LTC1298是Micropower Sampling 12-Bit A/D Converters In S0-8 Packages

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LTC1298 - LTC1298是Micropower Sampling 12-Bit A/D Converters In S0-8 Packages

LTC1298是Linear公司的一款通用型 SAR ADC产品，LTC1298是Micropower Sampling 12-Bit A/D Converters In S0-8 Packages，本站介绍了LTC1298的封装应用图解、特点和优点、功能等，并给出了与LTC1298相关的凌力尔特元器件型号供参考。

LTC1298 - Micropower Sampling 12-Bit A/D Converters In S0-8 Packages

LTC1298 - Micropower Sampling 12-Bit A/D Converters In S0-8 Packages - Linear Technology（凌力尔特）

功能描述

The LTC1286/LTC1298 are micropower, 12-bit, successive approximation sampling A/D converters. They typically draw only 250μA of supply current when converting and automatically power down to a typical supply current of 1nA whenever they are not performing conversions. They are packaged in 8-pin SO packages and operate on 5V to 9V supplies. These 12-bit, switched-capacitor, successive approximation ADCs include sample-and-holds. The LTC1286 has a single differential analog input. The LTC1298 offers a software selectable 2-channel MUX.On-chip serial ports allow efficient data transfer to a wide range of microprocessors and microcontrollers over three wires. This, coupled with micropower consumption, makes remote location possible and facilitates transmitting data through isolation barriers.These circuits can be used in ratiometric applications or with an external reference. The high impedance analog inputs and the ability to operate with reduced spans (to 1.5V full scale) allow direct connection to sensors and transducers in many applications, eliminating the need for gain stages.

特点

12-Bit Resolution

8-Pin SOIC Plastic Package

Low Cost

Low Supply Current: 250µA Typ.

Auto Shutdown to 1nA Typ.

Guaranteed ±3/4LSB Max DNL

Single Supply 5V to 9V Operation

On-Chip Sample-and-Hold

60µs Conversion Time

Sampling Rates: 12.5 ksps (LTC1286) 11.1 ksps (LTC1298)

I/O Compatible with SPI, Microwire, etc.

Differential Inputs (LTC1286)

2-Channel MUX (LTC1298)

3V Versions Available: LTC1285/LTC1288

应用

Battery-Operated Systems

Remote Data Acquisition

Battery Monitoring

Handheld Terminal Interface

Temperature Measurement

Isolated Data Acquisition

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)
LTC1298CN8	N-8	C	$6.60	$5.20
LTC1298CN8#PBF	N-8	C	$6.60	$5.20
LTC1298CS8	SO-8	C	$7.10	$5.60
LTC1298CS8#PBF	SO-8	C	$7.10	$5.60
LTC1298CS8#TR	SO-8	C		$5.66
LTC1298CS8#TRPBF	SO-8	C		$5.66
LTC1298IN8	N-8	I	$8.25	$6.45
LTC1298IN8#PBF	N-8	I	$8.25	$6.45
LTC1298IS8	SO-8	I	$8.85	$6.95
LTC1298IS8#PBF	SO-8	I	$8.85	$6.95
LTC1298IS8#TR	SO-8	I		$7.01
LTC1298IS8#TRPBF	SO-8	I		$7.01