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LTC1275 - LTC1275是12-Bit, 300ksps Sampling A/D Converters with Reference

LTC1275是LINEAR凌力尔特公司的一款通用型 SAR ADC产品，LTC1275是LTC1275是12-Bit, 300ksps Sampling A/D Converters with Reference，本站介绍了LTC1275的封装应用图解、特点和优点、功能等，并给出了与LTC1275相关的LINEAR元器件型号供参考。

LTC1275 - LTC1275是12-Bit, 300ksps Sampling A/D Converters with Reference - 通用型 SAR ADC - 数据转换 - 凌力尔特

LTC1275 - 12-Bit, 300ksps Sampling A/D Converters with Reference

LTC1275 - 12-Bit, 300ksps Sampling A/D Converters with Reference - Linear Technology（凌力尔特）

功能描述

The LTC1273/LTC1275/LTC1276 are 300ksps, sampling 12-bit A/D converters that draw only 75mW from single 5V or ±5V supplies. These easy-to-use devices come complete with 600ns sample-and-holds, precision references and internally trimmed clocks. Unipolar and larcon version modes provide flexibility for various cations. They are built with LTBiCMOS (TM) switched capacitor technology.

These devices have 25ppm/°C (max) internal references. The LTC1273 converts 0V to 5V unipolar inputs from a single 5V supply. The LTC1275/LTC1276 convert ±2.5V and ±5V respectively from ±5V supplies. Maximum DC specifications include ±1/2LSB INL, ±3/4LSB DNL and 25ppm/°C full scale drift over temperature. Outstanding AC performance includes 70dB S/(N + D) and 77dB THD at the Nyquist input frequency of 150kHz.

The internal clock is trimmed for 2.7μs maximum conversion time. The clock automatically synchronizes to each sample command eliminating problems with asynchronous clock noise found in competitive devices. A high speed parallel interface eases connections to FIFOs, DSPs and microprocessors.

特点

Single Supply 5V or ±5V Operation

300ksps Sample Rate

75mW (Typ) Power Dissipation

On-Chip 25ppm/°C Reference

Internal Synchronized Clock; No Clock Required

High Impedance Analog Input

70dB S/(N + D) and 77dB THD at Nyquist

±1/2LSB INL and ±3/4LSB DNL Max (A Grade)

ESD Protected On All Pins

24-Pin Narrow DIP and SW Packages

Variety of Input Ranges:0V to 5V (LTC1273)±2.5V (LTC1275)±5V (LTC1276)

应用

High Speed Data Acquisition

Digital Signal Processing

Multiplexed Data Acquisition Systems

Audio and Telecom Processing

Spectrum Analysis

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)
LTC1275ACN	N-24	C	$21.80	$17.25
LTC1275ACN#PBF	N-24	C	$21.80	$17.25
LTC1275ACSW	SW-24	C	$22.65	$17.90
LTC1275ACSW#PBF	SW-24	C	$22.65	$17.90
LTC1275ACSW#TR	SW-24	C		$18.00
LTC1275ACSW#TRPBF	SW-24	C		$18.00
LTC1275BCN	N-24	C	$14.65	$11.60
LTC1275BCN#PBF	N-24	C	$14.65	$11.60
LTC1275BCSW	SW-24	C	$16.15	$12.75
LTC1275BCSW#PBF	SW-24	C	$16.15	$12.75
LTC1275BCSW#TR	SW-24	C		$12.85
LTC1275BCSW#TRPBF	SW-24	C		$12.85

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