Industrial Current/Voltage
Output Driver,
Programmable Ranges
Preliminary Technical Data
AD5750
Voltage output is provided from a separate pin that can be
configured to provide 0V to 5V, 0V to 10V, ±5V or ±10V
output ranges. An over-range of 20% is available on the voltage
ranges.
FEATURES
Current Output Ranges: 4–20mA, 0–20mA or 0–24mA,
20ma, 24ma
B Grade - 0.1% Total Unadjusted Error (TUE)
A Grade - 0.3% Total Unadjusted Error (TUE)
5ppm/°C Output Drift
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 ±24 V. Output loop compliance is 0 V to AVDD
– 2.5 V.
Voltage Output Ranges: 0-5V, 0-10V, 5V, 10V,
20% over-range
B Grade - 0.1% Total Unadjusted Error (TUE)
A Grade - 0.3% Total Unadjusted Error (TUE)
Flexible Serial Digital Interface
On-Chip Output Fault Detection
PEC Error Checking
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.
Asynchronous CLEAR Function
Power Supply Range
AVDD : = +12V to +24V (+/-10%)
AVSS : = -12V to -24V (+/-10%)
Output Loop Compliance to AVDD – 2.5 V
Temperature Range: -40°C to +105°C
LFCSP Packages
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.
APPLICATIONS
A HW SELECT pin is used to configure the part for hardware
or software mode on power up.
Process Control
Actuator Control
PLC
The total output error is typically ±0.1% in both current mode
and voltage mode.
GENERAL DESCRIPTION
The AD5750 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 AD5750 targets applications in PLC and industrial process
control. The analog input to the AD5750 is provided from a
low voltage, single supply digital-to-analog converter and is
internally conditioned to provide the desired output
current/voltage range.
Table 1. Related Devices
Part Number
Description
AD5422
Single Channel, 16-Bit, Serial
Input Current Source and
Voltage Output DAC
The output current range is programmable across five current
ranges - 4–20mA, 0–20mA or 0–24mA, 20mꢀ ꢀnd 24mꢀ.
Rev. PrC
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