Single-Channel, 16-Bit, Current/Voltage Output DAC,
Functional Safety Approved for Unipolar Current Output
Data Sheet
ADFS5758
configuration. The safe state for the ADFS5758 is open circuit/high
impedance.
FEATURES
Functional safety approved to SIL 2/SC3 for unipolar current
output by TÜV Rheinland, File Number 968/FSP
2055.00/20
Current/voltage output available on a single terminal
Current output ranges: 0 mA to 20 mA, 4 mA to 20 mA,
0 mA to 24 mA, 20 mA, 24 mA, −1 mA to +22 mA
Voltage output ranges (with 20% overrange): 0 V to 5 V,
0 V to 10 V, 5 V, and 10 V
The ADFS5758 is a single-channel, voltage and current output
digital-to-analog converter (DAC) that operates with a power
supply range from −33 V minimum on AVSS to +33 V maximum
on AVDD1 with a maximum operating voltage between the two rails
of 60 V. On-chip dynamic power control (DPC) minimizes
package power dissipation, which is achieved by regulating the
supply voltage (VDPC+) to the VIOUT output driver circuitry from
4.95 V to 27 V using a buck dc-to-dc converter, optimized for
minimum on-chip power dissipation. The CHART pin enables a
HART® signal to be coupled onto the current output.
Advanced on-chip diagnostics
12-bit ADC functioning as an independent monitoring
function that can validate the output and accuracy.
On-chip reference
The device uses a versatile 4-wire serial peripheral interface (SPI)
that operates at clock rates of up to 50 MHz and is compatible with
standard SPI, QSPI™, MICROWIRE™, DSP, and microcontroller
interface standards. The interface also features an optional SPI
cyclic redundancy check (CRC) and a windowed watchdog timer.
The ADFS5758 offers improved diagnostic features from its
predecessors, such as an integrated independent 12-bit diagnostic
analog-to-digital converter (ADC) that can be used to digitize both
internal and external nodes.
DPC for thermal management
User-programmable offset and gain
Robust architecture, including output fault protection
EMC test standards
IEC 61000-4-6 conducted immunity (10 V, Class A)
IEC 61000-4-3 radiated immunity (20 V/m, Class A)
IEC 61000-4-2 ESD ( 6 kV contact, Class B)
IEC 61000-4-4 electrical fast transient (EFT) ( 4 kV, Class B)
IEC 61000-4-5 surge ( 4 kV, Class B)
CISRP 11 radiated emissions (Class B)
32-lead, 5 mm × 5 mm LFCSP
−40°C to +105°C temperature range
PRODUCT HIGHLIGHTS
1. Functional safety approved to SIL 2/SC3 by TÜV Rheinland.
2. Range of advanced diagnostic features, including an
integrated ADC for high reliability.
3. DPC using an integrated buck dc-to-dc converter for thermal
management. When used with the ADP1031, the ADFS5758
enables eight channel to channel isolated outputs at <2 W
dissipated power.
APPLICATIONS
Process control
Actuator control
Channel isolated analog outputs
Programmable logic controller (PLC) and distributed control
system (DCS) applications
HART network connectivity
4. Programmable power control (PPC) mode to enable faster
settling time (15 µs typical).
5. Highly robust with output protection from miswire events
GENERAL DESCRIPTION
( 38 V).
The ADFS5758 is a single-channel, 16-bit, current/voltage output
DAC. The device is functional safety approved for unipolar current
output and is a fully compliant item with a systematic capability of
SC3, which can be used in safety-related applications up to SIL 2,
according to IEC 61508. This arrangement allows a single
ADFS5758 to be used to achieve SIL 2 for a nonredundant
COMPANION PRODUCTS
Product Family: AD5755-1, AD5422, AD5758, AD5753, AD5423
HART Modem: AD5700, AD5700-1
External References: ADR431, ADR3425, ADR4525
Digital Isolators: ADuM142D, ADuM141D
Power: ADP1031, LT8300, ADP2360, ADM6339
Rev. 0
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rights of third parties thatmay result from its use. Specifications subject tochange without notice. No
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