LTC2656BCFE-L16#PBF

Series:	--
Packaging:	Tube
Part Status:	Active
Number of Bits:	16
Number of D/A Converters:	8
Settling Time:	8.9µs (Typ)
Output Type:	Voltage - Buffered
Differential Output:	No
Data Interface:	SPI
Reference Type:	External, Internal
Voltage - Supply, Analog:	2.7 V ~ 5.5 V
Voltage - Supply, Digital:	2.7 V ~ 5.5 V
INL/DNL (LSB):	±2, ±0.3
Architecture:	--
Operating Temperature:	0°C ~ 70°C
Package / Case:	20-TSSOP (0.173", 4.40mm Width) Exposed Pad
Supplier Device Package:	20-TSSOP-EP
Base Part Number:	LTC2656

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Data Acquisition - Digital to Analog Converters (DAC)

The LTC2656BCFE-L16#PBF is a 16-bit digital to analog converter (DAC). It operates from a single +5V suppy, with an output voltage range from 0V to 5V, achieving higher accuracy and resolution than typical DACs. It features a voltage-output mode with 2mV resolution, and includes a built-in high-gain current output amplifier.

Functional Block Diagram

The functional block diagram of the DAC is shown in Figure 1. The input bits of the EEPROM module are inputted to the Microcontroller, which controls and stores the corresponding binary information. The Microcontroller then provides a digital signal to the DAC module through the Serial Peripheral Interface (SPI) communication protocol. The output voltage is then generated by a voltage reference and the digital signal.

Features

The following are the major features of the LTC2656BCFE-L16#PBF:- 16-bit resolution- High accuracy and resolution over typical DACs- Voltage output mode with 2mV resolution- Built-in high gain current output amplifier- 0V to 5V output voltage range- Low power consumption- Multi-channel usage

Application Fields

The LTC2656BCFE-L16#PBF is suitable for a variety of different applications in the fields of industrial, energy and consumer electronics. Its highly accurate and wide voltage output range make it ideal for use in PID controllers, power supplies and automotive audio systems.

Working Principle

The LTC2656BCFE-L16#PBF works on the basis of digital to analog conversion. In this process, digital data is converted into a corresponding analog signal. The digital data is provided by the Microcontroller, and is sent to the DAC via the SPI communication protocol. The DAC then generates an analog signal, which is proportional to the specific digital value of the data. This signal is then collected by the voltage reference, which controls the output voltage range. Finally, a high gain current output amplifier is used to amplify the signal and output an analog signal of high accuracy and resolution.

Conclusion

The LTC2656BCFE-L16#PBF is a 16-bit digital to analog converter (DAC) that offers higher accuracy and resolution than typical DACs. It features a voltage-output mode with 2mV resolution and includes a built-in high-gain current output amplifier for amplifying the output signal. It is suitable for various industrial, energy and consumer electronic applications, and is an ideal choice for PID controllers, power supplies and automotive audio systems.

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