LTC1855 是具停机功能的8通道、±10V 输入 14位、100ksps ADC 转换器

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LTC1855 - LTC1855 是具停机功能的8通道、±10V 输入 14位、100ksps ADC 转换器

LTC1855是Linear公司的一款通用型 SAR ADC产品，LTC1855 是具停机功能的8通道、±10V 输入 14位、100ksps ADC 转换器，本站介绍了LTC1855的封装应用图解、特点和优点、功能等，并给出了与LTC1855相关的凌力尔特元器件型号供参考。

LTC1855 - 具停机功能的8通道、±10V 输入 14位、100ksps ADC 转换器

LTC1855 - 具停机功能的8通道、±10V 输入 14位、100ksps ADC 转换器 - Linear Technology（凌力尔特）

功能描述

The LTC1854/LTC1855 are 8-channel, low power, 12-/14-bit, 100ksps, analog-to-digital converters (ADCs). These ADCs operate from a single 5V supply and the 8-channel multiplexer can be programmed for singleended inputs or pairs of differential inputs or combinations of both. In addition, all channels are fault protected to ±30V. A fault condition on any channel will not affect the conversion result of the selected channel.

An onboard precision reference minimize external components. The low 40mW power dissipation is made even more attractive with two user selectable power shutdown modes. DC specifications include, ±1.5LSB INL for the LTC1855 and ±1LSB for the LTC1854.

The internal clock is trimmed for 5μs maximum conversion time and the sampling rate is guaranteed at 100ksps. A separate convert start input and data ready signal (BUSY) ease connections to FIFOs, DSPs and microprocessors.

特点

Single 5V Supply

Sample Rate: 100ksps

8-Channel Multiplexer with ±30V Protection

±10V Bipolar Input RangeSingle Ended or Differential

±1.5LSB INL for the LTC1855, ±1LSB INL for the LTC1854

No Missing Codes Over Temperature

Power Dissipation: 40mW (Typ)

SPI/MICROWIRETM Compatible Serial I/O

Power Shutdown: Nap and Sleep

SINAD: 83dB (Typ) for the LTC1855

Operates with Internal or External Reference

Internal Synchronized Clock

Available in a 28-Pin SSOP Package

应用

Industrial Process Control

Multiplexed Data Acquisition Systems

High Speed Data Acquisition for PCs

Digital Signal Processing

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)
LTC1855CG	SSOP-28	C	$11.64	$7.95
LTC1855CG#PBF	SSOP-28	C	$11.64	$7.95
LTC1855CG#TR	SSOP-28	C		$8.01
LTC1855CG#TRPBF	SSOP-28	C		$8.01
LTC1855IG	SSOP-28	I	$13.98	$9.55
LTC1855IG#PBF	SSOP-28	I	$13.98	$9.55
LTC1855IG#TR	SSOP-28	I		$9.61
LTC1855IG#TRPBF	SSOP-28	I		$9.61