Part A
AD5541ABRMZ
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 5473 PCS
- Package
- MSOP-10
- Series
- Acquisition de données - convertisseur numérique - analogique (DAC)
Replacement verdict
Compatible functional replacement candidate
The AD5541ABRMZ and AD5543BRM are both 16-bit single-channel voltage-output DACs from Analog Devices, but they differ in digital interface, reference architecture, and package footprint. The AD5541ABRMZ offers a 3-wire SPI interface with external reference, while the AD5543BRM provides a parallel interface with internal reference. Direct drop-in substitution is not possible without interface and reference redesign, but functional equivalence can be achieved with appropriate circuit modifications.
Resolution
High match
Digital Interface
Not compatible
Reference Type
Not compatible
Package Type
Validation required
Parts at a glance
Part B
AD5543BRM
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 8611 PCS
- Package
- TSSOP-8
- Series
- Acquisition de données - convertisseur numérique - analogique (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 | AD5541ABRMZ | AD5543BRM | Why it matters |
|---|---|---|---|
| Resolution | 16 bit | 16 bit | Both DACs provide 16-bit resolution, so they offer the same nominal output granularity for precision control applications. |
| Number of D/A Converters | 1 | 1 | Each device integrates a single DAC channel, so channel count is not a differentiator for substitution. |
| Output Type | Voltage - Unbuffered | Current - Unbuffered | The output type determines the external signal-conditioning circuitry required; a voltage-output DAC and a current-output DAC are not directly interchangeable without additional components. |
| Data Interface | SPI, DSP | SPI, DSP | Both parts use a serial SPI/DSP-compatible interface, allowing similar digital host connections and timing architecture. |
| Voltage - Supply, Analog | 2.7V ~ 5.5V | 5V | The analog supply range affects compatibility with the system power rail; the wider range of the AD5541ABRMZ allows lower-voltage operation. |
| Voltage - Supply, Digital | 2.7V ~ 5.5V | 5V | Digital supply compatibility is critical for direct logic-level interfacing; the AD5541ABRMZ supports a broader digital supply range. |
| Reference Type | External | External | Both require an external reference, so reference design and stability considerations remain similar between the two parts. |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | Identical industrial temperature ranges mean both devices are suitable for the same environmental conditions. |
| Package / Case | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) | Matching package and footprint allow the same PCB land pattern to be used, simplifying physical substitution. |
| Settling Time | 1 µs | 500 ns | Settling time affects achievable update rates and dynamic accuracy; the AD5543BRM is faster, which may matter in high-speed control loops. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD5541ABRMZ | AD5543BRM |
|---|---|---|
| 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 | 500ns (Typ) |
| Output Type | Voltage - Unbuffered | Current - Unbuffered |
| Differential Output | No | No |
| Data Interface | SPI, DSP | SPI |
| Reference Type | External | External |
| Voltage - Supply, Analog | 2.7V ~ 5.5V | 5V |
| Voltage - Supply, Digital | 2.7V ~ 5.5V | 5V |
| INL / DNL(LSB) | ±0.5, ±0.5 | ±2 (Max), ±1 (Max) |
| Architecture | R-2R | R-2R |
| Operating Temperature | -40°C ~ 125°C | -40°C ~ 85°C |
Frequently asked questions
What are the key differences between the AD5541ABRMZ and the AD5543BRM?
The AD5541ABRMZ is a 16-bit voltage-output DAC with a serial interface, specified for 16-bit monotonicity and INL of ±1 LSB, housed in a 10-lead MSOP. The AD5543BRM is a 16-bit current-output (multiplying) DAC with a serial interface, specified for 16-bit monotonicity and INL of ±1 LSB, housed in an 8-lead MSOP. The primary differences are the output type (voltage vs. current), package pin count, and the external output amplifier requirement for the AD5543BRM.
Are the AD5541ABRMZ and AD5543BRM pin-compatible?
No. The AD5541ABRMZ is supplied in a 10-lead MSOP, while the AD5543BRM is supplied in an 8-lead MSOP. They have different pin counts and pin functions, so they are not drop-in replacements for each other.
Can the AD5543BRM be used as a drop-in replacement for the AD5541ABRMZ?
No. The AD5541ABRMZ provides a buffered voltage output, whereas the AD5543BRM provides an unbuffered current output that requires an external op amp and feedback resistor to produce a voltage. The package and pinout also differ, so a direct substitution is not possible without circuit redesign.
What is the resolution and monotonicity specification for both devices?
Both the AD5541ABRMZ and AD5543BRM are 16-bit DACs specified for 16-bit monotonicity over their rated operating temperature range, per the Analog Devices datasheets.
What is the integral nonlinearity (INL) of the AD5541ABRMZ and AD5543BRM?
Both the AD5541ABRMZ and AD5543BRM are specified with an INL of ±1 LSB maximum at 16 bits, according to the Analog Devices datasheets.
Do the AD5541ABRMZ and AD5543BRM use the same serial interface?
Yes. Both devices use a 3-wire or 4-wire SPI-compatible serial interface. However, the exact timing and register configuration should be verified against the respective datasheets before designing a shared interface.
What are the supply voltage requirements for the AD5541ABRMZ and AD5543BRM?
The AD5541ABRMZ operates from a single 2.7 V to 5.5 V supply. The AD5543BRM operates from a single 2.7 V to 5.5 V supply for the digital section and requires an external reference and op amp for the analog output stage. Always confirm the exact supply and reference ranges in the official Analog Devices datasheets.
Which device is better for a design requiring a bipolar output voltage?
The AD5543BRM is typically used in bipolar voltage-output applications because its current-output architecture allows an external op amp and resistor network to generate bipolar outputs. The AD5541ABRMZ has an internal output buffer optimized for unipolar voltage output, so additional external circuitry would be needed for bipolar operation. Verify the reference and amplifier configuration in the datasheets.