LT1809 Linear Technology, LT1809 Datasheet

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LT1809

Manufacturer Part Number
LT1809
Description
180MHz/ 350V/ms Rail-to-Rail Input and Output Low Distortion Op Amp
Manufacturer
Linear Technology
Datasheet

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FEATURES
APPLICATIO S
TYPICAL APPLICATIO
V
–3dB Bandwidth: 320MHz, A
Gain-Bandwidth Product: 180MHz, A
Slew Rate: 350V/ s
Wide Supply Range: 2.5V to 12.6V
Large Output Current: 85mA
Low Distortion, 5MHz: – 90dBc
Input Common Mode Range Includes Both Rails
Output Swings Rail-to-Rail
Input Offset Voltage, Rail-to-Rail: 2.5mV Max
Common Mode Rejection: 89dB Typ
Power Supply Rejection: 87dB Typ
Open-Loop Gain: 100V/mV Typ
Shutdown Pin
8-Pin SO-8 Package
Operating Temperature Range – 40 C to 85 C
Active Filters
Rail-to-Rail Buffer Amplifiers
Driving A/D Converters
Low Voltage Signal Processing
Video Line Driver
IN
232
V
2
S
Single 3V Supply, 4MHz, 4th Order Butterworth Filter
220pF
665
U
+
LT1809
232
47pF
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
V
U
= 1
274
V
470pF
562
10
+
LT1809
274
22pF
Rail-to-Rail Input and Output
DESCRIPTIO
The LT
output op amp with a 350V/ s slew rate. The amplifier has
a –3dB bandwidth of 320MHz at unity-gain, a gain-band-
width product of 180MHz (A
current to fit the needs of low voltage, high performance
signal conditioning systems.
The LT1809 has an input range that includes both supply
rails and an output that swings within 20mV of either
supply rail to maximize the signal dynamic range in low
supply applications.
The LT1809 has very low distortion (–90dBc) up to 5MHz
that allows it to be used in high performance data acqui-
sition systems.
The LT1809 maintains its performance for supplies from
2.5V to 12.6V and is specified at 3V, 5V and 5V supplies.
The inputs can be driven beyond the supplies without
damage or phase reversal of the output.
The LT1809 is available in the 8-pin SO package with the
standard op amp pinout. This device can be used as a plug-
in replacement for many op amps to improve input/output
range and performance.
, LTC and LT are registered trademarks of Linear Technology Corporation.
1809 TA01
V
OUT
Low Distortion Op Amp
®
1809 is a low distortion rail-to-rail input and
–10
–20
–30
–40
–50
–60
–70
–80
–90
10
U
0
10k
180MHz, 350V/ s
Final Electrical Specifications
V
V
S
IN
Filter Frequency Response
= 3V, 0V
= 2.5V
100k
V
P-P
FREQUENCY (Hz)
10) and an 85mA output
1M
January 2000
10M
LT1809
1809 TA01a
100M
1

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LT1809 Summary of contents

Page 1

... The inputs can be driven beyond the supplies without damage or phase reversal of the output. The LT1809 is available in the 8-pin SO package with the standard op amp pinout. This device can be used as a plug- in replacement for many op amps to improve input/output range and performance ...

Page 2

... – 5V – 3V 2.5V to 10V ORDER PART TOP VIEW NUMBER LT1809CS8 6 OUT LT1809IS8 PART MARKING = 190 C/W JA 1809 1809I MIN TYP MAX 0.6 2.5 0.6 2.5 0.3 1.75 1.8 8 – 27.5 –13 11.8 35.5 0.05 1.2 0.2 4 0.25 5 4.5 10 ...

Page 3

... V = 0.5V to 2.5V – 5V – 3V 2.5V to 10V Load I = 5mA SINK I = 25mA SINK LT1809 MIN TYP MAX 150 300 160 300 500 12.5 17 0.55 0.8 0.31 0.5 160 300 P 5MHz – 86 P-P C ...

Page 4

... LT1809 ELECTRICAL CHARACTERISTICS The denotes the specifications which apply over the half supply unless otherwise noted. CM OUT SYMBOL PARAMETER V Output Voltage Swing HIGH (Note Short-Circuit Current SC I Supply Current S Disable Supply Current GBW Gain-Bandwidth Product SR Slew Rate The denotes the specifications which apply over the – ...

Page 5

... SHDN Frequency = 2MHz A = – Measure 1k P-P 0.01 5V STEP 150 V L LT1809 = 5V, 0V 3V, 0V SHDN MIN TYP MAX 140 = 4V 180 P-P MIN TYP MAX 0.8 0.8 0.35 2 – 30 –12.5 13.5 42.5 0.05 0.4 0. 100 ...

Page 6

... LT1809 ELECTRICAL CHARACTERISTICS The denotes the specifications which apply over the unless otherwise noted. OUT SYMBOL PARAMETER V Input Offset Voltage Input Offset Voltage Drift (Note Input Offset Voltage Shift OS I Input Bias Current B I Input Bias Current Shift ...

Page 7

... O Note 5: The LT1809C is guaranteed to meet specified performance from The LT1809C is designed, characterized and expected to meet specified performance from – but is not tested or QA sampled at these temperatures. The LT1809I is guaranteed to meet specified performance from – ...

Page 8

... LT1809 U TYPICAL APPLICATIO Single Supply Video Line Driver The LT1809 is a wideband rail-to-rail op amp with high output current that allows it to drive video signals in low supply applications. Figure 1 depicts a single supply video line driver with AC coupling to minimize the quiescent power dissipation. Resistors R1 and R2 are used to level- shift the input and output to provide the largest signal swing ...

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