AD5066 Analog Devices Data Handbook/Manual

Fully Accurate 16-Bit Un Buffered VOUT DAC SPI

Interface 2.7 V to 5.5 V in a TSSOP

Preliminary Technical Data AD5066 FEATURES FUNCTIONAL BLOCK DIAGRAMS Low power Quad 16 bit DAC, ± 1LSB INL Individual reference pins 2.7 V to 5.5 V power supply Unbuffered voltage output capable of driving 60KΩ Fast Settling time of 4 us typically Power-on reset to zero scale or mid-scale Per channel power-down 3 power-down functions Low glitch on power up Hardware LDAC with LDAC override function CLR Function to programmable code Small 16 lead TSSOP Figure 1.AD5066

APPLICATIONS Process control Data acquisition systems Portable battery-powered instruments

Table 1. Related Devices

Digital gain and offset adjustment

Part No. Description

Programmable voltage and current sources

AD5666 Quad,16-bit buffered D/A,16 LSB INL, TSSOP

Programmable attenuators

AD5065/45/25 Quad,16-bit buffered D/A,1 LSB INL, TSSOP

www.BDTIC.com/A AD5064/44/24 Quad 16-bit nano DAC, 1 LSB INL, TSSOP

AD5063/62 16-bit nano DAC, 1 LSB INL, MSOP AD5061 16-/14bit nano DAC, 4 LSB INL, SOT-23 AD5060/40 16-/14bit nano DAC, 1 LSB INL, SOT-23

GENERAL DESCRIPTION The AD5066 is a low power, 16-bit quad-channel, unbuffered The outputs of all DACs can be updated simultaneously using

voltage-out DAC offering relative accuracy specs of 1LSB INL the LDAC function, with the added functionality of user-select-

with individual reference pin and can operate from a single able DAC channels to simultaneously update. There is also an 2.7V to 5.5V. The AD5066 parts also offer a differential asynchronous CLR that clears all DACs to a software-selectable accuracy specification of ±1 LSB. Reference buffers are also

code - 0 V, midscale, or full scale.

provided on-chip. The parts use a versatile 3-wire, low power

Schmitt trigger serial interface that operates at clock rates up to PRODUCT HIGHLIGHTS

50 MHz and is compatible with standard SPI®, QSPI™, 1. Quad channel available in 16-lead TSSOP package. MICROWIRE™, and DSP interface standards. The AD5066

2. Individual voltage reference pins

incorporates a power-on reset circuit that ensures the DAC

3. 16 bit accurate, 1 LSB INL.

output powers up zero scale or midscale and remains there until

a valid write takes place to the device. The AD5066 contain a 4. Low glitch on power-up.

power-down feature that reduces the current consumption of

5. High speed serial interface with clock speeds up to 50 MHz.

the device to typically 330 n A at 5 V and provides software

6. Three power-down modes available to the user.

selectable output loads while in power-down mode. The part

can be placed into power-down mode over the serial interface. 7. Reset to known output voltage (zero scale).

Total unadjusted error for the part is <0.8 m V. Both parts exhibit very low glitch on power-up.

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