AD5446 Series

12-/14-Bit High Bandwidth Multiplying DACs with Serial Interface

Catalog

12-/14-Bit High Bandwidth Multiplying DACs with Serial Interface

Part	INL/DNL (LSB) [Min]	INL/DNL (LSB)	INL/DNL (LSB) [Max]	Supplier Device Package	Output Type	Package / Case	Package / Case [x]	Package / Case [x]	Voltage - Supply, Analog [Max]	Voltage - Supply, Analog [Min]	Data Interface	Architecture	Operating Temperature [Max]	Operating Temperature [Min]	Reference Type	Mounting Type	Number of Bits	Settling Time	Voltage - Supply, Digital [Min]	Voltage - Supply, Digital [Max]
Analog Devices AD5446YRMZ	-1 LSB	2 LSB	2 LSB	10-MSOP	Current - Unbuffered	10-MSOP 10-TFSOP	3 mm	0.118 in	5.5 V	2.5 V	DSP SPI	R-2R	125 °C	-40 °C	External	Surface Mount	14	110 ns	2.5 V	5.5 V
Analog Devices AD5446YRMZ-RL7	-1 LSB	2 LSB	2 LSB	10-MSOP	Current - Unbuffered	10-MSOP 10-TFSOP	3 mm	0.118 in	5.5 V	2.5 V	DSP SPI	R-2R	125 °C	-40 °C	External	Surface Mount	14	110 ns	2.5 V	5.5 V
Analog Devices AD5446YRM-REEL	-1 LSB	2 LSB	2 LSB	10-MSOP	Current - Unbuffered	10-MSOP 10-TFSOP	3 mm	0.118 in	5.5 V	2.5 V	DSP SPI	R-2R	125 °C	-40 °C	External	Surface Mount	14	110 ns	2.5 V	5.5 V
Analog Devices AD5446YRM-REEL7	-1 LSB	2 LSB	2 LSB	10-MSOP	Current - Unbuffered	10-MSOP 10-TFSOP	3 mm	0.118 in	5.5 V	2.5 V	DSP SPI	R-2R	125 °C	-40 °C	External	Surface Mount	14	110 ns	2.5 V	5.5 V

Catalog

12-/14-Bit High Bandwidth Multiplying DACs with Serial Interface

Key Features

• 12 MHz multiplying bandwidth

• INL of ±0.5 LSB at 12 bits

• Pin-compatible 12-/14-bit current output DAC

• 2.5 V to 5.5 V supply operation

• 10-lead MSOP package

• ±10 V reference input

• 50 MHz serial interface

• 2.7 MSPS update rate

• Extended temperature range: −40°C to +125°C

• 4-quadrant multiplication

• Power-on reset with brownout detection

• 0.4 µA typical current consumption

• Guaranteed monotonic

Description

TheAD5444/ AD5446 are CMOS 12-bit and 14-bit, current output, digital-to-analog converters (DACs). Operating from a single 2.5 V to 5.5 V power supply, these devices are suited for battery-powered and other applications.As a result of the CMOS submicron manufacturing process, these parts offer excellent 4-quadrant multiplication characteristics of up to 12 MHz.These DACs use a double-buffered, 3-wire serial interface that is compatible with SPI®, QSPI™, MICROWIRE™, and most DSP interface standards. On power-up, the internal shift register and latches are filled with 0s, and the DAC output is at zero scale.The applied external reference input voltage (VREF) determines the full-scale output current. These parts can handle ±10 V inputs on the reference, despite operating from a single-supply power supply of 2.5 V to 5.5 V. An integrated feedback resistor (RFB) provides temperature tracking and full-scale voltage output when combined with an external current-to-voltage precision amplifier. The AD5444 / AD5446 DACs are available in small 10-lead MSOP packages, which are pin-compatible with theAD5425/AD5426/AD5432/AD5443family of DACs.The EVAL-AD5443/EVAL-AD5446/EVAL-AD5453 board is available for evaluating DAC performance.APPLICATIONSPortable, battery-powered applicationsWaveform generatorsAnalog processingInstrumentation applicationsProgrammable amplifiers and attenuatorsDigitally controlled calibrationProgrammable filters and oscillatorsComposite videoUltrasoundGain, offset, and voltage trimming