Industrial Current/Voltage Output Driver
with Programmable Ranges
AD5750/AD5750-1
The output current range is programmable across five current
ranges: 4 mA to 20 mA, 0 mA to 20 mA or 0 mA to 24 mA,
FEATURES
Current output ranges: 4 mA to 20 mA, 0 mA to 20 mA or
0 mA to 24 mA, ±20 mA, and ±24 mA
±0.03% FSR total unadjusted error (TUE)
±± ppm/°C typical output drift
20 mA, and 24 mA. An overrange of 2% is available on the
unipolar current ranges.
Voltage output is provided from a separate pin that can
be configured to provide 0 V to 5 V, 0 V to 10 V, 5 V, or
10 V output ranges. An overrange of 20% is available on the
voltage ranges.
Voltage output ranges: 0 V to ± V, 0 V to 10 V, ±± V, and ±10 V,
with 20% overrange
±0.02% FSR TUE
±3 ppm/°C typical output drift
Flexible serial digital interface
On-chip output fault detection
PEC error checking
Analog outputs are short-circuit and open-circuit protected and
can drive capacitive loads of 1 μF and inductive loads of 0.1 H.
The device is specified to operate with a power supply range from
12 V to 24 V. Output loop compliance is 0 V to AVDD − 2.75 V.
Asynchronous CLEAR function
Flexible power-up condition to 0 V or tristate
Power supply range
The flexible serial interface is SPI and MICROWIRE
compatible and can be operated in 3-wire mode to minimize
the digital isolation required in isolated applications. The
interface also features an optional PEC error checking feature
using CRC-8 error checking, useful in industrial environments
where data communication corruption can occur.
AVDD: +12 V (± 10%) to +24 V (± 10%)
AVSS: −12 V (± 10%) to −24 V (± 10%)
Output loop compliance to AVDD − 2.7± V
Temperature range: −40°C to +10±°C
32-lead, ± mm × ± mm LFCSP package
The device also includes a power-on reset function, ensuring
that the device powers up in a known state (0 V or tristate),
and an asynchronous CLEAR pin that sets the outputs to zero
scale/midscale voltage output or the low end of the selected
current range.
APPLICATIONS
Process control
Actuator control
PLCs
An HW SELECT pin is used to configure the part for hardware
or software mode on power-up.
GENERAL DESCRIPTION
The AD5750/AD5750-1 are single-channel, low cost, precision
voltage/current output drivers with hardware- or software-
programmable output ranges. The software ranges are configured
via an SPI-/MICROWIRE™-compatible serial interface. The
AD5750/AD5750-1 target applications in PLC and industrial
process control. The analog input to the AD5750/AD5750-1
is provided from a low voltage, single-supply digital-to-analog
converter (DAC) and is internally conditioned to provide the
desired output current/voltage range. Analog input ranges available
are 0 V to 2.5 V (AD5750-1) or 0 V to 4.096 V (AD5750).
Table 1. Related Device
Part Number Description
AD5422
Single-channel, 16-bit, serial input current
source and voltage output DAC
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 registeredtrademarks arethe property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
www.analog.com
©2009 Analog Devices, Inc. All rights reserved.
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