FEATURES
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LT1806/LT1807
325MHz, Single/Dual,
Rail-to-Rail Input and Output, Low Distortion,
Low Noise Precision Op Amps
DESCRIPTIO
The LT
廬
1806/LT1807 are single/dual low noise rail-to-rail
input and output unity-gain stable op amps that feature a
325MHz gain-bandwidth product, a 140V/碌s slew rate and
a 85mA output current. They are optimized for low voltage,
high performance signal conditioning systems.
The LT1806/LT1807 have a very low distortion of 鈥?80dBc
at 5MHz, a low input referred noise voltage of 3.5nV/鈭欻z
and a maximum offset voltage of 550碌V that allows them
to be used in high performance data acquisition systems.
The LT1806/LT1807 have 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 LT1806/LT1807 maintain their performance for sup-
plies from 2.5V to 12.6V and are specified at 3V, 5V and
鹵5V
supplies. The inputs can be driven beyond the sup-
plies without damage or phase reversal of the output.
The LT1806 is available in an 8-pin SO package with the
standard op amp pinout and a 6-pin SOT-23 package. The
LT1807 features the standard dual op amp pinout and is
available in 8-pin SO and MSOP packages.These devices
can be used as plug-in replacements for many op amps to
improve input/output range and performance.
Gain Bandwidth Product: 325MHz
Slew Rate: 140V/
碌
s
Wide Supply Range: 2.5V to 12.6V
Large Output Current: 85mA
Low Distortion, 5MHz: 鈥?0dBc
Low Voltage Noise: 3.5nV/鈭欻z
Input Common Mode Range Includes Both Rails
Output Swings Rail-to-Rail
Input Offset Voltage (Rail-to-Rail): 550碌V Max
Common Mode Rejection: 106dB Typ
Power Supply Rejection: 105dB Typ
Unity-Gain Stable
Power Down Pin (LT1806)
Single in SO-8 and 6-Pin SOT-23 Packages
Dual in SO-8 and 8-Pin MSOP Packages
Operating Temperature Range: 鈥?0擄C to 85擄C
APPLICATIO S
s
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Low Voltage, High Frequency Signal Processing
Driving A/D Converters
Rail-to-Rail Buffer Amplifiers
Active Filters
Video Line Driver
, LTC and LT are registered trademarks of Linear Technology Corporation.
TYPICAL APPLICATIO
+
1/2 LT1807
Gain of 20 Differential A/D Driver
0
鈥?0
AMPLITUDE (dB)
4096 Point FFT Response
V
S
=
鹵5V
A
V
= 20
f
SAMPLE
= 10Msps
f
IN
= 1.4086MHz
SFDR = 83dB
NONAVERAGED
V
IN
= 200mV
P-P
鈥?/div>
R2
909鈩?/div>
R5
49.9鈩?/div>
C3
470pF
C2 5.6pF
R6
49.9鈩?/div>
5V
鈥?0
鈥?0
鈥?0
R1
100鈩?/div>
V
IN
C1 5.6pF
LTC
廬
1420
PGA GAIN = 1
鈥揂V
IN
V
REF
= 4.096V
+AV
IN
12 BITS
10Msps
鈥?00
18067 TA01
R3
100鈩?/div>
鈥?/div>
+
R4
1k
鈥?V
鈥?20
0
1
2
3
FREQUENCY (MHz)
4
5
18067 TA02
1/2 LT1807
U
U
U
1
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LT1806CS6相關(guān)型號(hào)PDF文件下載
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