Part A
AD5541CRZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 6162 PCS
- Package
- SOIC-8
- Series
- Acquisição de dados - Convertedores digitais para analógicos (DAC)
Replacement verdict
Compatible functional replacement candidate
The AD5541CRZ and AD5541AR are functionally compatible 16-bit serial-input voltage-output DACs from the same AD5541 family, sharing identical resolution, interface, and package footprint. The AD5541CRZ offers a tighter linearity grade and a wider specified operating temperature range, making it a valid drop-in replacement for the AD5541AR in most designs, provided the application does not require the AD5541AR's narrower commercial temperature specification. Designers should verify the tighter DNL/INL grade and extended temperature range against their system requirements before substituting.
Resolution
High match
Digital Interface
High match
Package Type
High match
Operating Temperature Range
Validation required
Parts at a glance
Part B
AD5541AR
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 3884 PCS
- Package
- SOIC-8
- Series
- Acquisição de dados - Convertedores digitais para analógicos (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 | AD5541CRZ | AD5541AR | Why it matters |
|---|---|---|---|
| Resolution | 16 bit | 16 bit | Both parts provide 16-bit resolution, so they are functionally equivalent in terms of DAC precision. |
| Number of D/A Converters | 1 | 1 | Both are single-channel DACs, ensuring the same channel count for the target application. |
| Output Type | Voltage - Unbuffered | Voltage - Unbuffered | Identical unbuffered voltage output means the same external output amplifier requirements apply. |
| Interface | SPI, DSP | SPI, DSP | Both support the same serial interface, allowing drop-in compatibility with the same host controller. |
| Reference Type | External | External | Both require an external reference, so the same reference circuitry can be reused. |
| Voltage - Supply, Analog | 2.7V ~ 5.5V | 2.7V ~ 5.5V | Matching analog supply ranges ensure the same power rail design works for either part. |
| Voltage - Supply, Digital | 2.7V ~ 5.5V | 2.7V ~ 5.5V | Identical digital supply range supports the same logic-level interfacing. |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | Same temperature range means both parts are suitable for the same environmental conditions. |
| Package / Case | 8-SOIC | 8-SOIC | Identical package and footprint allow direct board-level substitution without layout changes. |
| Mounting Type | Surface Mount | Surface Mount | Same mounting style ensures compatibility with the same assembly process. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD5541CRZ | AD5541AR |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Number of Bits | 16 | 16 |
| Number of D/A Converters | 1 | 1 |
| Settling Time | 1µs (Typ) | 1µs (Typ) |
| Output Type | Voltage - Unbuffered | Voltage - Unbuffered |
| Differential Output | No | No |
| Data Interface | SPI, DSP | SPI, DSP |
| Reference Type | External | External |
| Voltage - Supply, Analog | 2.7V ~ 5.5V | 2.7V ~ 5.5V |
| Voltage - Supply, Digital | 2.7V ~ 5.5V | 2.7V ~ 5.5V |
| INL / DNL(LSB) | ±0.5, ±0.5 | ±0.5, ±0.5 |
| Architecture | R-2R | R-2R |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 125°C |
Frequently asked questions
What are the key differences between the AD5541CRZ and the AD5541AR?
The AD5541CRZ and AD5541AR are both 16-bit, single-channel, serial-input voltage-output DACs from Analog Devices. The primary difference is their specified grade and package. The AD5541AR is specified over the industrial temperature range of −40°C to +85°C and is available in a 16-lead SOIC package. The AD5541CRZ is specified over the commercial temperature range of 0°C to +70°C and is available in a 16-lead SOIC package. The "Z" suffix in AD5541CRZ indicates a lead-free/RoHS-compliant package, while the AD5541AR may be supplied in a standard leaded package depending on the ordering option.
Are the AD5541CRZ and AD5541AR functionally interchangeable in a design?
Functionally, both devices provide the same 16-bit DAC resolution, serial interface, and output voltage range. However, they are not necessarily drop-in replacements because the AD5541AR is specified over the industrial temperature range while the AD5541CRZ is specified over the commercial temperature range. A design that requires operation below 0°C or above +70°C should use the AD5541AR or another industrial-grade equivalent. Additionally, the lead-free/RoHS status of the AD5541CRZ may affect solder process compatibility compared to a leaded AD5541AR.
What is the resolution and architecture of the AD5541CRZ and AD5541AR?
Both the AD5541CRZ and AD5541AR are 16-bit, unbuffered voltage-output digital-to-analog converters. They use a segmented R-2R ladder architecture and provide a single-ended voltage output. The devices operate from a single 2.7 V to 5.5 V supply and include a serial interface compatible with SPI, QSPI, MICROWIRE, and DSP interface standards.
What are the operating temperature ranges for the AD5541CRZ and AD5541AR?
The AD5541AR is specified for the industrial temperature range of −40°C to +85°C. The AD5541CRZ is specified for the commercial temperature range of 0°C to +70°C. These temperature grades are defined by Analog Devices and should be observed when selecting a device for a given application environment.
Do the AD5541CRZ and AD5541AR differ in package and RoHS compliance?
Both devices are offered in a 16-lead SOIC package. The AD5541CRZ is supplied in a lead-free, RoHS-compliant package, as indicated by the "Z" suffix in the part number. The AD5541AR may be available in either a leaded or lead-free package depending on the specific ordering code; designers should verify the exact package and RoHS status from the manufacturer's ordering guide or distributor listing before production.
What is the power supply range and reference input requirement for the AD5541CRZ and AD5541AR?
Both the AD5541CRZ and AD5541AR operate from a single supply voltage of 2.7 V to 5.5 V. They require an external reference voltage input, which sets the full-scale output voltage. The reference input range is typically 2 V to VDD, and the devices draw a low supply current suitable for portable and battery-powered applications. These parameters are common to both grades.
Which device should be selected for an industrial application with wide temperature variation?
For an industrial application that must operate over −40°C to +85°C, the AD5541AR is the appropriate choice because it is specified over that temperature range. The AD5541CRZ is only specified from 0°C to +70°C and may not meet performance requirements outside that range. If RoHS compliance is also required, verify whether an industrial-grade, lead-free version such as the AD5541ARZ is available.
Are the AD5541CRZ and AD5541AR pin-compatible?
Yes, both the AD5541CRZ and AD5541AR are offered in the same 16-lead SOIC package with the same pinout. This means they are pin-compatible when the package type and temperature grade requirements are satisfied. However, pin compatibility does not guarantee identical electrical performance over all conditions, so the temperature grade and RoHS differences must still be considered.