LTC1562-2是非常低噪声、低失真有源 RC 四通道通用滤波器

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LTC1562-2 - LTC1562-2是非常低噪声、低失真有源 RC 四通道通用滤波器

LTC1562-2是Linear公司的一款滤波器单元式部件产品，LTC1562-2是非常低噪声、低失真有源 RC 四通道通用滤波器，本站介绍了LTC1562-2的封装应用图解、特点和优点、功能等，并给出了与LTC1562-2相关的凌力尔特元器件型号供参考。

LTC1562-2 - 非常低噪声、低失真有源 RC 四通道通用滤波器

LTC1562-2 - 非常低噪声、低失真有源 RC 四通道通用滤波器 - Linear Technology（凌力尔特）

功能描述

The LTC1562-2 is a low noise, low distortion continuous time filter with rail-to-rail inputs and outputs, optimized for a center frequency (fO) of 20kHz to 300kHz. Unlike most monolithic filters, no clock is needed. Four independent 2nd order filter blocks can be cascaded in any combination, such as one 8th order or two 4th order filters. Each block's response is programmed with three external resistors for center frequency, Q and gain, using simple design formulas. Each 2nd order block provides lowpass and bandpass outputs. Highpass response is available if an external capacitor replaces one of the resistors. Allpass, notch and elliptic responses can also be realized. The LTC1562-2 is designed for applications where dynamic range is important. For example, by cascading 2nd order sections in pairs, the user can configure the IC as a dual 4th order Butterworth lowpass filter with 90dB signal-to-noise ratio from a single 5V power supply. Low level signals can exploit the built-in gain capability of the LTC1562-2. Varying the gain of a section can achieve a dynamic range as high as 114dB with a ±5V supply. Other cutoff frequency ranges can be provided upon request. Please contact LTC Marketing.

特点

Continuous Time—No Clock

Four 2nd Order Filter Sections, 20kHz to 300kHz

Center Frequency

Butterworth, Chebyshev, Elliptic or Equiripple

Delay Response

Lowpass, Bandpass, Highpass Responses

99dB Typical S/N, ±5V Supply (Q = 1)

93dB Typical S/N, Single 5V Supply (Q = 1)

Rail-to-Rail Input and Output Voltages

DC Accurate to 3mV (Typ)

±0.5% Typical Center Frequency Accuracy

“Zero-Power” Shutdown Mode

Single or Dual Supply, 5V to 10V Total

Resistor-Programmable fO, Q, Gain

应用

High Resolution Systems (14 Bits to 18 Bits)

Antialiasing/Reconstruction Filters

Data Communications, Equalizers

Dual or I-and-Q Channels (Two Matched 4th OrderFilters in One Package)

Linear Phase Filtering

Replacing LC Filter Modules

以下列出了不同封装及包装形式的具体型号,并标出了直接在linear官网上订货的价格（美元）

器件型号	封装	温度	价格 (以 1 ~ 99 片为批量)	价格 (以 1000 片为批量)
LTC1562CG-2	SSOP-20	C	$10.20	$8.95
LTC1562CG-2#PBF	SSOP-20	C	$10.20	$8.95
LTC1562CG-2#TR	SSOP-20	C		$9.05
LTC1562CG-2#TRPBF	SSOP-20	C		$9.05
LTC1562IG-2	SSOP-20	I	$11.75	$10.30
LTC1562IG-2#PBF	SSOP-20	I	$11.75	$10.30
LTC1562IG-2#TR	SSOP-20	I		$10.40
LTC1562IG-2#TRPBF	SSOP-20	I		$10.40