Part A
AD5543BRMZ
Компания Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 5268 ПКС
- Package
- MSOP-8
- Series
- Сбор данных - цифровые в аналоговые преобразователи (DAC)
Replacement verdict
Compatible functional replacement candidate
The AD5541ABRMZ and AD5543BRMZ are both 16-bit single-channel voltage-output DACs in the same 10-lead MSOP package, making them strong functional replacement candidates. However, they differ in digital interface architecture and reference input range, so the replacement is not a direct drop-in and requires validation against the host interface and reference circuitry.
Resolution
High match
Output Type
High match
Digital Interface
Validation required
Reference Input Range
Validation required
Parts at a glance
Part B
AD5541ABRMZ
Компания Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 5473 ПКС
- Package
- MSOP-10
- Series
- Сбор данных - цифровые в аналоговые преобразователи (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 | AD5543BRMZ | Why it matters |
|---|---|---|---|
| Resolution | 16 bit | 16 bit | Both are 16-bit DACs, so resolution is identical and not a differentiator for substitutability. |
| Number of DAC Channels | 1 | 1 | Single-channel architecture in both devices means board-level channel count is unchanged. |
| Interface Type | SPI, QSPI, MICROWIRE, DSP compatible | SPI, QSPI, MICROWIRE, DSP compatible | Matching serial interfaces allow the same host controller and firmware timing to be reused. |
| Output Type | Voltage - unbuffered | Current - unbuffered | Voltage versus current output fundamentally changes the external signal chain, so they are not drop-in substitutes. |
| Reference Type | External | External | Both require an external reference, so reference design and decoupling can remain similar. |
| Supply Voltage | 2.7 V to 5.5 V | 2.7 V to 5.5 V | Identical supply range supports use in the same low-voltage mixed-signal systems. |
| Package / Case | 10-TFSOP, 10-MSOP | 10-TFSOP, 10-MSOP | Same package footprint simplifies PCB layout changes if the output architecture is compatible. |
| Operating Temperature Range | -40°C to 85°C | -40°C to 85°C | Equivalent industrial temperature range means environmental ratings do not block substitution. |
| Settling Time | 1 µs | 0.5 µs | Faster settling in the AD5543BRMZ can affect dynamic performance and timing margins in high-speed control loops. |
| INL / DNL | ±1 LSB INL, ±1 LSB DNL | ±1 LSB INL, ±1 LSB DNL | Matching linearity specifications means static accuracy is comparable between the two parts. |
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 | AD5543BRMZ | AD5541ABRMZ |
|---|---|---|
| Part Status | Active | Active |
| Number of Bits | 16 | 16 |
| Number of D/A Converters | 1 | 1 |
| Settling Time | 500ns (Typ) | 1µs |
| Output Type | Current - Unbuffered | Voltage - Unbuffered |
| Differential Output | No | No |
| Data Interface | SPI | SPI, DSP |
| Reference Type | External | External |
| Voltage - Supply, Analog | 5V | 2.7V ~ 5.5V |
| Voltage - Supply, Digital | 5V | 2.7V ~ 5.5V |
| INL / DNL(LSB) | ±2 (Max), ±1 (Max) | ±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 AD5541ABRMZ and AD5543BRMZ?
The AD5541ABRMZ is a 16-bit unbuffered voltage-output DAC with a 2.5 V to 5.5 V supply range and a 10-pin MSOP package. The AD5543BRMZ is a 16-bit current-output DAC with a 4.5 V to 5.5 V supply range and an 8-pin MSOP package. The AD5541A provides a voltage output directly, while the AD5543 requires an external op-amp for current-to-voltage conversion.
Are the AD5541ABRMZ and AD5543BRMZ pin-compatible?
No. The AD5541ABRMZ is supplied in a 10-lead MSOP, while the AD5543BRMZ is supplied in an 8-lead MSOP. They have different pin counts and pin functions, so they are not drop-in replacements on the same PCB footprint.
Do both DACs have the same resolution and accuracy specifications?
Both are 16-bit DACs. The AD5541ABRMZ offers 16-bit monotonicity and ±1 LSB INL (typical) over its operating temperature range. The AD5543BRMZ also provides 16-bit resolution with ±1 LSB INL (typical). However, because one is voltage-output and the other is current-output, overall system accuracy depends on the external output stage used with the AD5543.
Can the AD5541ABRMZ and AD5543BRMZ operate from the same power supply?
The AD5541ABRMZ operates from a single 2.5 V to 5.5 V supply. The AD5543BRMZ requires a 4.5 V to 5.5 V supply. Therefore, a 5 V supply can power both devices, but a 3.3 V or 2.5 V supply is only compatible with the AD5541ABRMZ, not the AD5543BRMZ.
Which device is better suited for unipolar voltage-output applications?
The AD5541ABRMZ is designed for unipolar voltage-output applications because it integrates an output amplifier that directly provides a buffered voltage output. The AD5543BRMZ is a current-output DAC and requires an external operational amplifier to produce a voltage output, adding board space and design complexity.
What are the interface and reference requirements for these DACs?
Both devices use a 3-wire SPI-compatible serial interface. The AD5541ABRMZ requires an external reference voltage and has a reference input range that supports its 2.5 V to 5.5 V supply. The AD5543BRMZ also requires an external reference and, because it is a current-output DAC, its reference and output amplifier configuration determine the final voltage output range.
Are the AD5541ABRMZ and AD5543BRMZ available in the same package type?
No. The AD5541ABRMZ is available in a 10-lead MSOP (RMZ suffix). The AD5543BRMZ is available in an 8-lead MSOP (RMZ suffix). Both use the same MSOP family but differ in pin count and footprint.