AD5339 Datasheet PDF ( Pinout )

AD5339 Datasheet PDF - Analog Devices

Part Number	*AD5339*
Description	8-/10-/12-Bit DAC
Manufacturers	Analog Devices
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2.5 V to 5.5 V, 250 μA, 2-Wire Interface,

Dual Voltage Output, 8-/10-/12-Bit DACs

AD5337/AD5338/AD5339

FEATURES

AD5337

2 buffered 8-bit DACs in 8-lead MSOP

AD5338, AD5338-1

2 buffered 10-bit DACs in 8-lead MSOP

AD5339

2 buffered 12-bit DACs in 8-lead MSOP

Low power operation: 250 μA @ 3 V, 300 μA @ 5 V

2-wire (I2C-compatible) serial interface

2.5 V to 5.5 V power supply

Guaranteed monotonic by design over all codes

Power-down to 80 nA @ 3 V, 200 nA @ 5 V

3 power-down modes

Double-buffered input logic

Output range: 0 V to VREF

Power-on reset to 0 V

Simultaneous update of outputs (LDAC function)

Software clear facility

Data readback facility

On-chip rail-to-rail output buffer amplifiers

Temperature range: −40°C to +105°C

APPLICATIONS

Portable battery-powered instruments

Digital gain and offset adjustment

Programmable voltage and current sources

Programmable attenuators

Industrial process control

GENERAL DESCRIPTION

The AD5337/AD5338/AD5339 are dual 8-, 10-, and 12-bit

buffered voltage output DACs, respectively. Each part is housed

in an 8-lead MSOP package and operates from a single 2.5 V to

5.5 V supply, consuming 250 μA at 3 V. On-chip output amplifiers

allow rail-to-rail output swing with a slew rate of 0.7 V/μs. A 2-

wire serial interface operates at clock rates up to 400 kHz. This

interface is SMBus compatible at VDD < 3.6 V. Multiple devices

can be placed on the same bus.

The references for the two DACs are derived from one reference

pin. The outputs of all DACs can be updated simultaneously

using the software LDAC function. The parts incorporate a

power-on reset circuit to ensure that the DAC outputs power up

to 0 V and remain there until a valid write to the device takes

place. A software clear function resets all input and DAC

registers to 0 V. A power-down feature reduces the current

consumption of the devices to 200 nA @ 5 V (80 nA @ 3 V).

The low power consumption of these parts in normal operation

makes them ideally suited to portable battery-operated equip-

ment. The power consumption is typically 1.5 mW at 5 V and

0.75 mW at 3 V, reducing to 1 μW in power-down mode.

FUNCTIONAL BLOCK DIAGRAM

VDD

REFIN

LDAC

SCL

SDA

INTERFACE

LOGIC

INPUT

DAC

STRING

DAC A

BUFFER

INPUT

DAC

STRING

DAC B

BUFFER

VOUTA

VOUTB

POWER-ON

RESET

AD5337/AD5338/AD5339

GND

Figure 1.

POWER-DOWN

LOGIC

Rev. C

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.

Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.

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

Tel: 781.329.4700

www.analog.com

AD5337/AD5338/AD5339

AC CHARACTERISTICS

VDD = 2.5 V to 5.5 V; RL = 2 kΩ to GND; CL = 200 pF to GND; all specifications TMIN to TMAX, unless otherwise noted.

Table 2.

Parameter2, 3

Output Voltage Settling Time

AD5337

AD5338

AD5339

Slew Rate

Major Code Transition Glitch Energy

Digital Feedthrough

Digital Crosstalk

DAC-to-DAC Crosstalk

Multiplying Bandwidth

Total Harmonic Distortion

A Version and B Version1

Min Typ Max

8 10

0.7

200

−70

Unit Conditions/Comments

VREF = VDD = 5 V

μs 1/4 scale to 3/4 scale change (0x40 to 0xC0)

μs 1/4 scale to 3/4 scale change (0x100 to 0x300)

μs 1/4 scale to 3/4 scale change (0x400 to 0xC00)

V/μs

nV-s 1 LSB change around major carry

nV-s

kHz VREF = 2 V ± 0.1 V p-p

dB VREF = 2.5 V ± 0.1 V p-p, frequency = 10 kHz

1 Temperature range for A version and B version: −40°C to +105°C; typical at 25°C.

2 Guaranteed by design and characterization; not production tested.

3 See the Terminology section for explanations of the specific parameters.

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AD5339 Datasheet PDF - Analog Devices

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