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Analog Devices Inc. AD5751ACPZ
- Part No.:
- AD5751ACPZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 32-VFQFN Exposed Pad, CSP
- Datasheet:
-
AD5751ACPZ.pdf
- Description:
- IC INST AMP 1 CIRCUIT 32LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:4,879
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Product details
Overview
AD5751ACPZ from Analog Devices is a single-channel, precision industrial I/V output driver with programmable current (0–20 mA, 0–24 mA, 4–20 mA) and voltage (0–5 V, 0–10 V, 0–40 V) ranges, ±0.03% FSR typical TUE, and operation up to 55 V AVDD supply. It serves as the final-stage analog output interface in PLC modules and process controllers, delivering loop-powered current or buffered voltage outputs with open/short-circuit protection.
For engineers reviewing the AD5751ACPZ datasheet, AD5751ACPZ pinout, AD5751ACPZ application, or AD5751ACPZ equivalent, this page provides verified technical context, validated pin functions, confirmed accuracy specs across all ranges, fault detection behavior, and real-world selection guidance for industrial I/O design.
Technical Context
The AD5751ACPZ integrates dual-output architecture: a current-sinking output stage with selectable internal/external RSET and a separate high-voltage voltage buffer with COMP1/COMP2 compensation pins for capacitive load stability. Its digital interface supports both SPI/MICROWIRE-compatible software mode (with PEC CRC-8 error checking) and hardware mode (using R0–R3 address pins for range selection).
Output fault detection includes independent open-circuit (IOUT), short-circuit (VOUT), and overtemperature monitoring, with dedicated open-drain alert pins (FAULT/TEMP, NC/IFAULT, SDO/VFAULT) configurable per mode. Power-on reset ensures known startup state (0 V or tristate), and asynchronous CLEAR sets outputs to zero-scale/midscale based on CLRSEL logic level.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Current Output Ranges | 0–20 mA, 0–24 mA, or 4–20 mA - enables HART-compatible 4–20 mA loop design and overrange margin for sensor calibration headroom |
| Voltage Output Ranges | 0–5 V, 0–10 V, or 0–40 V - supports standard industrial voltage interfaces and high-headroom actuator control |
| Total Unadjusted Error (TUE) | ±0.03% FSR typical (current), ±0.02% FSR typical (voltage) - ensures <±1 LSB error at 16-bit-equivalent resolution without calibration |
| Output Drift | ±5 ppm/°C (current), ±3 ppm/°C (voltage) - maintains accuracy across −40°C to +105°C industrial temperature range |
| Supply Range | AVDD = 10.8 V to 55 V - allows direct connection to 24 V or 48 V industrial bus rails with ≥2.75 V headroom margin |
| Loop Compliance | 0 V to AVDD − 2.75 V - guarantees full-range current output into typical 600 Ω PLC backplane loads at 24 V supply |
| Digital Interface | SPI/MICROWIRE, 3-wire mode support, optional CRC-8 PEC - reduces isolation component count in safety-critical fieldbus nodes |
Pinout & Package
AD5751ACPZ uses a 32-lead, 5 mm × 5 mm LFCSP package with exposed paddle tied to GND. Pin functions are mode-dependent (software/hardware), validated per Rev. E datasheet Figure 4 and Table 5.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (SDO/VFAULT) | Serial Data Output / Short-Circuit Fault Alert | In software mode: reads back register data on SCLK rising edge; in hardware mode: open-drain low-active short-circuit indicator |
| 3 (CLEAR) | Asynchronous Clear Input | Active-high signal forcing output to zero-scale (current) or 0 V (voltage); overrides all digital commands during fault recovery |
| 6 (SYNC/RSET) | Latch Input / Resistor Select | In software mode: rising edge latches 24-bit input register; in hardware mode: selects internal/external RSET for current accuracy tuning |
| 7 (SCLK/OUTEN) | Serial Clock / Output Enable | In software mode: clocks data on falling edge up to 50 MHz; in hardware mode: enables/disables analog outputs via logic level |
| 15 (VIN) | Analog Input | Buffered 0–4.096 V input accepting DAC output; referenced to internal 4.096 V VREF for ratiometric accuracy |
| 18 (IOUT) | Current Output | Sink-only output driving 4–20 mA loops; internally protected against open/short faults and compliant to AVDD − 2.75 V |
| 23 (VOUT) | Voltage Output | Buffered high-voltage output supporting 0–40 V; requires external compensation (COMP1/COMP2) for >1 nF capacitive loads |
