4 mA TO 20 mACURRENT LOOP

ACTUATORCONTROL

SYSTEMCONTROLLER/PROCESSOR

nanoDACLOOP

INTERFACEDRIVER

CLEAR

AVDO GND

–VSENSE

CLRSEL

AVSS REFIN

VOUT

+VSENSE

REXT

CONTROL

AD5748/AD5750/AD5751

VIN

+

–

FAULT

POWER-ONRESET

RANGESCALING

LOGIC INTERFACE CRC-8 IOUTV-TO-I

VOLTAGE

OVERTEMPERATUREOPEN

SHORTRANGE

Programmable Current and Voltage Output Drivers Simplify Design of 4 mA to 20 mA Communication LoopsThe ever pressing need to maximize system productivity and overall system reliability within the industrial control environment is driving demand for high performance, highly configurable loop interface and actuation control solutions. ADI offers a complete portfolio of footprint and software-compatible loop interface drivers that set a new industry standard for performance and feature set. Designed to meet the communication needs of industrial control systems, ADI’s loop interface drivers offer easy to use, flexible solutions, which require minimum external components to realize specified performance.

The single-channel AD5750 can handle virtually all standard voltage and current analog output signaling requirements with selectable hardware or software programmability. Alternatively, the AD5749 caters to those who require standard current outputs only. Offering extensive self-diagnostic features, the AD5750 family provides a robust solution for single- and multichannel analog I/O systems, making troubleshooting quick and easy.

These drivers are ideally suited for use with ADI’s low voltage, single-supply nanoDAC® family (for example, AD5662, AD5664, AD5668), conditioning their output to provide the desired loop response. The low voltage analog output generated by ADI’s nanoDAC family interfaces effortlessly with the AD5750 family of drivers to reduce design complexity, enabling faster design cycles and reduced development cost.

Features

• Configurable voltage and current output ranges

• IOUT ranges: 4 mA to 20 mA, 0 mA to 20 mA, 0 mA to 24 mA, ±20 mA, and ±24 mA

• VOUT ranges: 0 V to 5 V, 0 V to 10 V, ±5 V, and ±10 V

• Threefold improvement in performance over competing offers with total unadjusted error (TUE) of ±0.08% FSR

• Extensive diagnostic features and output fault detection

• Configured via hardware or software

• High compliance voltage up to 55 V

• Extended temperature range from –40°C to +125°C

• Small package: 5 mm × 5 mm, 32-lead LFCSP

Loop interface driver solutions.

Output drivers for industrial designs.

Programmable Current and Voltage Output Drivers

www.analog.com/inamps

Industrial Output Driver ICs*Part Number

Output Type

Voltage Range (V) Current Range (mA)Input Voltage

Range (V)Description

AD5750Voltage or

current0 to 5, 0 to 10, ±5, ±10

with 20% overrange

4 to 20, 0 to 20, 0 to 24, ±20,

±24 with 2% overrange0 to 4.096

Bipolar current and voltage output driver with programmable ranges and analog input range

0 V to 4.096 V

AD5750-1Voltage or

current0 to 5, 0 to 10, ±5, ±10

with 20% overrange4 to 20, 0 to 24, ±20, ±24 with 2% overrange

0 to 2.5Bipolar current and voltage output driver with programmable ranges and analog input range

0 V to 2.5 V

AD5751Voltage or

current0 to 5, 0 to 10, 0 to 40 with 20% overrange

0 to 20, 0 to 24, 4 to 20 with 2% overrange

0 to 4.096Unipolar current and voltage output driver with

programmable ranges and 55 V compliance

AD5748Voltage or

current0 to 5, 0 to 10.5, ±10.5

with 20% overrange4 to 21,

0 to 21 with 2% overrange0 to 4.096

Current and voltage output driver with programmable ranges and analog input range

