AD5443 12-Bit High Bandwidth Multiplying DAC's with Serial Interface

The AD5426/AD5432/AD5443 are CMOS 8-, 10-, and 12-bit current output digital-to-analog converters (DACs), respectively. These devices operate from a 2.5 V to 5.5 V power supply, making them suitable for battery-powered applications and many other applications.

These DACs use a double buffered, 3-wire serial interface that is compatible with SPI, QSPI™, MICROWIRE™, and most DSP interface standards. In addition, a serial data out pin (SDO) allows for daisy-chaining when multiple packages are used. Data readback allows the user to read the contents of the DAC register via the SDO pin. On power-up, the internal shift register and latches are filled with 0s and the DAC outputs are at zero scale.

As a result of manufacturing on a CMOS submicron process, the parts offer excellent 4-quadrant multiplication characteristics with large signal multiplying bandwidths of 10 MHz. The applied external reference input voltage, VREF, determines the full-scale output current. An integrated feedback resistor, RFB, provides temperature tracking and full-scale voltage output when combined with an external current to voltage precision amplifier.

The AD5426/AD5432/AD5443 DACs are available in small, 10-lead MSOP packages.

The EVAL-AD5443SDZ/EVAL-AD5446SDZ/EVAL-AD5453SDZ evaluation board is available for evaluating DAC performance. For more information, see the UG-327 evaluation board user guide.

Applications

Portable battery-powered applications
Waveform generators
Instrumentation
Programmable amplifiers and attenuators
Digitally controlled calibration
Programmable filters and oscillators
Composite video
Ultrasound
Gain, offset, and voltage trimming

Features and Benefits

2.5 V to 5.5 V supply operation
50 MHz Serial Interface
10 MHz Multiplying Bandwidth
2.5 MSPS update rate
INL of ±1 LSB for 12-bit DAC
±10 V reference input
Low glitch energy < 2 nV-s
Extended temperature range −40°C to +125°C
10-lead MSOP package

Pin Compatible 8- (AD5426) and 10- (AD5432) Current Output DACs
Guaranteed monotonic
4-quadrant multiplication
Power-on reset with brownout detection
Daisy-chain mode
Readback function
0.4 μA typical power consumption

Digital to Analog Converters

D/A Converters

IBIS Models

AD5443 IBIS Model .IBS

Data Sheets

Document	note
AD5426/AD5432/AD5443: 8-/10-/12-Bit High Bandwidth Multiplying DACs with Serial Interface Data Sheet (Rev. H)	PDF 618 kB

Application Notes

Document	note
AN-1231: AC Signal Processing Using the AD5426/AD5432/AD5443 Current Output DACs (Rev. B)	PDF 87 kB
AN-912: Driving a Center-Tapped Transformer with a Balanced Current-Output DAC (Rev. 0)	PDF 246 kB
AN-320A: CMOS Multiplying DACs and Op Amps Combine to Build Programmable Gain Amplifier, Part 1	PDF 1295 kB
AN-137: A Digitally Programmable Gain and Attenuation Amplifier Design	PDF 52 kB

User Guides

Document	note
UG-327: Evaluating the AD5443, AD5446, and AD5453 Current Output/Serial Input DACs (Rev. B)	PDF 416.45 K

Order Information

Part Number	Package	Packing Qty	Temp Range	Price 100-499	Price 1000+	RoHS
AD5443YRM Production	10 ld MSOP	OTH 50	-40 to 125C	3.57	2.92	N
AD5443YRM-REEL7 Contact ADI	10 ld MSOP	REEL 1000	-40 to 125C	0	0	N
AD5443YRMZ Production	10 ld MSOP	OTH 50	-40 to 125C	3.09	2.53	Y
AD5443YRMZ-REEL Production	10 ld MSOP	REEL 3000	-40 to 125C	0	2.53	Y
AD5443YRMZ-REEL7 Production	10 ld MSOP	REEL 1000	-40 to 125C	0	2.53	Y