LTC1594L 4-Channel, 3V Micropower Sampling 12-Bit Serial I/O A/D Converter

The LTC®1594L/LTC1598L are 3V micropower, 12-bit sampling A/D converters that feature 4- and 8-channel multiplexers, respectively. They typically draw only 160µA of supply current when converting and automatically power down to a typical supply current of 1nA between conversions. The LTC1594L is available in a 16-pin SO package and the LTC1598L is packaged in a 24-pin SSOP. Both operate on a 3V supply. The 12-bit, switched capacitor, successive approximation ADCs include a sample-and-hold.

On-chip serial ports allow efficient data transfer to a wide range of microprocessors and microcontrollers over three or four wires. This, coupled with micropower consumption, makes remote location possible and facilitates transmitting data through isolation barriers.

The circuit 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

产品特点 Features 12-Bit Resolution on 3V Supply Low Supply Current: 160µA Typ Auto Shutdown to 1nA Guaranteed ±3/4LSB Max DNL Guaranteed 2.7V Operation (5V Versions Available: LTC1594/LTC1598) Multiplexer: 4-Channel MUX (LTC1594L) 8-Channel MUX (LTC1598L) Separate MUX Output and ADC Input Pins MUX and ADC May Be Controlled Separately Sampling Rate: 10.5ksps I/O Compatible with QSPI, SPI and MICROWIRE™, etc. Small Package: 16-Pin Narrow SO (LTC1594L) 24-Pin SSOP (LTC1598L) 参数	应用 Pen Screen Digitizing Battery-Operated Systems Remote Data Acquisition Isolated Data Acquisition Battery Monitoring Temperature Measurement 典型应用图

产品特点 Features

12-Bit Resolution on 3V Supply
Low Supply Current: 160µA Typ
Auto Shutdown to 1nA
Guaranteed ±3/4LSB Max DNL
Guaranteed 2.7V Operation
(5V Versions Available: LTC1594/LTC1598)
Multiplexer: 4-Channel MUX (LTC1594L)
8-Channel MUX (LTC1598L)
Separate MUX Output and ADC Input Pins
MUX and ADC May Be Controlled Separately
Sampling Rate: 10.5ksps
I/O Compatible with QSPI, SPI and MICROWIRE™, etc.
Small Package:
16-Pin Narrow SO (LTC1594L)
24-Pin SSOP (LTC1598L)

参数

应用

Pen Screen Digitizing
Battery-Operated Systems
Remote Data Acquisition
Isolated Data Acquisition
Battery Monitoring
Temperature Measurement

典型应用图

LTC1594L 订购信息和价格参考Package Variations and Pricing

器件型号	封装	引脚	温度	价格 (以 1 ~ 99 片为批量)	价格 (以 1000 片为批量) *
LTC1594CS	SO	16	C	$6.95	$5.65
LTC1594CS#PBF	SO	16	C	$6.95	$5.65
LTC1594CS#TR	SO	16	C		$5.71
LTC1594CS#TRPBF	SO	16	C		$5.71
LTC1594IS	SO	16	I	$8.00	$6.50
LTC1594IS#PBF	SO	16	I	$8.00	$6.50
LTC1594IS#TR	SO	16	I		$6.56
LTC1594IS#TRPBF	SO	16	I		$6.56
LTC1594LCS	SO	16	C	$6.95	$5.65
LTC1594LCS#PBF	SO	16	C	$6.95	$5.65
LTC1594LCS#TR	SO	16	C		$5.71
LTC1594LCS#TRPBF	SO	16	C		$5.71
LTC1594LIS	SO	16	I	$8.00	$6.50
LTC1594LIS#PBF	SO	16	I	$8.00	$6.50
LTC1594LIS#TR	SO	16	I		$6.56
LTC1594LIS#TRPBF	SO	16	I		$6.56

LTC1594L 数据手册及相关资料下载

数据手册(英文) : LTC1594L/LTC1598L - 4- and 8-Channel, 3V Micropower Sampling 12-Bit Serial I/O A/D Converters.PDF
应用指南 (英文) : AN87 - linear Technology Magazine Circuit Collection, Volume V: Data Conversion, Interface and Signal Conditioning Products.PDF
设计要点 (英文) : DN153 - Micropower 4- and 8-Channel, 12-Bit ADCs Save Power and Space.PDF
可靠性数据 : R107 Reliability Data .PDF