Part A
AD5543BRMZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 5268 PCS
- Package
- MSOP-8
- Series
- Data Acquisition - Digital to Analog Converters (DAC)
Replacement verdict
Compatible functional replacement candidate
The AD5543BRMZ and AD5543BRM are functionally equivalent 16-bit current-output DACs from Analog Devices, with the BRMZ grade offering a RoHS-compliant lead-frame package that is drop-in compatible with the non-Z version in existing designs. Both parts share identical resolution, architecture, and specified performance, making the BRMZ a suitable replacement candidate where lead-free compliance is required.
Resolution
High match
Output Type
High match
Package Type
High match
RoHS Compliance
Validation required
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD5543BRMZ | AD5543BRM | Why it matters |
|---|---|---|---|
| Resolution | 16 bits | 16 bits | Both parts provide the same DAC resolution, so they are functionally equivalent in terms of output precision. |
| Number of DAC Channels | 1 | 1 | Identical channel count means either part can serve the same single-channel signal generation role. |
| Interface Type | SPI | SPI | The same serial interface ensures both parts are compatible with the same host controller and firmware. |
| Supply Voltage | 5 V | 5 V | Matching supply requirements allow either device to be used in the same power architecture. |
| Package Type | 10-Lead MSOP | 10-Lead MSOP | The same package footprint means the parts are physically interchangeable on a PCB. |
| Operating Temperature Range | -40°C to +125°C | -40°C to +85°C | The wider temperature range of the BRMZ version makes it suitable for more demanding industrial or automotive environments. |
| RoHS Compliance | RoHS Compliant | Non-RoHS | RoHS compliance affects regulatory acceptance and environmental disposal requirements in many markets. |
| Lead Finish | Matte Tin | Tin/Lead | Different lead finishes influence solderability, whisker risk, and compliance with lead-free manufacturing processes. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD5543BRMZ | 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 | 500ns (Typ) | 500ns (Typ) |
| Output Type | Current - Unbuffered | Current - Unbuffered |
| Differential Output | No | No |
| Data Interface | SPI | SPI |
| Reference Type | External | External |
| Voltage - Supply, Analog | 5V | 5V |
| Voltage - Supply, Digital | 5V | 5V |
| INL / DNL(LSB) | ±2 (Max), ±1 (Max) | ±2 (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 the AD5543BRMZ and the AD5543BRM?
The AD5543BRMZ is the RoHS-compliant, lead-free version of the AD5543BRM. Both are 16-bit current-output digital-to-analog converters in a 10-lead MSOP package. The primary difference is the package/ordering option: the "Z" suffix indicates RoHS compliance and a lead-free assembly, while the AD5543BRM is the non-RoHS version. Electrical specifications and functional operation are identical per the Analog Devices datasheet.
Are the AD5543BRMZ and AD5543BRM electrically and functionally interchangeable?
Yes. Both devices share the same 16-bit resolution, current-output R-2R architecture, SPI-compatible serial interface, and specified operating temperature range. The AD5543BRMZ is simply the RoHS-compliant ordering variant of the AD5543BRM, so they are functionally interchangeable in designs that do not have a specific non-RoHS requirement.
What is the resolution and architecture of the AD5543BRMZ and AD5543BRM?
Both are 16-bit multiplying DACs using a current-output R-2R ladder architecture. They provide 16-bit resolution with a serial input interface and are specified for operation from a single +5 V supply or dual ±5 V supplies, depending on the configuration.
What package do the AD5543BRMZ and AD5543BRM use?
Both devices are offered in a 10-lead MSOP (Mini Small Outline Package). The AD5543BRMZ is the lead-free/RoHS-compliant version of the same 10-lead MSOP package used by the AD5543BRM.
Can the AD5543BRMZ be used as a drop-in replacement for the AD5543BRM?
Yes, from a functional and footprint perspective. Both use the same 10-lead MSOP package with identical pinout and electrical specifications. The AD5543BRMZ is the RoHS-compliant variant, so it can be used as a drop-in replacement where RoHS compliance is required or preferred, provided the assembly process supports lead-free soldering.
What is the interface type of the AD5543BRMZ and AD5543BRM?
Both devices use a 3-wire SPI-compatible serial interface for loading the DAC register. The interface supports clock rates up to 50 MHz per the Analog Devices datasheet, enabling high-speed updates in precision control applications.
Do the AD5543BRMZ and AD5543BRM differ in accuracy or temperature drift specifications?
No. Both the AD5543BRMZ and AD5543BRM are specified with the same 16-bit resolution, integral nonlinearity (INL), differential nonlinearity (DNL), and gain/offset temperature drift characteristics as published in the Analog Devices AD5543 datasheet. The "Z" suffix denotes RoHS compliance only and does not change the electrical performance specifications.