LT1995_15 Datasheet, PDF (1/20 Pages) Linear Technology – 32MHz, 1000V/s Gain Selectable Amplifier

FEATURES
■ _{Internal Gain Setting Resistors}
■ _{Pin Configurable as a Difference Amplifier,}
Inverting and Noninverting Amplifier
■ _{Difference Amplifier:}
Gain Range 1 to 7
CMRR > 65dB
■ _{Noninverting Amplifier:}
Gain Range 1 to 8
■ _{Inverting Amplifier:}
Gain Range –1 to –7
■ _{Gain Error: <0.2%}
■ _{Slew Rate: 1000V/µs}
■ _{Bandwidth: 32MHz (Gain = 1)}
■ _{Op Amp Input Offset Voltage: 2.5mV Max}
■ _{Quiescent Current: 9mA Max}
■ _{Wide Supply Range: ±2.5V to ±15V}
■ _{Available in 10-Lead MSOP and}
10-Lead (3mm × 3mm) DFN Packages
U
APPLICATIO S
■ _{Instrumentation Amplifier}
■ _{Current Sense Amplifier}
■ _{Video Difference Amplifier}
■ _{Automatic Test Equipment}
TYPICAL APPLICATIO
High Slew Rate Differential Gain of 1
M1 M2 M4
1k
15V
OUT
4k
–
INPUT
RANGE
–15V TO 15V
+
2k
4k
–
4k
+
2k
LT1995
1k
4k
P1 P2 P4
–15V
REF
1995 TA01a
LT1995
32MHz, 1000V/µs
Gain Selectable Amplifier
DESCRIPTIO
The LT^®1995 is a high speed, high slew rate, gain select-
able amplifier with excellent DC performance. Gains from
–7 to 8 with a gain accuracy of 0.2% can be achieved using
no external components. The device is particularly well
suited for use as a difference amplifier, where the excellent
resistor matching results in a typical common mode
rejection ratio of 79dB.
The amplifier is a single gain stage design similar to the
LT1363 and features superb slewing and settling charac-
teristics. Input offset of the internal operational amplifier
is less than 2.5mV and the slew rate is 1000V/µs. The
output can drive a 150Ω load to ±2.5V on ±5V supplies,
making it useful in cable driver applications.
The resistors have excellent matching, 0.2% maximum at
room temperature and 0.3% from –40°C to 85°C. The
temperature coefficient of the resistors is typically
–30ppm/°C. The resistors are extremely linear with volt-
age, resulting in a gain nonlinearity of 10ppm.
The LT1995 is fully specified at ±2.5V, ±5V and ±15V sup-
plies and from –40°C to 85°C. The device is available in
space saving 10-lead MSOP and 10-Lead (3mm × 3mm)
DFN packages. For a micropower precision amplifier with
precision resistors, see the LT1991 and LT1996.
, LTC and LT are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
Large-Signal Transient (G = 1)
1995 TA01b
1995fb
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