描述 Description

The LTC321/LTC358/LTC324 family of single-, dual-, and quad- channel operational?amplifiers is specifically designed for general-purpose cost-sensitive systems and?applications. Featuring rail-to-rail input and output (RRIO) swings, and low? quiescent?current (typical 85 μA) combined with a wide bandwidth (1.2 MHz) and low noise (30nV/√Hz at 1 kHz) makes this family very attractive for a variety of battery-powered?applications that require a good balance between cost and? performance, such as audio?outputs, consumer electronics, smoke detectors, portable medical devices and white?goods. The low input bias current supports these amplifiers to be used in applications?with mega-ohm source impedances.



The robust design of the LTC321/LTC358/LTC324 family provides ease-of-use to the?circuit designer: unity-gain stability with capacitive loads of up to 500 pF, integrated?RF/EMI rejection filter, no phase reversal in overdrive conditions, and high electro-static?discharge (ESD) protection (5-kV HBM). The LTC321/LTC358/LTC324 amplifiers are?optimized for operation at voltages as low as +1.8 V (± 0.9 V) and up to +5.5 V (± 2.75 V),?and over the extended temperature range of -40 ℃ to +125 ℃.



The LTC321 (single) is available in both SOT23-5L and SC70-5L packages. The LTC358?(dual) is offered in SOIC-8L, DFN-8L and MSOP-8L packages. The quad-channel LTC324?is offered in SOIC-14L, TSSOP-14L and QFN-16L packages.

特性 Features

? General Purpose Amplifiers for Cost-Sensitive Systems
? 1.2 MHz GBW for Unity-Gain Stable
? Micro-Power: 85 μA Supply Current Per Amplifier
? Low Input Offset Voltage: ± 3.0 mV Maximum
? Low Noise: 30 nV/√Hz at 1 kHz
? Single 1.8 V to 5.5 V Supply Voltage Range
? Rail-to-Rail Input and Output
? Internal RF/EMI Filter
? Extended Temperature Range: -40℃ to +125℃

應(yīng)用 Application

? Battery-Powered Instruments:
– Consumer, Industrial, Medical, Notebooks