Datasheet LT1351 (Analog Devices)

LT1351 250µA, 3MHz, 200V/µs Operational Amplifier
U FEATURES DESCRIPTION
■
3MHz Gain Bandwidth
The LT®1351 is a low power, high speed, high slew rate ■
200V/
µ
s Slew Rate
operational amplifier with outstanding AC and DC perfor- ■
250
µ
A Supply Current
mance. The LT1351 features lower supply current, lower ■
Available in Tiny MSOP Package
input offset voltage, lower input bias current and higher ■ C-LoadTM Op Amp Drives All Capacitive Loads DC gain than devices with comparable bandwidth. The ■ Unity-Gain Stable circuit combines the slewing performance of a current ■ Power Saving Shutdown Feature feedback amplifier in a true operational amplifier with ■ Maximum Input Offset Voltage: 600µV matched high impedance inputs. The high slew rate en- ■ Maximum Input Bias Current: 50nA sures that the large-signal bandwidth is not degraded. The ■ Maximum Input Offset Current: 15nA amplifier is a single gain stage with outstanding settling ■ Minimum DC Gain, RL = 2k: 30V/mV characteristics which make the circuit an ideal choice for ■ Input Noise Voltage: 14nV/√Hz data acquisition systems. The output drives a 1kΩ load to ■ Settling Time to 0.1%, 10V Step: 700ns ±13V with ±15V supplies and a 500Ω load to ±3.4V on ±5V ■ Settling Time to 0.01%, 10V Step: 1.25µs supplies. The amplifier is also stable with any capacitive ■ Minimum Output Swing into 1k: ±13V load which makes it useful in buffer or cable driver ■ Minimum Output Swing into 500Ω: ±3.4V applications. ■ Specified at ±2.5V, ±5V and ±15V The LT1351 is a member of a family of fast, high perfor- mance amplifiers using this unique topology and employ-
U APPLICATIONS
ing Linear Technology Corporation’s advanced complementary bipolar processing. For dual and quad ■ Battery-Powered Systems amplifier versions of the LT1351 see the LT1352/LT1353 ■ Wideband Amplifiers data sheet. For higher bandwidth devices with higher ■ Buffers supply current see the LT1354 through LT1365 data sheets. ■ Active Filters Singles, duals and quads of each amplifier are available. ■ Data Acquisition Systems , LTC and LT are registered trademarks of Linear Technology Corporation. ■ Photodiode Amplifiers C-Load is a trademark of Linear Technology Corporation.
U TYPICAL APPLICATION Instrumentation Amplifier Large-Signal Response
R1 R2 R5 R4 50k 5k 1.1k 50k – R3 5k LT1351 – – + LT1351 VOUT VIN + + GAIN = [R4/R3][1 + (1/2)(R2/R1 + R3/R4) + (R2 + R3)/R5] = 102 TRIM R5 FOR GAIN TRIM R1 FOR COMMON MODE REJECTION BW = 30kHz 1351 TA01 AV = –1 1351 TA02 1