AD5751 Datasheet, PDF (1/22 Pages) Analog Devices – Industrial I/V Output Driver, Single Supply, 60v Compliance, Programmable Ranges

Preliminary Technical Data
FEATURES
Current Output Ranges: 4–20mA, 0–20mA or 0–24mA,
0.1% Total Unadjusted Error (TUE)
5ppm/°C Output Drift
60V MAX IOUT Compliance Voltage
Voltage Output Ranges: 0-5V, 0-10V, 0-40v
20% over-range
0.1% Total Unadjusted Error (TUE)
Flexible Serial Digital Interface
On-Chip Output Fault Detection
PEC Error Checking
Asynchronous CLEAR Function
Power Supply Range
AVDD : = +12V to +60V (MAX)
Output Loop Compliance to AVDD – 2.5 V
Temperature Range: -40°C to +105°C
LFCSP Packages
APPLICATIONS
Process Control
Actuator Control
PLC
GENERAL DESCRIPTION
The AD5751 is a single channel, low-cost, precision,
voltage/current output driver with hardware or software
programmable output ranges. The software ranges are
configured via an SPI/Microwire compatible serial interface.
The AD5751 targets applications in PLC and industrial process
control. The analog input to the AD5751 is provided from a
low voltage, single supply digital-to-analog converter and is
internally conditioned to provide the desired output
current/voltage range.
The output current range is programmable across three current
ranges - 4–20mA, 0–20mA or 0–24mA.
Industrial I/V Output Driver,
Single Supply, 60v Compliance,
Programmable Ranges
AD5751
Voltage output is provided from a separate pin that can be
configured to provide 0V to 5V, 0V to 10V and 0-40V output
ranges. An over-range of 10% is available on the voltage
ranges.
Analog outputs are short and open circuit protected and can
drive capacitive loads of 1uF and inductive loads of 0.1H.
The device is specified to operate with a power supply range
from 12 V to 60 V. Output loop compliance is 0 V to AV_DD –
2.5 V.
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.
The device also includes a power-on-reset function ensuring
that the device powers up in a known state and an
asynchronous CLEAR pin which sets the outputs to zero-scale /
mid-scale voltage output or the low end of the selected current
range.
A HW SELECT pin is used to configure the part for hardware
or software mode on power up.
The total output error is typically ±0.1% in both current mode
and voltage mode.
Table 1. Related Devices
Part Number
AD5422
Description
Single Channel, 16-Bit, Serial
Input Current Source and
Voltage Output DAC
Rev. PrA
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