The DAC7718 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 dual ±15.5V (or higher) power supplies, or a unipolar 0V to +30V voltage when operating from a +30.5V (or higher) power supply. With a 5.5V reference, the output can either be a bipolar ±16.5V voltage when operating from dual ±17V (or higher) power supplies, 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-code and gain error. In addition, system level calibration can be performed over the entire signal chain. The output range can be offset by using the DAC offset register.
The DAC7718 features a standard, high-speed serial peripheral interface (SPI) that operates at up to 50MHz and is 1.8V, 3V, and 5V logic compatible, to communicate with a DSP or microprocessor. The input data of the device are double-buffered. An asynchronous load input (LDAC) transfers data from the DAC data register to the DAC latch. The asynchronous CLR input sets the output of all eight DACs to AGND. The VMON pin is a monitor output that connects to the individual analog outputs, the offset DAC, the reference buffer outputs, and two external inputs through a multiplexer (mux).
The DAC7718 is pin-to-pin and function-compatible with the DAC8718 (16-bit) and the DAC8218 (14-bit).
| Top-Dokumentation | Typ | Titel | Format-Optionen | Neueste englische Version herunterladen | Datum |
|---|---|---|---|---|---|
| * | Datenblatt | Octal, 12-Bit, Low-Power, High-Voltage Output, Serial Input D/A Converter datasheet (Rev. A) | 15.12.2009 | ||
| Analog Design Journal | Isolated RS-485 transceivers support DMX512 stage lighting & special-effects app | 16.09.2011 | |||
| Analog Design Journal | 3Q 2011 Issue Analog Applications Journal | 16.09.2011 | |||
| Analog Design Journal | The IBIS model, Part 2: Determining the total quality of an IBIS model | 14.03.2011 |
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The DACxx18EVM features the DAC7718, DAC8218, or DAC8718 digital to analog converter. The EVM provides a quick and easy way to evaluate the functionality and performance of this high resolution serial input Digital to Analog Converter (DAC). The DACxx18EVM is designed to work by default for a (...)
The DACxx18EVM features the DAC7718, DAC8218, or DAC8718 digital to analog converter. The EVM provides a quick and easy way to evaluate the functionality and performance of this high resolution serial input Digital to Analog Converter (DAC). The DACxx18EVM is designed to work by default for a (...)
Das DAC Exerciser Program (DXP) ist ein Softwaretool von Texas Instruments zur Evaluierung von DACs ohne die Anforderungen teurer Mustergeneratoren oder des Schreibens komplexer Software. In Verbindung mit einem DAC-EVM von Texas Instruments und einer modularen Hauptplatine ermöglicht es die (...)
| Gehäuse | Pins | CAD-Symbole, Footprints und 3D-Modelle |
|---|---|---|
| VQFN (RGZ) | 48 | Ultra Librarian |
| TQFP (PAG) | 64 | Ultra Librarian |
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