Specification	DAC8740HRGER

Interface	UART
Mounting Type	Surface Mount
Package / Case	24-VFQFN Exposed Pad
Supplier Device Package	24-VQFN (4x4)
Voltage - Supply [Max]	5.5 V
Voltage - Supply [Min]	1.71 V

DAC8740H Series

HART®, FOUNDATION Fieldbus™, and PROFIBUS PA-compliant modem with UART interface

Part	Supplier Device Package	Interface	Package / Case	Mounting Type	Voltage - Supply [Max]	Voltage - Supply [Min]
Texas Instruments DAC8740HRGER	24-VQFN (4x4)	UART	24-VFQFN Exposed Pad	Surface Mount	5.5 V	1.71 V
Texas Instruments DAC8740HRGET	24-VQFN (4x4)	UART	24-VFQFN Exposed Pad	Surface Mount	5.5 V	1.71 V

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Tape & Reel (TR)	3000	$ 4.69
Texas Instruments	LARGE T&R	1	$ 5.80
		100	$ 4.72
		250	$ 3.71
		1000	$ 3.15

Description

General part information

DAC8740H Series

The DAC8740H and DAC8741H (DAC874xH) are HART®, FOUNDATION Fieldbus™, and PROFIBUS PA compatible low-power modems designed for industrial process control and industrial-automation applications.

In HART mode, the DAC874xH integrates all of the required circuitry to operate as half-duplex HART physical layer modems, in either slave or master configurations with minimal external components for filtering. In FOUNDATION Fieldbus mode, the DAC874xH integrates all of the required circuitry to operate as half-duplex FOUNDATION Fieldbus compatible H1 controllers and MAUs.

The HART, FOUNDATION Fieldbus, or PROFIBUS PA, data stream can be transferred from the microcontroller through either a UART interface or an integrated FIFO accessed by a SPI interface. The SPI interface includes an SDO pin for daisy-chain support, various interrupts, and other extended features.