Features: 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
Controlled output during power-on
Temperature range of −40°C to +85°C/−40°C to +125°C
Settling time of 10 s 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 facilityApplicationIndustrial automation
Automatic test equipment
Process control
Data acquisition systems
General-purpose instrumentationPinout
Specifications
| Resolution (Bits) |
16bit |
| DAC Update Rate |
83kSPS |
| DAC Settling Time |
12s |
| # DAC Outputs |
1 |
| DAC Type |
Voltage Out |
| DAC Input Format |
SPI |
| Output FSR |
(Bip 2Vref) |
| Ref Int/Ext |
Ext |
| Supply Vnom |
Dual(+12, -12),Dual(+15, -15) |
| Pwr Diss |
150mW |
| Package |
SOP |
| Parameter |
Rating |
VDD to AGND, AGNDS, DGND
VSS to AGND, AGNDS, DGND
AGND, AGNDS to DGND
REFGND to AGND, ADNDS
REFIN to AGND, AGNDS
REFIN to REFGND
Digital Inputs to DGND
VOUT to AGND, AGNDS
SDO to DGND
Operating Temperature Range:
W, Y Grades
A, B Grades
Storage Temperature Range |
−0.3 V, +17 V
+0.3 V, −17 V
−0.3 V to +0.3 V
VSS − 0.3 V to VDD + 0.3 V
VSS − 0.3 V to VDD + 0.3 V
−0.3 V to +17 V
−0.3 V to VDD + 0.3 V
−0.3 V to VDD + 0.3 V
−0.3 V to +6.5 V
−40°C to +125°C
−40°C to +125°C
−40°C to +85°C
−65°C to +150°C |
Maximum Junction Temperature
(TJ Max) |
150°C |
16-Lead SSOP Package
Power Dissipation
JA Thermal Impedance
Lead Temperature (Soldering 10 s)
IR Reflow, Peak Temperature |
(TJ max TA)/JA
139°C/W
300°C
230°C |
DescriptionThe AD5570 is a single 16-bit serial input, voltage output DAC that operates from supply voltages of ±12 V up to ±15 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 in the format of 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 may be used to update the output of the DAC. The device also has a power-down pin (PD), which allows 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 package.
AD5570 Data Sheet
