AD5415YRUZ-REEL データシートの表示（PDF） - Analog Devices

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AD5415YRUZ-REEL

Dual 12-Bit, High Bandwidth, Multiplying DAC with 4-Quadrant Resistors and Serial Interface

Analog Devices 

Dual 12-Bit, High Bandwidth, Multiplying DAC

with 4-Quadrant Resistors and Serial Interface

AD5415

FEATURES

GENERAL DESCRIPTION

10 MHz multiplying bandwidth

On-chip 4-quadrant resistors allow flexible output ranges

INL of ±1 LSB

24-lead TSSOP package

2.5 V to 5.5 V supply operation

±10 V reference input

50 MHz serial interface

2.47 MSPS update rate

Extended temperature range: −40°C to 125°C

4-quadrant multiplication

Power-on reset

0.5 μA typical current consumption

Guaranteed monotonic

Daisy-chain mode

Readback function

The AD54151 is a CMOS, 12-bit, dual-channel, current output

digital-to-analog converter. This device operates from a 2.5 V to

5.5 V power supply, making it suited to battery-powered appli-

cations and other applications.

As a result of being manufactured on a CMOS submicron process,

this part offers 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.

In addition, this device contains the 4-quadrant resistors necessary

for bipolar operation and other configuration modes.

APPLICATIONS

Portable battery-powered applications

Waveform generators

Analog processing

Instrumentation applications

Programmable amplifiers and attenuators

Digitally controlled calibration

Programmable filters and oscillators

Composite video

Ultrasound

Gain, offset, and voltage trimming

This DAC uses 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

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.

The AD5415 DAC is available in a 24-lead TSSOP package.

1U.S. Patent Number 5,689,257.

FUNCTIONAL BLOCK DIAGRAM

AD5415

VDD

R3A R2_3A R2A

R3

R2

2R

2R

VREFA R1A

R1 RFB

2R 2R

RFBA

SYNC

SCLK

SDIN

SHIFT

REGISTER

INPUT

REGISTER

DAC

REGISTER

12-BIT

R-2R DAC A

IOUT1A

IOUT2A

SDO

LDAC

CLR

GND

POWER-ON

RESET

INPUT

REGISTER

DAC

REGISTER

12-BIT

R-2R DAC B

R3

R2

2R

2R

R3B R2_3B R2B

R1 RFB

2R

2R

VREFB R1B

IOUT1B

IOUT2B

RFBB

Figure 1.

Rev. B

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.

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

Tel: 781.329.4700

www.analog.com

Fax: 781.461.3113© 2004–2010 Analog Devices, Inc. All rights reserved.

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