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40-Channel, 3 V/5 V, Single-Supply,

Serial, 14-Bit Voltage Output DAC

AD5384

FEATURES

Guaranteed monotonic

INL error: 卤4 LSB max

On-chip 1.25 V/2.5 V, 10 ppm/掳C reference

Temperature range: 鈥?0掳C to +85掳C

Rail-to-rail output amplifier

Power-down

Package type: 100-lead CSPBGA (10 mm 脳 10 mm)

User Interfaces:

Serial (SPI-庐/QSPI-鈩?MICROWIRE-鈩?DSP-compatible,

featuring data readback)

2

I C-庐compatible

INTEGRATED FUNCTIONS

Channel monitor

Simultaneous output update via LDAC

Clear function to user-programmable code

Amplifier boost mode to optimize slew rate

User-programmable offset and gain adjust

Toggle mode enables square wave generation

Thermal monitor

APPLICATIONS

Variable optical attenuators (VOA)

Level setting (ATE)

Optical micro-electro-mechanical systems (MEMS)

Control systems

Instrumentation

FUNCTIONAL BLOCK DIAGRAM

DVDD (脳3)

PD

SYNC/AD 0

DCEN/AD 1

DGND (脳4)

AVDD (脳5)

AGND (脳5)

DAC GND (脳5)

REFGND

REFOUT/REFIN

SIGNAL GND (脳5)

AD5384

1.25V/2.5V

REFERENCE

14

INPUT 14

REG 0

14

m REG 0

c REG 0

14

DAC 14

REG 0

DAC 0

VOUT0

SDO

DIN/SDA

SCLK/SCL

SPI/I

2

C

INTERFACE

CONTROL

LOGIC

STATE

MACHINE

+

CONTROL

LOGIC

14

R

R

14

INPUT 14

REG 1

14

14

m REG 1

c REG 1

14

DAC 14

REG 1

DAC 1

VOUT1

VOUT2

R

R

VOUT4

VOUT3

14

RESET

BUSY

CLR

VOUT0鈥︹€OUT38

14

POWER-ON

RESET

INPUT 14

REG 6

14

14

m REG 6

c REG 6

14

DAC 14

REG 6

DAC 6

VOUT5

VOUT6

R

R

INPUT 14

REG 7

14

m REG 7

c REG 7

14

DAC 14

REG 7

DAC 7

VOUT7

VOUT8

R

R

04652-0-001

39-TO-1

MUX

14

脳5

VOUT39/MON_OUT

LDAC

VOUT38

Figure 1.

Rev. A

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: 781.326.8703

漏 2004 Analog Devices, Inc. All rights reserved.

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