LTC1446 Series

Dual 12-Bit Rail-to-Rail Micropower DACs in SO-8

Catalog

Dual 12-Bit Rail-to-Rail Micropower DACs in SO-8

Part	Operating Temperature [Max]	Operating Temperature [Min]	Package / Case	Package / Case [y]	Package / Case [x]	Data Interface	Number of Bits	Supplier Device Package	Architecture	INL/DNL (LSB)	Output Type	Voltage - Supply, Analog	Mounting Type	Voltage - Supply, Digital	Reference Type	Voltage - Supply, Analog [Min]	Voltage - Supply, Analog [Max]	Voltage - Supply, Digital [Max]	Voltage - Supply, Digital [Min]
Analog Devices LTC1446CS8#PBF	70 °C	0 °C	8-SOIC	3.9 mm	0.154 in	SPI	12 bits	8-SO	String DAC	0.2 LSB 2.5 LSB	Voltage - Buffered	5 V	Surface Mount	5 V	Internal
Analog Devices LTC1446LCS8#TRPBF	70 °C	0 °C	8-SOIC	3.9 mm	0.154 in	SPI	12 bits	8-SO	String DAC	0.2 LSB 2.5 LSB	Voltage - Buffered		Surface Mount		Internal	2.7 V	5.5 V	5.5 V	2.7 V
Analog Devices LTC1446LIS8#PBF	85 °C	-40 °C	8-SOIC	3.9 mm	0.154 in	SPI	12 bits	8-SO	String DAC	0.2 LSB 2.5 LSB	Voltage - Buffered		Surface Mount		Internal	2.7 V	5.5 V	5.5 V	2.7 V
Analog Devices LTC1446CS8#TRPBF	70 °C	0 °C	8-SOIC	3.9 mm	0.154 in	SPI	12 bits	8-SO	String DAC	0.2 LSB 2.5 LSB	Voltage - Buffered	5 V	Surface Mount	5 V	Internal
Analog Devices LTC1446IS8#TRPBF	85 °C	-40 °C	8-SOIC	3.9 mm	0.154 in	SPI	12 bits	8-SO	String DAC	0.2 LSB 2.5 LSB	Voltage - Buffered	5 V	Surface Mount	5 V	Internal

Catalog

Dual 12-Bit Rail-to-Rail Micropower DACs in SO-8

Key Features

• Dual DACs with 12-Bit Resolution

• SO-8 Package

• Rail-to-Rail Output Amplifiers

• Internal Reference

• Maximum DNL Error: 0.5LSB

• 3V Operation (LTC1446L): ICC= 650µA Typ

• 5V Operation (LTC1446): ICC= 1000µA Typ

• Settling Time: 14µs to ±0.5LSB

• Power-on Reset Clears DACs to 0V

• 3-Wire Cascadable Serial Interface with 500kHz Update Rate

• Schmitt Trigger On Input Allows Direct Optocoupler Interface

• Low Cost

Description

The LTC1446/LTC1446L are dual 12-bit digital-to-analog converters (DACs) available in an SO-8 package. They are complete with a rail-to-rail voltage output amplifier, an internal reference and an easy-to-use 3-wire cascadable serial interface.The LTC1446 has an internal reference and a full-scale output of 4.095V. It operates from a single 4.5V to 5.5V supply.The LTC1446L has an internal reference and a full-scale output of 2.5V. It operates from a single 2.7V to 5.5V supply.The low power supply current makes the LTC1446 family ideal for battery-powered applications. These DACs are available in space saving 8-pin SO and PDIP packages and require no external components for operation.ApplicationsDigital CalibrationIndustrial Process ControlAutomatic Test EquipmentCellular Telephones