0 V to 4.096 V, 24 V compliance

AD5749 Current N/A0 to 24,

4 to 20 with 2% overrange0 to 4.096

Unipolar current output driver with programmable ranges and 55 V compliance

*Available in 32-lead LFCSP.

nanoDAC ConvertersPart Number

Channels Resolution Package Description

AD5512A 1 12 16-lead LFCSP2.7 V to 5.5 V, SPI, unbuffered voltage output 12-bit

DAC with 1 LSB INL and 1 µs settling time

AD5541A 1 1610-lead MSOP, 10-lead LFCSP,

8-lead LFCSP2.7 V to 5.5 V, SPI, unbuffered voltage output 16-bit DAC with

1 LSB INL and 1 µs settling time; AD5542A for bipolar operation

AD5620 1 12 8-lead SOT-23, 8-lead MSOP2.7 V to 5.5 V, SPI, rail-to-rail output DAC with

1.25 V/2.5 V, 5 ppm/°C reference

AD5660 1 16 8-lead SOT-23, 8-lead MSOP2.7 V to 5.5 V, SPI, rail-to-rail output DAC with

1.25 V/2.5 V, 5 ppm/°C referenceAD5662 1 16 8-lead SOT-23, 8-lead MSOP 2.7 V to 5.5 V, SPI, rail-to-rail output DAC

AD5623R 2 12 10-lead MSOP, 10-lead LFCSP2.7 V to 5.5 V, SPI, rail-to-rail output DAC with 1.25 V/2.5 V,

5 ppm/°C reference, LDAC and CLR pinAD5663/ AD5663R

2 16 10-lead MSOP, 10-lead LFCSP2.7 V to 5.5 V, SPI, rail-to-rail output DAC with LDAC and CLR

pin; AD5663R contains a 1.25 V/2.5 V, 5 ppm/°C referenceAD5624/ AD5624R

4 12 10-lead MSOP, 10-lead LFCSP2.7 V to 5.5 V, SPI, rail-to-rail output DAC. AD5624R

contains a 1.25 V/2.5 V, 5 ppm/°C reference

AD5664/ AD5664R

4 16 10-lead MSOP, 10-lead LFCSP2.7 V to 5.5 V, SPI, rail-to-rail output DAC. AD5664R

contains a 1.25 V/2.5 V, 5 ppm/°C reference

AD5628 8 12 16-lead TSSOP, 16-lead LFCSP2.7 V to 5.5 V, SPI, rail-to-rail output DAC with 1.25 V/2.5 V,

5 ppm/°C reference, LDAC and CLR pin

AD5668 8 16 16-lead TSSOP, 16-lead LFCSP2.7 V to 5.5 V, SPI, rail-to-rail output DAC with 1.25 V/2.5 V,

5 ppm/°C reference, LDAC and CLR pin

Circuits from the Lab™ Reference CircuitsADI’s reference circuits are engineered and tested for quick and easy system integration to help solve today’s relevant design challenges.

+

SCLK

VREF

VIN VOUT

VDD

VDD

VSS

10�F 0.1�F

VINVOUT

IOUT

VREFIN

VFB

VOUTDIN

DVCC

0V TO 5V,0V TO 10V±5V, ±10V

4mA TO 20mA,±20mA

GND

GND

AD5662

ADR444

AD5750

SYNC

SYNCB

SDIN

SCLK

SYNCA

SCLK

SDIN

SDO

–15V

SYNC

SCLK

SDIN

SDO

+10�F 0.1�F

0.1�F

+15V+15V

+5V

+10�F 0.1�F

+10�F 0.1�F0.1�F

Typical application circuit for 4 mA to 20 mA communication. To read the circuit note and download design files, visit www.analog.com/CN0203.

LinksProcess control microsite: http://processcontrol.analog.com New industrial brochure: www.analog.com/v10industrial nanoDAC page: www.analog.com/nanoDACs

Webinars on process control:

www.analog.com/architectures_processcontrol_techonline www.analog.com/architectures_processcontrol

www.analog.com/inamps

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