Overview
The AD5758BCPZ, produced by Analog Devices Inc., is a single-channel, voltage and current output digital-to-analog converter (DAC). This device is designed to operate with a wide power supply range from −33 V to +33 V, with a maximum operating voltage between the two rails of 60 V. It features on-chip dynamic power control (DPC) using an integrated buck dc-to-dc converter, which minimizes package power dissipation. The AD5758BCPZ is highly versatile, supporting a 4-wire serial peripheral interface (SPI) with clock rates up to 50 MHz and compatibility with various interface standards.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Power Supply Range | −33 V | +33 V | V | AVSS to AVDD1 | |
| Maximum Operating Voltage | 60 V | V | Between AVSS and AVDD1 | ||
| VDPC+ Voltage Range | 4.95 V | 27 V | V | For VIOUT output driver circuitry | |
| Output Current Ranges (IOUT) | 0 mA | 24 mA | mA | Unipolar and bipolar ranges available | |
| Resolution | 16 Bits | ||||
| DC Output Impedance | 7 mΩ | mΩ | |||
| Short-Circuit Current | 16 mA | mA | Load 1 kΩ | ||
| Capacitive Load Stability | 10 nF | 2 µF | nF/µF | External compensation capacitor of 220 pF connected |
Key Features
- Dynamic Power Control (DPC): Uses an integrated buck dc-to-dc converter to minimize package power dissipation.
- Advanced Diagnostic Features: Includes an integrated 12-bit analog-to-digital converter (ADC) for high reliability.
- HART Compliance: Supports HART® signal coupling onto the current output.
- Robust Output Protection: Line protector on the VIOUT, +VSENSE, and −VSENSE pins for protection against miswire events (±38 V).
- Versatile Interface: 4-wire serial peripheral interface (SPI) with clock rates up to 50 MHz and compatibility with standard SPI, QSPI™, MICROWIRE™, DSP, and microcontroller interface standards.
Applications
The AD5758BCPZ is suitable for various industrial and process control applications, including those requiring isolated analog output modules. It is particularly useful in systems that need high reliability, robust output protection, and advanced diagnostic features. When used with the ADP1031 power management unit/isolator, it can enable eight channel-to-channel isolated outputs with low power dissipation, making it ideal for applications requiring high isolation and low power consumption.
Q & A
- What is the power supply range of the AD5758BCPZ?
The AD5758BCPZ operates with a power supply range from −33 V to +33 V, with a maximum operating voltage between the two rails of 60 V. - What is the resolution of the AD5758BCPZ?
The AD5758BCPZ has a resolution of 16 bits. - Does the AD5758BCPZ support HART signals?
Yes, the AD5758BCPZ supports HART® signals coupled onto the current output. - What is the maximum short-circuit current of the AD5758BCPZ?
The maximum short-circuit current is 16 mA with a load of 1 kΩ. - What is the DC output impedance of the AD5758BCPZ?
The DC output impedance is 7 mΩ. - Can the AD5758BCPZ be used in isolated output modules?
Yes, when used with the ADP1031, it can enable eight channel-to-channel isolated outputs with low power dissipation. - What is the capacitive load stability of the AD5758BCPZ?
The capacitive load stability ranges from 10 nF to 2 µF with an external compensation capacitor of 220 pF connected. - Does the AD5758BCPZ have built-in diagnostic features?
Yes, it includes an integrated 12-bit analog-to-digital converter (ADC) for high reliability. - What is the maximum operating frequency of the SPI interface?
The SPI interface operates at clock rates up to 50 MHz. - Is the AD5758BCPZ robust against miswire events?
Yes, it has line protectors on the VIOUT, +VSENSE, and −VSENSE pins for protection against miswire events (±38 V).
