LTC7106 Series

A 7-Bit Current DAC with PMBus Interface

Catalog

A 7-Bit Current DAC with PMBus Interface

Part	Reference Type	Mounting Type	Operating Temperature [Min]	Operating Temperature [Max]	Supplier Device Package	INL/DNL (LSB)	Package / Case	Output Type	Voltage - Supply, Analog [Max]	Voltage - Supply, Analog [Min]	Data Interface	Architecture	Voltage - Supply, Digital [Min]	Voltage - Supply, Digital [Max]
Analog Devices LTC7106EDDB#TRMPBF	External	Surface Mount	-40 °C	125 ¯C	10-DFN (3x2)	0.3 LSB 1 LSB	10-WFDFN Exposed Pad	Current - Unbuffered	5.5 V	2.5 V	I2C	Current Source
Analog Devices LTC7106IDDB#TRPBF	External	Surface Mount	-40 °C	125 ¯C	10-DFN (3x2)	0.3 LSB 1 LSB	10-WFDFN Exposed Pad	Current - Unbuffered	5.5 V	2.5 V	I2C	Current Source
Analog Devices LTC7106IDDB-1#TRMPBF	External	Surface Mount	-40 °C	125 ¯C	10-DFN (3x2)	0.3 LSB 1 LSB	10-WFDFN Exposed Pad	Current - Unbuffered	5.5 V	2.5 V	I2C	Current Source	2.5 V	5.5 V
Analog Devices LTC7106EDDB-1#TRPBF	External	Surface Mount	-40 °C	125 °C	10-DFN (3x2)	0.3 LSB 1 LSB	10-WFDFN Exposed Pad	Current - Unbuffered	5.5 V	2.5 V	PMBus/I2C	Current Source

Catalog

A 7-Bit Current DAC with PMBus Interface

Key Features

• ±0.8% IDACPositive Output Current Accuracy (Over Temp)

• ±1.5% IDACNegative Output Current Accuracy (Over Temp)

• PMBus/I2C Compliant Serial Interface

• Input Voltage Range: 2.5V to 5.5V

• High Impedance at IDACOutput When Disabled

• Wide IDACOperation Voltage (0.4V to 2.0V)

• 7-Bit Programmable DAC Output Current for DC/DC VOUTControl

• Wide Range IDACOutput Current: ±16μA to ±256μA

• Programmable Slew Rate: 500ns ~ 3ms per Bit

• Available in a 10-Lead (3mm × 2mm) DFN Package

Description

The LTC7106 is a precision, PMBus controlled, bidirectional current digital-to-analog converter that adjusts the output voltage of any conventional VFBreferenced regulator. The LTC7106 can work with the vast majority of power management controllers or regulators to enable digital control of the output voltage. Internal power-on reset circuitry keeps the DAC output current at zero (high impedance IDAC) until a valid write takes place. Features include a range bit for easy interfacing to almost any impedance resistor divider, and an open-drain GPO output for controlling the Run or Enable pin of the DC/DC regulator. For most applications, the current DAC error is significantly attenuated with proper design. See more detail about VOUTaccuracy in the Applications Information section of this data sheet. The LTC7106 is supported by the ADI LTpowerPlay®development tool with graphical user interface (GUI).ApplicationsGeneral Purpose Power SystemsTelecom SystemsIndustrial Applications