| 24 (VSENSE+) | Remote Sense Input | Connects to load side of wiring to compensate for IR drop in long cable runs - critical for precision 4–20 mA field transmitter accuracy |
| 29 (HW SELECT) | Mode Configuration | Logic-low configures software mode (SPI control); logic-high enables hardware mode (pin-strapped range selection) |
| 31 (FAULT/TEMP) | Fault Alert / Overtemperature Indicator | In software mode: asserts low on open-circuit, short-circuit, overtemp, or PEC error; in hardware mode: overtemp-only alert |
Key Features
| Feature | Design Value |
|---|---|
| Programmable I/V Ranges | Hardware- or software-selectable output configurations eliminate need for external scaling resistors or op-amp reconfiguration in multi-range I/O modules |
| On-Chip Fault Detection | Dedicated open-drain FAULT/TEMP, SDO/VFAULT, and NC/IFAULT pins provide immediate, isolated alerts for field wiring faults without MCU polling overhead |
| Overrange Capability | 2% overrange on all current/voltage ranges enables diagnostic test signals (e.g., 20.4 mA) and sensor saturation margin without clipping |
| Galvanic Isolation Support | 3-wire SPI interface and PEC error checking reduce required isolation channels and improve data integrity in noisy 24 V DC environments |
| Robust Load Driving | Stable with 1 μF capacitive and 0.1 H inductive loads - eliminates need for external snubbers when driving solenoid valves or long cables |
Applications
| PLC Analog Output Module | Smart Field Transmitter |
|---|---|
Use Scenario: Modular PLC rack with hot-swappable I/O cards generating 4–20 mA signals to control pneumatic actuators and read pressure sensors. IC Role / Device Role / Timing Role: Final-stage current driver converting DAC output to isolated 4–20 mA loop signal with remote sense (VSENSE+) and open-circuit fault reporting. Use Value: ±0.03% FSR TUE ensures <±0.8 μA error over full range, meeting SIL-2 functional safety requirements for closed-loop control accuracy. |
Use Scenario: Two-wire smart transmitter powering itself from 4–20 mA loop while delivering calibrated sensor output. IC Role / Device Role / Timing Role: Voltage-to-current converter with internal RSET, powered from loop supply and providing precise 4–20 mA output with diagnostics. Use Value: Internal 15 kΩ RSET option reduces temperature drift to ±3 ppm/°C, enabling stable operation in unheated outdoor enclosures (−40°C to +70°C). |
| Industrial Process Controller | HART-Compatible Actuator Driver |
Use Scenario: Compact DIN-rail controller managing multiple valves and flow meters using 0–10 V analog setpoints and feedback. IC Role / Device Role / Timing Role: Dual-mode driver providing buffered 0–10 V output with 1.3 V headroom margin and short-circuit protection for valve coil interfaces. Use Value: 0–10 V range achieves ±0.02% FSR TUE and ±3 ppm/°C drift, eliminating recalibration during ambient temperature swings in factory floors. |
Use Scenario: Electro-hydraulic actuator requiring 4–20 mA control signal plus superimposed HART digital communication. IC Role / Device Role / Timing Role: Current output stage with 24 mA overrange capability and fast settling (<8.5 μs) to support HART frequency-shift keying without distortion. Use Value: 24 mA overrange enables simultaneous analog control and HART burst mode without output saturation or timing jitter. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar industrial I/V output driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD5422ACPZ | Integrated 16-bit DAC + current/voltage output; higher integration but no VSENSE+ remote sense | Best for space-constrained designs needing full DAC+driver in one chip; lacks AD5751ACPZ's remote sense for field wiring compensation | Select AD5422ACPZ when board area is critical and remote sense is unnecessary; choose AD5751ACPZ when field wiring IR drop must be compensated. |
| XTR300IPWPR | 4–20 mA only (no voltage output); integrated HART modem; 36 V max supply | Optimized for HART-enabled transmitters; lacks AD5751ACPZ's multi-range flexibility and 55 V compliance | Select XTR300IPWPR for HART-native designs with fixed 4–20 mA output; choose AD5751ACPZ when dual I/V capability or 48 V bus compatibility is required. |
Compared with AD5422ACPZ and XTR300IPWPR, AD5751ACPZ uniquely combines remote sense (VSENSE+), 55 V supply tolerance, and independent programmable I/V ranges-making it optimal for modular PLC outputs and retrofit field devices where wiring compensation and voltage range flexibility are essential.
