15MHz, Low Power, Low Noise, CMOS Operational Amplifiers
The LTC72x family of single, dual, and quad operational amplifiers represents a new generation of general-purpose, low-power low-noise operational amplifiers. Featuring rail-to-rail input and output swings, low quiescent current (800 μA/ch typical) combined with a wide bandwidth of 15 MHz and very-low noise (8.5 nV/√Hz at 1 kHz) makes this family attractive for a variety of applications that require a good balance between cost and performance. The low input bias current supports those operational amplifiers to be used in applications with MΩ source impedances.
The robust design of the LTC72x provides ease-of-use to the circuit designer — a unity-gain stable, integrated RFI-EMI rejection filter, no phase reversal in overdrive condition, and high electrostatic discharge (ESD) protection (4-kV HBM).
These devices are optimized for low voltage operation as low as 2.0 V (±1.0 V) and up to 5.5 V (±2.75 V). This latest addition of low noise CMOS operational amplifiers, in conjunction with the LTC883x provide a family of bandwidth, noise, and power options to meet the needs of a wide variety of applications.
Features and Benefits
n Low Noise
– en: 8.5 nV/√Hz at 1 kHz
– Vn: 3 μVPP at 0.1 Hz to 10 Hz
n 15 MHz Wide Bandwidth and 15 V/μs High Slew Rate
n Low IQ: 800 μA per Amplifier
n 2.0 V to 5.5 V Wide Supply Voltage Range
n Low Input Bias Current: ±1 pA
n Offset Voltage: 3.5 mV Maximum
n Unity-Gain Stable
n Internal RFI-EMI Filter
n Extended Temperature Range: −40 ℃ to +125 ℃
n Battery-Powered Instruments
– Consumer, Industrial, Medical
– Notebooks, Portable Media Players
n Sensor Signal Conditioning
n Barcode Scanners
n Active Filters
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