LTC6091_15 Datasheet, PDF (1/22 Pages) Linear Technology – Dual 140V, Rail-to-Rail Output, Picoamp Input Current Op Amp

FEATURES
n _{Supply Range: ±4.75V to ±70V (140V)}
n _{0.1Hz to 10Hz Noise: 3.5μVP-P}
n _{Input Bias Current: 50pA Maximum}
n _{Low Offset Voltage: 1.25mV Maximum}
n _{Low Offset Drift: ±5μV/°C Maximum}
n _{CMRR: 130dB Minimum}
n _{Rail-to-Rail Output Stage}
n _{Output Sink and Source: 50mA}
n _{12MHz Gain-Bandwidth Product}
n _{21V/μs Slew Rate}
n _{11nV/√Hz Noise Density}
n _{Thermal Shutdown}
n _{4mm × 6mm 16-Lead QFN Package}
APPLICATIONS
n _ATE
n _{Piezo Drivers}
n _{Photodiode Amplifier}
n _{High Voltage Regulators}
n _{Optical Networking}
LTC6091
Dual 140V, Rail-to-Rail
Output, Picoamp
Input Current Op Amp
DESCRIPTION
The LTC^®6091 is a dual, high voltage precision operational
amplifier. The low noise, low bias current input stage is
ideal for high gain configurations. The LTC6091 has low
input offset voltage, a rail-to-rail output stage, and can be
run from a single 140V or split ±70V supplies.
The LTC6091 is internally protected against overtemper-
ture conditions. A thermal warning output, TFLAG, goes
active when the die temperature approaches 150°C. The
output stage can be turned off with the output disable pin
OD. By tying the OD pin to the thermal warning output,
the part will disable the output stage when it is out of the
safe operating area. These pins easily interface to any
logic family.
The LTC6091 is unity-gain stable with up to a 200pF output
capacitor. A wide input and output common mode range
along with many features makes the LTC6091 useful for
many high voltage applications.
L, LT, LTC, LTM, Linear Technology, the Linear logo and Over-The-Top are registered
trademarks of Linear Technology Corporation. All other trademarks are the property of their
respective owners.
TYPICAL APPLICATION
High Voltage Analog MUX
SELECT
CHA/CHB
10k
CHA_IN
10k
ODA COMA
+
1/2 LTC6091
–
100k
10k
ODB COMB
+
CHB_IN
1/2 LTC6091
–
10k
100k
6091 TA01a
CHA_IN = 10V_P-P, 20kHz SINE
CHB_IN = 5V_P-P, 20kHz TRIANGLE
MUX OUT
SELECT ¹⁰
CHA/CHB
10V/DIV
0
MUX OUT
20V/DIV
V_OUT vs Time
CHB CHA CHB
TIME (200µs/DIV)
6091 TA01b
For more information www.linear.com/LTC6091
6091fa
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