LTC1669 Series

10-Bit Rail-to-Rail Micropower DAC with I2C Interface

Catalog

10-Bit Rail-to-Rail Micropower DAC with I2C Interface

Part	Supplier Device Package	Voltage - Supply, Digital [Max]	Voltage - Supply, Digital [Min]	Number of Bits [custom]	Voltage - Supply, Analog [Min]	Voltage - Supply, Analog [Max]	Settling Time	Data Interface	Mounting Type	INL/DNL (LSB)	Output Type	Reference Type	Package / Case	Package / Case [custom]	Package / Case	Operating Temperature [Max]	Operating Temperature [Min]
Analog Devices LTC1669CMS8#TRPBF	8-MSOP	5.5 V	2.7 V	10	2.7 V	5.5 V	30 µs	I2C	Surface Mount	0.2 LSB 0.5 LSB	Voltage - Buffered	Internal	8-MSOP 8-TSSOP	0.118 in	3 mm	70 °C	0 °C
Analog Devices LTC1669-8CMS8#PBF	8-MSOP	5.5 V	2.7 V	10	2.7 V	5.5 V	30 µs	I2C	Surface Mount	0.2 LSB 0.5 LSB	Voltage - Buffered	Internal	8-MSOP 8-TSSOP	0.118 in	3 mm	70 °C	0 °C
Analog Devices LTC1669-1CS5#TRMPBF		5.5 V	2.7 V	10	2.7 V	5.5 V	30 µs	I2C	Surface Mount	0.2 LSB 0.5 LSB	Voltage - Buffered	Internal	SOT-23-5 Thin TSOT-23-5			70 °C	0 °C
Analog Devices LTC1669-8IMS8#TRPBF	8-MSOP	5.5 V	2.7 V	10	2.7 V	5.5 V	30 µs	I2C	Surface Mount	0.2 LSB 0.5 LSB	Voltage - Buffered	Internal	8-MSOP 8-TSSOP	0.118 in	3 mm	85 °C	-40 °C
Analog Devices LTC1669-1CS5#TRPBF		5.5 V	2.7 V	10	2.7 V	5.5 V	30 µs	I2C	Surface Mount	0.2 LSB 0.5 LSB	Voltage - Buffered	Internal	SOT-23-5 Thin TSOT-23-5			70 °C	0 °C
Analog Devices LTC1669CS5#TRPBF		5.5 V	2.7 V	10	2.7 V	5.5 V	30 µs	I2C	Surface Mount	0.2 LSB 0.5 LSB	Voltage - Buffered	Internal	SOT-23-5 Thin TSOT-23-5			70 °C	0 °C

Catalog

10-Bit Rail-to-Rail Micropower DAC with I2C Interface

Key Features

• Micropower 10-Bit DAC in SOT-23

• Low Operating Current: 60µA

• Ultralow Power Shutdown Mode: 12µA

• 2-Wire Serial Interface Compatible with I2C™

• Selectable Internal Reference or Ratiometric to VCC

• Maximum DNL Error: 0.75LSB

• 8 User Selectable Addresses (MSOP Package)

• Single 2.7V to 5.5V Operation

• Buffered True Rail-to-Rail Voltage Output

• Power-On Reset

• 1.5V VILand 2.1V VIHfor SDA and SCL

• Small 5-Lead SOT-23 and 8-Lead MSOP Packages

Description

The LTC1669 is a 10-bit voltage output DAC with true buffered rail-to-rail output voltage capability. It operates from a single supply with a range of 2.7V to 5.5V. The reference for the DAC is selectable between the supply voltage or an internal bandgap reference. Selecting the internal bandgap reference will set the full-scale output voltage range to 2.5V. Selecting the supply as the reference sets the output voltage range to the supply voltage.The part features a simple 2-wire serial interface compatible with I2C that allows communication between many devices. The internal data registers are double buffered to allow for simultaneous update of several devices at once. The DAC can be put in low current power-down mode for use in power conscious systems.Power-on reset ensures the DAC output is at 0V when power is initially applied, and all internal registers are cleared. The LTC1669 is pin-for-pin compatible with the LTC1663.For SMBus-compatible designs, please refer to the LTC1663.ApplicationsDigital CalibrationOffset/Gain AdjustmentIndustrial Process ControlAutomatic Test EquipmentArbitrary Function GeneratorsBattery-Powered Data Conversion Products