Part A
AD5422BREZ
ADI公司
- Lifecycle
- Active
- Stock
- 5465 件
- Series
- 資料獲取-數模轉換器（DAC）
Replacement verdict
Not a drop-in replacement
The AD5422BREZ and AD5424YRU are not functionally interchangeable. The AD5422BREZ is a single-channel 16-bit current/voltage output DAC with HART connectivity, while the AD5424YRU is a dual-channel 8-bit current-output DAC with no voltage mode or HART support. They differ fundamentally in resolution, channel count, output configuration, and interface protocol, making direct substitution infeasible without complete circuit redesign.
Different resolution
Different channel count
Different output type
Different interface protocol
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD5422BREZ | AD5424YRU | Why it matters |
|---|---|---|---|
| Resolution | 16 bit | 8 bit | Determines the finest output step size; a 16-bit DAC offers 256 times finer granularity than an 8-bit DAC, directly affecting achievable accuracy and control precision. |
| Number of DAC Channels | 1 | 2 | Channel count dictates how many independent analog outputs can be driven; a two-channel part can replace two single-channel devices in multi-loop systems. |
| Output Type | Current and Voltage | Current | Defines the signal format the DAC can produce; voltage output suits direct control loops while current output is preferred for long industrial transmission lines. |
| Interface Type | SPI | Parallel | Determines the host connection scheme; SPI reduces pin count and board routing, while parallel offers faster raw update throughput. |
| Supply Voltage (Analog) | 10.8 V to 40 V | 2.5 V to 5.5 V | Sets the compatible power rail; the wide high-voltage range of one part suits industrial loop supplies while the low-voltage part fits logic-level systems. |
| Operating Temperature Range | -40 °C to +105 °C | -40 °C to +85 °C | Defines the ambient conditions under which the device is guaranteed; a wider range enables use in harsher industrial environments. |
| Package / Case | 24-Lead TSSOP | 16-Lead TSSOP | Affects PCB footprint and layout; different pin counts and body sizes prevent drop-in replacement without board redesign. |
| Mounting Type | Surface Mount | Surface Mount | Confirms both parts use the same assembly process, so board-level manufacturing compatibility is maintained. |
Need help validating a replacement?
Send your BOM and application constraints for technical and sourcing review.
Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD5422BREZ | AD5424YRU |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Number of Bits | 16 | 8 |
| Number of D/A Converters | - | 1 |
| Settling Time | 25µs (V), 40µs (A) (Typ) | 120ns |
| Output Type | Voltage or Current - Buffered | Current - Unbuffered |
| Differential Output | No | Yes |
| Data Interface | SPI, DSP | Parallel |
| Reference Type | External, Internal | External |
| Voltage - Supply, Analog | 10.8V ~ 40V, -3V ~ 26.4V | 2.5V ~ 5.5V |
| Voltage - Supply, Digital | 2.7V ~ 5.5V | 2.5V ~ 5.5V |
| INL / DNL(LSB) | - | ±0.25 (Max), ±0.5 (Max) |
| Architecture | R-2R | R-2R |
| Operating Temperature | -40°C ~ 105°C | -40°C ~ 125°C |
| Base Product Number | AD5422 | - |
| Number of D / A Converters | 1 | - |
| INL / DNL (LSB) | -, ±1.3 (Max) | - |
| Mounting Type | Surface Mount | - |
| Packaging | Tube | - |
Frequently asked questions
What are the primary functional differences between the AD5422BREZ and the AD5424YRU?
The AD5422BREZ is a single-channel, 16-bit, serial-input, voltage-output and current-output DAC designed for industrial process control. The AD5424YRU is an 8-bit, parallel-input, voltage-output DAC with a multiplying input, intended for general-purpose applications. They differ in resolution, input interface, output type, and target application.
Are the AD5422BREZ and AD5424YRU pin-compatible or package-compatible?
No. The AD5422BREZ is offered in a 24-lead TSSOP (RE-24-1) package, while the AD5424YRU is offered in a 16-lead TSSOP (RU-16) package. They have different pin counts, pin functions, and PCB land patterns, so they are not drop-in replacements.
Can the AD5422BREZ and AD5424YRU operate from the same supply voltage?
No. The AD5422BREZ requires an analog supply (AVDD) of +12 V to +48 V for current output or +5 V to +24 V for voltage output, plus a digital supply (DVDD) of +2.7 V to +5.5 V. The AD5424YRU operates from a single +2.5 V to +5.5 V supply. Their supply requirements are not interchangeable.
Do both devices provide a current-loop output for industrial control?
No. Only the AD5422BREZ integrates a 4 mA to 20 mA current-output mode. The AD5424YRU provides a voltage output only and does not include a current-loop driver.
What is the resolution and interface difference between the AD5422BREZ and AD5424YRU?
The AD5422BREZ has 16-bit resolution and uses a serial SPI-compatible interface. The AD5424YRU has 8-bit resolution and uses a parallel interface. These differences affect both the achievable precision and the number of host controller I/O pins required.
Are the AD5422BREZ and AD5424YRU interchangeable in an existing design?
No. Because they differ in resolution, supply voltage, output type, package, and interface, they cannot be substituted without a complete redesign of the analog output stage, power supply, and digital interface. Always verify against the respective manufacturer datasheets before considering any change.