AD5570 True Accuracy, 16-Bit ±12 V/±15 V, Serial Input Voltage Output D/A Converter

1 LSB maximum INL and DNL. Buffered voltage output up to ±14 V. Output controlled during power-up. On-board reference buffers. Wide temperature range of −40°C to +125°C. Applications Industrial automation Automatic test equipment Process control Data acquisition systems General-purpose instrumentation

The AD5570 is a single 16-bit serial input, voltage output DAC that operates from supply voltages of ±11.4 V up to ±16.5 V. Integral linearity (INL) and differential nonlinearity (DNL) are accurate to 1 LSB. During power-up, when the supply voltages are changing, VOUT is clamped to 0 V via a low impedance path.

The AD5570 DAC comes complete with a set of reference buffers. The reference buffers allow a single, positive reference to be used. The voltage on REFIN is gained up and inverted internally to give the positive and negative reference for the DAC core. Having the reference buffers on-chip eliminates the need for external components such as inverters, precision amplifiers, and resistors, thereby reducing the overall solution size and cost.

The AD5570 uses a versatile 3-wire interface that is compatible with SPI®, QSPI™, MICROWIRE™, and DSP® interface standards. Data is presented to the part as a 16-bit serial word. Serial data is available on the SDO pin for daisy-chaining purposes. Data readback allows the user to read the contents of the DAC register via the SDO pin.

Features on the AD5570 include LDAC which is used to update the output of the DAC. The device also has a power-down pin (PD), allowing the DAC to be put into a low power state, and a CLR pin that allows the output to be cleared to 0 V.

The AD5570 is available in a 16-lead SSOP.

Product Highlights

1 LSB maximum INL and DNL.
Buffered voltage output up to ±14 V.
Output controlled during power-up.
On-board reference buffers.
Wide temperature range of −40°C to +125°C.

Features and Benefits

Full 16-bit performance
1 LSB max INL and DNL
Output voltage range up to ±14 V
On-board reference buffers, eliminating the need for a negative reference
Temperature ranges of −40°C to +85°C for A/B version/−40°C to +125°C for W/Y version

Controlled output during power-on
Settling time of 10 µs to 0.003%
Clear function to 0 V
Asynchronous update of outputs (LDAC pin)
Power-on reset
Serial data output for daisy chaining
Data readback facility

Digital to Analog Converters

D/A Converters

Data Sheets

Document	note
AD5570: True Accuracy, 16-Bit ±12 V/±15 V, Serial Input Voltage Output DAC Data Sheet (Rev. C)	PDF 1188 kB

User Guides

Document	note
UG-384: Evaluation Board for the AD5570 16-Bit ±12 V/±15 V Serial Input Voltage Output DAC	PDF 277 kB

Order Information

Part Number	Package	Packing Qty	Temp Range	Price 100-499	Price 1000+	RoHS
AD5570ARS Last Time Buy	16 ld SSOP	OTH 77	-40 to 85C	0	0	N
AD5570ARSZ Production	16 ld SSOP	OTH 77	-40 to 85C	21.96	18.43	Y
AD5570ARSZ-REEL Production	16 ld SSOP	REEL 1500	-40 to 85C	0	18.43	Y
AD5570ARSZ-REEL7 Production	16 ld SSOP	REEL 500	-40 to 85C	0	18.43	Y
AD5570BRS Production	16 ld SSOP	OTH 77	-40 to 85C	0	0	N
AD5570BRSZ Production	16 ld SSOP	OTH 77	-40 to 85C	32.76	27.52	Y
AD5570BRSZ-REEL7 Production	16 ld SSOP	REEL 500	-40 to 85C	0	27.52	Y
AD5570WRS Production	16 ld SSOP	OTH 77	-40 to 125C	27.81	23.34	N
AD5570WRSZ Production	16 ld SSOP	OTH 77	-40 to 125C	25.28	21.22	Y
AD5570WRSZ-REEL7 Production	16 ld SSOP	REEL 500	-40 to 125C	0	21.22	Y
AD5570YRS Production	16 ld SSOP	OTH 77	-40 to 125C	0	0	N
AD5570YRSZ Production	16 ld SSOP	OTH 77	-40 to 125C	37.74	31.67	Y
AD5570YRSZ-REEL7 Production	16 ld SSOP	REEL 500	-40 to 125C	0	31.67	Y