Datasheet AD5751 (Analog Devices)

Industrial I/V Output Driver, Single-Supply, 55 V Maximum Supply, Programmable Ranges Data Sheet AD5751 FEATURES GENERAL DESCRIPTION Current output ranges: 0 mA to 20 mA, 0 mA to 24 mA,
The AD5751 is a single-channel, low cost, precision, voltage/
or 4 mA to 20 mA
current output driver with hardware or software programmable
±0.03% FSR typical total unadjusted error (TUE)
output ranges. The software ranges are configured via an SPI-/
±5 ppm/°C typical output drift
MICROWIRE™-compatible serial interface. The AD5751 targets
2% overrange
applications in PLC and industrial process control. The analog
Voltage output ranges: 0 V to 5 V, 0 V to 10 V, 0 V to 40 V
input to the AD5751 is provided from a low voltage, single-supply
±0.02% FSR typical total unadjusted error (TUE)
digital-to-analog converter (DAC) and is internally conditioned
±3 ppm/°C typical output drift
to provide the desired output current/voltage range.
Overrange capability on all ranges
The output current range is programmable across three current
Flexible serial digital interface
ranges: 0 mA to 20 mA, 0 mA to 24 mA, or 4 mA to 20 mA.
On-chip output fault detection PEC error checking
Voltage output is provided from a separate pin that can be
Asynchronous CLEAR function
configured to provide 0 V to 5 V, 0 V to 10 V, and 0 V to 40 V
Power supply range
output ranges. An overrange is available on the voltage ranges.
AVDD: 12 V (± 10%) to 55 V (maximum)
Analog outputs are short-circuit and open-circuit protected and
Output loop compliance to AVDD − 2.75 V
can drive capacitive loads of 1 μF and inductive loads of 0.1 H.
Temperature range: −40°C to +105°C
The device is specified to operate with a power supply range from
32-lead 5 mm × 5 mm LFCSP package
10.8 V to 55 V. Output loop compliance is 0 V to AVDD − 2.75 V.
APPLICATIONS
The flexible serial interface is SPI and MICROWIRE compatible
Process control
and can be operated in 3-wire mode to minimize the digital
Actuator control
isolation required in isolated applications. The interface also
PLCs
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 (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. An HW SELECT pin is used to configure the part for hardware or software mode on power-up.
Table 1. Related Device Part Number Description
AD5422 Single-channel, 16-bit, serial input current source and voltage output DAC
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Document Outline Features Applications General Description Revision History Functional Block Diagram Specifications Timing Characteristics Timing Diagrams Absolute Maximum Ratings ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Current Output Terminology Theory of Operation Software Mode Currrent Output Architecture Driving Inductive Loads Voltage Output Amplifier Driving Large Capacitive Loads Power-On State of the AD5751 Default Registers at Power-On Reset Function OUTEN Software Control Input Shift Register Readback Operation Hardware Control Transfer Function Detailed Description of Features Output Fault Alert—Software Mode Output Fault Alert—Hardware Mode Voltage Output Short-Circuit Protection Asynchronous Clear (CLEAR) External Current Setting Resistor Programmable Overrange Modes Packet Error Checking Applications Information Transient Voltage Protection Thermal Considerations Layout Guidelines Galvanically Isolated Interface Microprocessor Interfacing Outline Dimensions Ordering Guide