Part A
AD5420AREZ
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 2718 個数
- Package
- TSSOP-24
- Series
- データ取得 - デジタル/アナログコンバータ (DAC)
Replacement verdict
Compatible functional replacement candidate
The AD5420AREZ and AD5420AREZ-REEL7 are functionally identical single-channel 16-bit serial input 4-20 mA current source DACs in the same 24-lead TSSOP package. The only difference is the packaging format: the AD5420AREZ is supplied in tubes, while the AD5420AREZ-REEL7 is supplied on a 7-inch tape and reel. Both parts share identical electrical specifications, pinout, and operating temperature range, making them fully interchangeable for design and production purposes. The choice between them is purely a matter of assembly line packaging preference.
Resolution and Accuracy
High match
Output Current Range
High match
Package and Pinout
High match
Operating Temperature Range
High match
Parts at a glance
Part B
AD5420AREZ-REEL7
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 2009 個数
- Package
- TSSOP-24
- Series
- データ取得 - デジタル/アナログコンバータ (DAC)
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD5420AREZ | AD5420AREZ-REEL7 | Why it matters |
|---|---|---|---|
| Manufacturer | Analog Devices Inc. | Analog Devices Inc. | Identical manufacturer ensures the same design, process, and quality standards for both parts. |
| Product Category | Digital to Analog Converters (DAC) | Digital to Analog Converters (DAC) | Confirms both parts serve the same functional role in a circuit. |
| Resolution | 16 bit | 16 bit | Resolution determines the smallest analog output step and overall precision of the DAC. |
| Number of DAC Channels | 1 | 1 | Channel count must match the system architecture for direct substitutability. |
| Output Type | Current - Buffered | Current - Buffered | The output type must match the load and signal chain requirements of the application. |
| Data Interface | SPI, DSP | SPI, DSP | Interface compatibility ensures the part can communicate with the existing controller without redesign. |
| Supply Voltage | 2.7 V to 5.5 V (digital), 10.8 V to 40 V (analog) | 2.7 V to 5.5 V (digital), 10.8 V to 40 V (analog) | Supply voltage ranges must be compatible with the board power rails for drop-in replacement. |
| Operating Temperature Range | -40°C to 85°C | -40°C to 85°C | Temperature range affects reliability and suitability for industrial or outdoor environments. |
| Mounting Type | Surface Mount | Surface Mount | Mounting type must match the PCB footprint and assembly process. |
| Packaging | Tube | Tape & Reel (REEL7) | Packaging differs for automated assembly versus manual handling, but the die and electrical performance are identical. |
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Send your BOM and application constraints for technical and sourcing review.
Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD5420AREZ | AD5420AREZ-REEL7 |
|---|---|---|
| Part Status | Active | Active |
| Number of Bits | 16 | 16 |
| Number of D/A Converters | 1 | 1 |
| Settling Time | 40µs | 40µs |
| Output Type | Current - Buffered | Current - Buffered |
| Differential Output | No | No |
| Data Interface | SPI, DSP | SPI, DSP |
| Reference Type | External, Internal | External, Internal |
| Voltage - Supply, Analog | 10.8V ~ 40V | 10.8V ~ 40V |
| Voltage - Supply, Digital | 2.7V ~ 5.5V | 2.7V ~ 5.5V |
| INL / DNL(LSB) | -, ±1 (Max) | -, ±1 (Max) |
| Architecture | R-2R | R-2R |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
Frequently asked questions
What is the difference between AD5420AREZ and AD5420AREZ-REEL7?
The AD5420AREZ and AD5420AREZ-REEL7 are the same device, a single-channel 16-bit serial input 4 mA to 20 mA current source DAC. The only difference is the packaging format: AD5420AREZ is supplied in tubes, while AD5420AREZ-REEL7 is supplied in tape and reel packaging for automated assembly. Both share the same 24-lead TSSOP package, electrical specifications, and temperature range.
Are the AD5420AREZ and AD5420AREZ-REEL7 electrically and functionally identical?
Yes. Both orderable part numbers refer to the same silicon die and package. The AD5420AREZ-REEL7 is simply the tape and reel variant of the AD5420AREZ. All datasheet specifications, including resolution, output current range, INL, DNL, and supply requirements, apply equally to both.
Can AD5420AREZ and AD5420AREZ-REEL7 be used interchangeably in a design?
Yes, they are interchangeable from a design perspective because they are the same device in the same 24-lead TSSOP package. The choice between them depends only on the manufacturing or procurement preference for tube versus tape and reel packaging.
What is the package and pin configuration of the AD5420AREZ and AD5420AREZ-REEL7?
Both parts are offered in a 24-lead TSSOP (Thin Shrink Small Outline Package) with an exposed pad. The pinout is identical for both orderable part numbers, as documented in the AD5420 datasheet.
What are the key specifications of the AD5420AREZ and AD5420AREZ-REEL7?
Both devices are 16-bit, single-channel, serial input 4 mA to 20 mA current source DACs. Key specifications include a 4 mA to 20 mA output range, ±0.05% typical INL, 0.5 µA typical offset error, and operation from a single 10.8 V to 40 V supply. They also feature an on-chip 5 V reference and a SPI-compatible serial interface. These parameters are identical for both orderable part numbers.
Do the AD5420AREZ and AD5420AREZ-REEL7 have the same operating temperature range?
Yes. Both the AD5420AREZ and AD5420AREZ-REEL7 are specified for the industrial temperature range of −40°C to +105°C, as stated in the AD5420 datasheet.
Which applications are suitable for the AD5420AREZ and AD5420AREZ-REEL7?
Both parts are intended for industrial process control, programmable logic controllers (PLCs), and other systems requiring a precision 4 mA to 20 mA current loop output. The tape and reel version, AD5420AREZ-REEL7, is typically chosen for high-volume automated PCB assembly, while the tube version, AD5420AREZ, is often used for prototyping or low-volume production.