AD5066BRUZ-1 AD [Analog Devices], AD5066BRUZ-1 Datasheet

AD5066BRUZ-1

Manufacturer Part Number

AD5066BRUZ-1

Description

Fully Accurate 16-Bit UnBuffered VOUT DAC SPI Interface 2.7 V to 5.5 V in a TSSOP

Manufacturer

AD [Analog Devices]

Datasheet

1.AD5066BRUZ-1.pdf (20 pages)

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Preliminary Technical Data

FEATURES

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

APPLICATIONS

Process control

Data acquisition systems

Portable battery-powered instruments

Digital gain and offset adjustment

Programmable voltage and current sources

Programmable attenuators

GENERAL DESCRIPTION

The AD5066 is a low power, 16-bit quad-channel, unbuffered

voltage-out DAC offering relative accuracy specs of 1LSB INL

with individual reference pin and can operate from a single

2.7V to 5.5V. The AD5066 parts also offer a differential

accuracy specification of ±1 LSB. Reference buffers are also

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

Schmitt trigger serial interface that operates at clock rates up to

50 MHz and is compatible with standard SPI®, QSPI™,

MICROWIRE™, and DSP interface standards. The AD5066

incorporates a power-on reset circuit that ensures the DAC

output powers up zero scale or midscale and remains there until

a valid write takes place to the device. The AD5066 contain a

power-down feature that reduces the current consumption of

the device to typically 330 nA at 5 V and provides software

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

can be placed into power-down mode over the serial interface.

Total unadjusted error for the part is <0.8 mV. Both parts

exhibit very low glitch on power-up.

Rev. PrB

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rights of third parties that may result from its use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks and registered trademarks are the property of their respective owners.

Fully Accurate 16-Bit UnBuffered V

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

Fax: 781.461.3113

Table 1. Related Devices

Part No.

AD5666

AD5065/45/25

AD5064/44/24

AD5063/62

AD5061

AD5060/40

The outputs of all DACs can be updated simultaneously using

the LDAC function, with the added functionality of user-select-

able DAC channels to simultaneously update. There is also an

asynchronous CLR that clears all DACs to a software-selectable

code - 0 V, midscale, or full scale.

PRODUCT HIGHLIGHTS

Quad channel available in 16-lead TSSOP package.

Individual voltage reference pins

16 bit accurate, 1 LSB INL.

Low glitch on power-up.

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

Three power-down modes available to the user.

Reset to known output voltage (zero scale).

Interface 2.7 V to 5.5 V in a TSSOP

FUNCTIONAL BLOCK DIAGRAMS

Description

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

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

Quad 16-bit nanoDAC, 1 LSB INL, TSSOP

16-bit nanoDAC, 1 LSB INL, MSOP

16-/14bit nanoDAC, 4 LSB INL, SOT-23

16-/14bit nanoDAC, 1 LSB INL, SOT-23

Figure 1.AD5066

OUT

AD5066

www.analog.com

DAC SPI

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