHz, V
IN
= 100mV
RMS
10% ERROR AT 30kHz, V
IN
= 100mV
RMS
1/2 LT1492
–
+
1/2 LT1492
5V
10k
10k
10k
4.99k
15k
6.49k
10µF
V
OUT
DC
1492/93 TA01
OFFSET VOLTAGE DRIFT WITH TEMPERATURE (µV/°C)
–2.5
PERCENT OF UNITS (%)
30
40
50
1.5
1492/93 G02
20
10
0
–1.5
–0.5
0.5
–2 2
–1
0
1
2.5
V
S
= 5V, 0V
LT1492 N8, S8 PACKAGES
LT1493 S16 PACKAGE
Distribution of Offset Voltage
Drift with Temperature
2
LT1492/LT1493
ABSOLUTE MAXIMUM RATINGS
W
WW
U
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
W
U
U
ORDER PART
NUMBER
ORDER PART
NUMBER
S8 PART MARKING
1492
LT1492CN8
LT1492CS8
LT1493CS
T
JMAX
= 150°C, θ
JA
= 130°C/ W (N8)
T
JMAX
= 150°C, θ
JA
= 190°C/ W (S8)
1
2
3
4
8
7
6
5
TOP VIEW
OUT A 
–IN A
+IN A
V
–
V
+
OUT B
–IN B
+IN B
N8 PACKAGE
8-LEAD PDIP
S8 PACKAGE
8-LEAD PLASTIC SO
A
B
1
2
3
4
5
6
7
8
TOP VIEW
S PACKAGE
16-LEAD PLASTIC SO
16
15
14
13
12
11
10
9
OUT A
–IN A
+IN A
V
+
+IN B
–IN B
OUT B
NC
OUT D
–IN D
+IN D
V
–
+IN C
–IN C
OUT C
NC
C
A
D
B
T
JMAX
= 150°C, θ
JA
= 150°C/ W
Consult factory for Industrial and Military grade parts.
V
S
= 5V, 0V; V
CM
= 0.5V, V
OUT
= 0.5V, T
A
= 25°C, unless otherwise noted.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
OS
Input Offset Voltage 100 180 µV
∆V
OS
Long-Term Input Offset Voltage Stability 0.6 µV/Mo
∆Time
I
OS
Input Offset Current 520 nA
I
B
Input Bias Current 50 100 nA
Input Noise Voltage 0.1Hz to 10Hz 330 nV
P-P
e
n
Input Noise Voltage Density f
O
= 10Hz 17.3 nV/√Hz
f
O
= 1000Hz 16.5 nV/√Hz
i
n
Input Noise Current Density f
O
= 10Hz 0.78 pA/√Hz
f
O
= 1000Hz 0.14 pA/√Hz
Input Resistance (Note 3) Differential Mode 10 40 MΩ
Common Mode 800 MΩ
Input Capacitance f = 1MHz 10 pF
Input Voltage Range 3.4 3.60 V
0 –0.25 V
CMRR Common Mode Rejection Ratio V
CM
= 0V to 3.4V 86 102 dB
PSRR Power Supply Rejection Ratio V
S
= 2.5V to 12.5V 90 110 dB
5V ELECTRICAL CHARACTERISTICS
3
LT1492/LT1493
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
A
VOL
Large-Signal Voltage Gain V
O
= 0.05V to 3.7V, R
L
= 2k 175 350 V/mV
Maximum Output Voltage Swing Output High, No Load 4.2 4.35 V
(Note 4) Output High, I
SOURCE
= 1mA 4.1 4.25 V
Output High, I
SOURCE
= 15mA 3.0 3.15 V
Output Low, No Load 0.003 0.006 V
Output Low, I
SINK
= 1mA 0.062 0.075 V
Output Low, I
SINK
= 15mA 0.362 0.500 V
I
O
Maximum Output Current (Note 8) ±20 ±60 mA
SR Slew Rate A
V
= –2 1.8 V/µs
GBW Gain-Bandwidth Product f = 100kHz 4.5 MHz
I
S
Supply Current per Amplifier 425 550 µA
Minimum Supply Voltage 2.1 2.5 V
Full Power Bandwidth A
V
= 1, V
O
= 2.5V
P-P
150 kHz
t
r
, t
f
Rise Time, Fall Time A
V
= 1, 10% to 90%, V
O
= 100mV 100 ns
OS Overshoot A
V
= 1, V
O
= 100mV 20 %
t
PD
Propagation Delay A
V
= 1, V
O
= 100mV 100 ns
t
S
Settling Time 0.01%, A
V
= 1, ∆V
O
= 2V 2.6 µs
Open-Loop Output Resistance I
O
= 0mA, f = 2MHz 130 Ω
THD Total Harmonic Distortion A
V
= 1, V
O
= 1V
RMS
, f = 20Hz to 20kHz 0.005 %
V
S
= 5V, 0V; V
CM
= 0.5V, V
OUT
= 0.5V, T
A
= 25°C, unless otherwise noted.
5V ELECTRICAL CHARACTERISTICS
V
S
= 5V, 0V; V
CM
= 0.5V, V
OUT
= 0.5V, 0°C ≤ T
A
≤ 70°C, unless otherwise noted.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
OS
Input Offset Voltage ● 120 280 µV
V
OS
Input Offset Voltage Drift (Note 3) ● 13µV/°C
∆T
I
OS
Input Offset Current ● 525 nA
I
B
Input Bias Current ● 55 110 nA
Input Voltage Range ● 3.4 3.55 V
● 0 –0.15 V
CMRR Common Mode Rejection Ratio V
CM
= 0V to 3.4V ● 84 102 dB
PSRR Power Supply Rejection Ratio V
S
= 2.5V to 12.5V ● 90 110 dB
A
VOL
Large-Signal Voltage Gain V
O
= 0.05V to 3.7V, R
L
= 2k ● 140 250 V/mV
Maximum Output Voltage Swing Output High, No Load ● 4.1 4.25 V
(Note 4) Output High, I
SOURCE
= 1mA ● 4.0 4.15 V
Output High, I
SOURCE
= 15mA ● 2.9 3.05 V
Output Low, No Load ● 0.004 0.007 V
Output Low, I
SINK
= 1mA ● 0.070 0.085 V
Output Low, I
SINK
= 15mA ● 0.390 0.525 V
I
S
Supply Current per Amplifier ● 470 650 µA
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LT1493CS#PBF

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Buy LT1493CS#PBF
Manufacturer:
Analog Devices Inc.
Description:
Precision Amplifiers 5MHz,3V/us Quad Single Supply OA
Lifecycle:
New from this manufacturer.
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