DAC8218 Series

Octal, Low power ,14-bit, +/-16.5V Output Serial Input Digital-to-Analog Converter

Catalog

Octal, Low power ,14-bit, +/-16.5V Output Serial Input Digital-to-Analog Converter

Part	Architecture	Operating Temperature [Min]	Operating Temperature [Max]	Voltage - Supply, Digital [Max]	Voltage - Supply, Digital [Min]	Settling Time	Output Type	Data Interface	Supplier Device Package	Number of Bits	Reference Type	Voltage - Supply, Analog [Min]	Voltage - Supply, Analog [Max]	Mounting Type	Package / Case	Number of D/A Converters	INL/DNL (LSB)	Utilized IC / Part	DAC Type	Number of DAC's	Supplied Contents
Texas Instruments DAC8218SRGZR	String DAC	-40 °C	105 ░C	5.5 V	2.7 V	15 µs	Voltage - Buffered	SPI	48-VQFN (7x7)	14	External	-4.5 V	18 V	Surface Mount	48-VFQFN Exposed Pad	8	±1 (Max)
Texas Instruments DAC8218EVM						15 µs		SPI		14								DAC8218	Voltage	8	Board(s)
Texas Instruments DAC8218SPAGR	String DAC	-40 °C	105 ░C	5.5 V	2.7 V	15 µs	Voltage - Buffered	SPI	64-TQFP (10x10)	14	External	-4.5 V	18 V	Surface Mount	64-TQFP	8	±1 (Max)
Texas Instruments DAC8218SPAG	String DAC	-40 °C	105 ░C	5.5 V	2.7 V	15 µs	Voltage - Buffered	SPI	64-TQFP (10x10)	14	External	-4.5 V	18 V	Surface Mount	64-TQFP	8	±1 (Max)
Texas Instruments DAC8218SRGZT	String DAC	-40 °C	105 ░C	5.5 V	2.7 V	15 µs	Voltage - Buffered	SPI	48-VQFN (7x7)	14	External	-4.5 V	18 V	Surface Mount	48-VFQFN Exposed Pad	8	±1 (Max)

Catalog

Octal, Low power ,14-bit, +/-16.5V Output Serial Input Digital-to-Analog Converter

Key Features

• Bipolar Output: ±2V to ±16.5VUnipolar Output: 0V to +33V14-Bit ResolutionLow Power: 14.4mW/Ch (Bipolar Supply)Relative Accuracy: 1 LSB MaxLow Zero/Full-Scale ErrorBefore User Calibration: ±2.5 LSB MaxAfter User Calibration: ±1 LSBFlexible System CalibrationLow Glitch: 4nV-sSettling Time: 15µsChannel Monitor OutputProgrammable Gain: x4/x6Programmable OffsetSPI: Up to 50MHz, 1.8V/3V/5V LogicSchmitt Trigger InputsDaisy-Chain with Sleep Mode EnhancementPackages: QFN-48 (7x7mm), TQFP-64 (10x10mm)APPLICATIONSAutomatic Test EquipmentPLC and Industrial Process ControlCommunicationsBipolar Output: ±2V to ±16.5VUnipolar Output: 0V to +33V14-Bit ResolutionLow Power: 14.4mW/Ch (Bipolar Supply)Relative Accuracy: 1 LSB MaxLow Zero/Full-Scale ErrorBefore User Calibration: ±2.5 LSB MaxAfter User Calibration: ±1 LSBFlexible System CalibrationLow Glitch: 4nV-sSettling Time: 15µsChannel Monitor OutputProgrammable Gain: x4/x6Programmable OffsetSPI: Up to 50MHz, 1.8V/3V/5V LogicSchmitt Trigger InputsDaisy-Chain with Sleep Mode EnhancementPackages: QFN-48 (7x7mm), TQFP-64 (10x10mm)APPLICATIONSAutomatic Test EquipmentPLC and Industrial Process ControlCommunications

Description

The DAC8218 is a low-power, octal, 14-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 to achieve ±1 LSB bipolar zero/full-scale error with bipolar supplies, or ±1 LSB zero code/full-scale error with a unipolar supply, over the entire signal chain. The output range can be offset by using the DAC offset register. The DAC8218 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 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, the reference buffer outputs, and two external inputs through a multiplexer (mux). The DAC8218 is pin-to-pin and function-compatible with the DAC8718 (16-bit) and the DAC7718 (12-bit). The DAC8218 is a low-power, octal, 14-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 to achieve ±1 LSB bipolar zero/full-scale error with bipolar supplies, or ±1 LSB zero code/full-scale error with a unipolar supply, over the entire signal chain. The output range can be offset by using the DAC offset register. The DAC8218 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 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, the reference buffer outputs, and two external inputs through a multiplexer (mux). The DAC8218 is pin-to-pin and function-compatible with the DAC8718 (16-bit) and the DAC7718 (12-bit).