The LTC6268/LTC6269IMS8E-10#TRPBF is a single/dual 500MHz FET-input operational amplifier with extremely low input bias current and low input capacitance. It also features low input-referred current noise and voltage noise making it an ideal choice for high speed transimpedance amplifiers, CCD output buffers, and high-impedance sensor amplifiers. Its low distortion makes the LTC6268/LTC6269IMS8E-10#TRPBF an ideal amplifier for driving SAR ADCs.
It operates on 3.1V to 5.25V supply and consumes 16.5mA per amplifier. A shutdown feature can be used to lower power consumption when the amplifier is not in use.
The LTC6268 single op amp is available in 8-lead SOIC and 6-lead SOT-23 packages. The SOIC package includes two unconnected pins which can be used to create an input pin guard ring to protect against board leakage currents. The LTC6269IMS8E-10#TRPBF dual op amp is available in 8-lead MSOP with exposed pad and 3mm × 3mm 10-lead DFN packages. They are fully specified over the –40°C to 85°C and the –40°C to 125°C temperature ranges.
Feature
- Gain Bandwidth Product: 500MHz
- –3dB Bandwidth (A = 1): 350MHz
- Low Input Bias Current:
- ±3fA Typ. Room Temperature
- 4pA Max at 125°C
- Current Noise (100kHz): 5.5fA/√Hz
- Voltage Noise (1MHz): 4.3nV/√Hz
- Extremely Low CIN 450fF
- Rail-to-Rail Output
- Slew Rate: 400V/μs
- Supply Range: 3.1V to 5.25V
- Quiescent Current: 16.5mA
- Harmonic Distortion (2VP-P):
- –100dB at 1MHz
- –80dB at 10MHz
- Operating Temp Range: –40°C to 125°C
- Single in 8-Lead SO-8, 6-Lead TSOT-23 Packages
- Dual in 8-Lead MS8, 3mm × 3mm 10-Lead DFN 10 Packages
Applications
- Trans-Impedance Amplifiers
- ADC Drivers
- CCD Output Buffer
- Photomultiplier Tube Post-Amplifier
- Low IBIAS Circuits