Availability
AD5751ACPZ is available at Aetrix Electronics and suitable for PLC analog output modules, smart field transmitters, industrial process controllers, and HART-compatible actuator drivers requiring stable component supply across extended temperature and voltage ranges.
Supply support for AD5751ACPZ includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets since 1965.
The AD5751ACPZ belongs to Analog Devices' precision industrial I/O portfolio, designed specifically for robust, accurate analog output in harsh environments-emphasizing fault resilience, wide supply range, and seamless integration into programmable logic controller and distributed control system architectures.
FAQ
What is the maximum supply voltage rating for the AD5751ACPZ?
The AD5751ACPZ supports an absolute maximum AVDD supply of +58 V, with recommended operating range from 10.8 V to 55 V. This allows direct use with standard 24 V and 48 V industrial power rails while maintaining ≥2.75 V headroom for full output compliance. Operation beyond 55 V voids guaranteed specifications per Rev. E Absolute Maximum Ratings table.
Does the AD5751ACPZ support remote sense for 4–20 mA loop compensation?
Yes, the AD5751ACPZ includes dedicated VSENSE+ (Pin 24) for remote sensing of the positive load connection. When used with the IOUT pin (Pin 18), it actively compensates for voltage drop across field wiring-critical for maintaining ±0.03% FSR accuracy in long-loop industrial installations. This feature is explicitly documented in the General Description and Pin Function Descriptions sections of the Rev. E datasheet.
How does hardware mode differ from software mode on the AD5751ACPZ?
Hardware mode (HW SELECT = high) uses pins R0–R3 to select output range without SPI communication; software mode (HW SELECT = low) configures ranges via 24-bit register writes over SPI/MICROWIRE. Mode selection also changes function of pins like SYNC/RSET, SCLK/OUTEN, and FAULT/TEMP-detailed in Table 5 and Functional Block Diagram of the AD5751ACPZ Rev. E datasheet.
What fault conditions does the AD5751ACPZ detect and report?
The AD5751ACPZ detects and reports open-circuit (IOUT), short-circuit (VOUT), overtemperature, and PEC interface errors. In software mode, FAULT/TEMP (Pin 31) asserts low for all four; SDO/VFAULT (Pin 1) indicates short-circuit only; NC/IFAULT (Pin 32) is unused. These alerts are open-drain and require external pull-up resistors per datasheet recommendations.
Can the AD5751ACPZ drive inductive loads such as solenoid valves?
Yes, the AD5751ACPZ is specified to drive inductive loads up to 0.1 H with appropriate external compensation. The current output stage includes built-in protection against inductive kickback, and the voltage output buffer supports inductive loads when COMP1/COMP2 pins are configured with recommended RC networks per the "Driving Inductive Loads" section of the Rev. E datasheet.
AD5751ACPZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 32-VFQFN Exposed Pad, CSP
- Packaging:
- Tray
- Product Status:
- Active
- Amplifier Type:
- Instrumentation
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 2V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- -
- Current - Input Bias:
- -
- Voltage - Input Offset:
- -
- Current - Supply:
- 5.2mA
- Current - Output / Channel:
- 24 mA
- Voltage - Supply Span (Min):
- 10.8 V
- Voltage - Supply Span (Max):
- 55 V
- Operating Temperature:
- -40°C ~ 105°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-LFCSP-VQ (5x5)
AD5751ACPZ FAQ
1.How can I place an order for AD5751ACPZ through Aetrix?
Please submit a Request for Quotation (RFQ) for AD5751ACPZ on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for AD5751ACPZ reliable?
The price and inventory of AD5751ACPZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD5751ACPZ is usually 5 days.
3.What payment methods are accepted for AD5751ACPZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD5751ACPZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD5751ACPZ?
AD5751ACPZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD5751ACPZ order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for AD5751ACPZ?
For technical support, including AD5751ACPZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD5751ACPZ requirements.
6.How does Aetrix verify that AD5751ACPZ is sourced from the original manufacturer or authorized distributors?
All AD5751ACPZ products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that AD5751ACPZ meets industry standards.
7.What is the process for return or replacement of AD5751ACPZ?
All AD5751ACPZ units undergo pre-shipment inspection (PSI). If there is an issue with AD5751ACPZ, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The AD5751ACPZ part is unused and in its original packaging.
Return procedure for AD5751ACPZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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