Specification	DAC7728SRTQR

Architecture	String DAC
Data Interface	Parallel
Differential Output	False
INL/DNL (LSB)	±1 (Max)
Mounting Type	Surface Mount
Number of Bits	12 bits
Number of D/A Converters	8
Operating Temperature [Max]	105 ░C
Operating Temperature [Min]	-40 °C
Output Type	Voltage - Buffered
Package / Case	56-VFQFN Exposed Pad
Reference Type	External
Settling Time	15 µs
Supplier Device Package	56-QFN (8x8)
Voltage - Supply, Analog	±4.5V
Voltage - Supply, Analog [Max]	18 V, 9 V
Voltage - Supply, Analog [Min]	3.6 V
Voltage - Supply, Digital [Max]	5.5 V
Voltage - Supply, Digital [Min]	2.7 V

DAC7728 Series

Octal, Low Power, 12-Bit, +/-16.5 V Output Parallel Input Digital-To-Analog Converter

Part	Package / Case	Architecture	Voltage - Supply, Digital [Max]	Voltage - Supply, Digital [Min]	Data Interface	Output Type	INL/DNL (LSB)	Supplier Device Package	Operating Temperature [Min]	Operating Temperature [Max]	Settling Time	Number of Bits	Number of D/A Converters	Voltage - Supply, Analog [Max]	Voltage - Supply, Analog	Voltage - Supply, Analog [Min]	Mounting Type	Reference Type
Texas Instruments DAC7728SRTQR	56-VFQFN Exposed Pad	String DAC	5.5 V	2.7 V	Parallel	Voltage - Buffered	±1 (Max)	56-QFN (8x8)	-40 °C	105 ░C	15 µs	12 bits	8	9 V 18 V	±4.5V	3.6 V	Surface Mount	External
Texas Instruments DAC7728SRTQT	56-VFQFN Exposed Pad	String DAC	5.5 V	2.7 V	Parallel	Voltage - Buffered	±1 (Max)	56-QFN (8x8)	-40 °C	105 ░C	15 µs	12 bits	8	9 V 18 V	±4.5V	3.6 V	Surface Mount	External
Texas Instruments DAC7728SPAGR	64-TQFP	String DAC	5.5 V	2.7 V	Parallel	Voltage - Buffered	±1 (Max)	64-TQFP (10x10)	-40 °C	105 ░C	15 µs	12 bits	8	9 V 18 V	±4.5V	3.6 V	Surface Mount	External

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)	2000	$ 11.20
Texas Instruments	LARGE T&R	1	$ 14.38
		100	$ 12.56
		250	$ 9.69
		1000	$ 8.66

Description

General part information

DAC7728 Series

The DAC7728 is a low-power, octal, 12-bit digital-to-analog converter (DAC). With a 5V reference, the output can either be a bipolar ±15V voltage when operating from a dual ±15.5V (or higher) power supply, or a unipolar 0V to +30V voltage when operating from a +30.5V power supply. With a 5.5V reference, the output can either be ±16.5V for a dual ±17V (or higher) power supply, or a unipolar 0V to +33V voltage when operating from a +33.5V (or higher) power supply. This DAC provides low-power operation, good linearity, and low glitch over the specified temperature range of –40°C to +105°C. This device is trimmed in manufacturing and has very low zero and full-scale error. In addition, user calibration can be performed over the entire signal chain. The output range can be offset by using the DAC Offset Register.

The DAC7728 features a standard, high-speed, 12-bit parallel interface that operates at up to 50MHz and is 1.8V, 3V, and 5V logic compatible, to communicate with a DSP or microprocessor. The eight DACs and the auxiliary registers are addressed with five address lines. The device features double-buffered interface logic. An asynchronous load input (LDAC) transfers data from the DAC data register to the DAC latch. The asynchronousCLRinput sets the output of all eight DACs to AGND. The VMONpin is a monitor output that connects to the individual analog outputs, the offset DAC, and the reference buffer outputs through a multiplexer (mux).

The DAC7728 is pin-to-pin compatible with the DAC8728 (16-bit) and the DAC8228 (14-bit).

Documents

Technical documentation and resources

Octal, 12-Bit, Low-Power, High-Voltage Output, Parallel Input D/A Converter datasheet (Rev. A)

Data sheet