LT1807CMS8 Datasheet, PDF (1/28 Pages) Linear Technology – Gain-Bandwidth Product: 325MHz

LT1806/LT1807
FEATURES
325MHz, Single/Dual,
Rail-to-Rail Input and Output, Low Distortion,
Low Noise Precision Op Amps
DESCRIPTION
n _{Gain-Bandwidth Product: 325MHz}
n _{Slew Rate: 140V/μs}
n _{Wide Supply Range: 2.5V to 12.6V}
n _{Large Output Current: 85mA}
n _{Low Distortion, 5MHz: –80dBc}
n _{Low Voltage Noise: 3.5nV/√Hz}
n _{Input Common Mode Range Includes Both Rails}
n _{Output Swings Rail-to-Rail}
n _{Input Offset Voltage (Rail-to-Rail): 550μV Max}
n _{Common Mode Rejection: 106dB Typ}
n _{Power Supply Rejection: 105dB Typ}
n _{Unity-Gain Stable}
n _{Power Down Pin (LT1806)}
n _{Operating Temperature Range: – 40°C to 85°C}
n _{Single in SO-8 and 6-Pin Low Profile (1mm)}
ThinSOT™ Packages
n _{Dual in SO-8 and 8-Pin MSOP Packages}
APPLICATIONS
n _{Low Voltage, High Frequency Signal Processing}
n _{Driving A/D Converters}
n _{Rail-to-Rail Buffer Amplifiers}
n _{Active Filters}
n _{Video Line Driver}
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. ThinSOT is a trademark of Linear Technology Corporation. All other
trademarks are the property of their respective owners.
The LT^®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/μs 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 – 80dBc
at 5MHz, a low input referred noise voltage of 3.5nV/√Hz
and a maximum offset voltage of 550μV 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 supplies
from 2.5V to 12.6V and are specified at 3V, 5V and ±5V
supplies. The inputs can be driven beyond the supplies
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 TSOT-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.
TYPICAL APPLICATION
Gain of 20 Differential A/D Driver
+
1/2 LT1807
–
R2
909Ω
5V
R1
R5
V_IN
100Ω
C1 5.6pF
C2 5.6pF
49.9Ω
C3
470pF
+AV_{IN LTC}®₁₄₂₀
PGA GAIN = 1
–AV_IN VREF = 4.096V
12 BITS
10Msps
R6
49.9Ω
R3
100Ω
–
R4
1k
–5V
18067 TA01
1/2 LT1807
+
4096 Point FFT Response
0
V_S = p5V
A_V = 20
–20
f_SAMPLE = 10Msps
f_IN = 1.4086MHz
SFDR = 83dB
–40
NONAVERAGED
V_IN = 200mV_P-P
–60
–80
–100
–120
0
1
2
3
4
5
FREQUENCY (MHz)
18067 TA02
18067fc
1