Part A
AD5664BRMZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 4077 PCS
- Package
- MSOP-10
- Series
- Acquisição de dados - Convertedores digitais para analógicos (DAC)
Replacement verdict
Compatible functional replacement candidate
The AD5664BRMZ and AD5662ARM-1 are both 16-bit nanoDAC voltage-output DACs from Analog Devices, sharing core DAC architecture and resolution, but they differ in channel count, digital interface, reference configuration, and package footprint. The AD5664BRMZ offers four channels with a SPI interface in a 10-lead MSOP, while the AD5662ARM-1 provides a single channel with an I²C-compatible interface in an 8-lead MSOP. These differences mean the AD5662ARM-1 is not a direct drop-in replacement for the AD5664BRMZ; however, for single-channel applications where board space and I²C bus compatibility are priorities, the AD5662ARM-1 can serve as a functional substitute provided the system design accommodates the reduced channel count and different control interface.
Channel Count
Not compatible
Digital Interface
Not compatible
Reference Configuration
Validation required
Package Type
Validation required
Parts at a glance
Part B
AD5662ARM-1
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 4756 PCS
- Package
- TSSOP-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 | AD5664BRMZ | AD5662ARM-1 | Why it matters |
|---|---|---|---|
| Number of DAC Channels | 4 | 1 | Channel count determines how many independent analog outputs are available; a 4-channel device cannot be replaced by a 1-channel device without redesigning the signal chain. |
| Resolution | 16 bits | 16 bits | Resolution sets the smallest output voltage step; matching resolution is essential for maintaining accuracy in the target application. |
| Interface Type | SPI / DSP | SPI / DSP | The digital interface must match the host controller's protocol for the device to be driven correctly. |
| Package / Case | 10-TFSOP, 10-MSOP | 8-MSOP | Package footprint and pin count affect PCB layout and assembly; different packages are not drop-in compatible. |
| Supply Voltage Range | 2.7 V to 5.5 V | 2.7 V to 5.5 V | The supply range must cover the system rail voltage to ensure proper operation and output compliance. |
| Output Type | Voltage - Buffered | Voltage - Buffered | Buffered voltage outputs can drive loads directly without external amplifiers, simplifying the analog front end. |
| Reference Type | External | External | Reference configuration determines the output voltage span and whether an external reference source is required. |
| Operating Temperature Range | -40°C to 105°C | -40°C to 105°C | The temperature range must encompass the application's environmental conditions for reliable operation. |
| Settling Time | 7 µs | 10 µs | Settling time affects the maximum update rate and dynamic performance in control and waveform generation applications. |
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 | AD5664BRMZ | AD5662ARM-1 |
|---|---|---|
| Supplier | - | Rochester Electronics, LLC,Analog Devices Inc. |
| Series | nanoDAC® | nanoDAC® |
| Part Status | Active | Obsolete |
| Number of Bits | 16 | 16 |
| Number of D/A Converters | 4 | 1 |
| Settling Time | 7µs | 10µs |
| Output Type | Voltage - Buffered | Voltage - Buffered |
| 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) | ±6, ±1 (Max) | ±8, ±1 (Max) |
| Architecture | String DAC | String DAC |
| Operating Temperature | -40°C ~ 105°C | -40°C ~ 125°C |
Frequently asked questions
What are the key architectural differences between the AD5664BRMZ and AD5662ARM-1?
The AD5664BRMZ is a quad-channel, 16-bit nanoDAC with a serial interface and an internal 2.5 V reference, housed in a 10-lead MSOP. The AD5662ARM-1 is a single-channel, 16-bit nanoDAC with a serial interface and an internal 2.5 V reference, housed in an 8-lead MSOP. The primary differences are channel count (4 vs 1) and package pin count (10 vs 8).
Are the AD5664BRMZ and AD5662ARM-1 pin-compatible?
No. The AD5664BRMZ uses a 10-lead MSOP package, while the AD5662ARM-1 uses an 8-lead MSOP package. They have different pin counts and pin functions, so they are not pin-compatible and cannot be interchanged on the same PCB footprint without redesign.
Do both devices have the same resolution and DAC architecture?
Yes. Both the AD5664BRMZ and AD5662ARM-1 are 16-bit voltage-output DACs using a string DAC architecture. They both provide 16-bit monotonicity and are part of the Analog Devices nanoDAC family.
What is the difference in the digital interface between the AD5664BRMZ and AD5662ARM-1?
Both devices use a serial interface, but the AD5664BRMZ supports a 24-bit serial word for quad-channel addressing, while the AD5662ARM-1 uses a 24-bit serial word for single-channel operation. The AD5664BRMZ requires additional address bits to select one of four DAC channels, whereas the AD5662ARM-1 has no channel selection bits.
Can the AD5662ARM-1 be used as a drop-in replacement for one channel of the AD5664BRMZ?
No. The AD5662ARM-1 is a single-channel device in an 8-lead package, while the AD5664BRMZ is a quad-channel device in a 10-lead package. They are not pin-compatible, and the AD5662ARM-1 cannot replace one channel of the AD5664BRMZ without a PCB redesign and firmware changes.
Do both devices operate from the same supply voltage range?
Yes. Both the AD5664BRMZ and AD5662ARM-1 operate from a single 2.7 V to 5.5 V supply. They also both include an internal 2.5 V reference, which can be used or overridden by an external reference.
What are the typical applications for each device?
The AD5664BRMZ is typically used in multi-channel applications such as process control, portable instrumentation, and digital gain and offset adjustment where four DAC channels are needed. The AD5662ARM-1 is typically used in single-channel applications such as portable instrumentation, digital gain and offset adjustment, and programmable voltage and current sources where only one DAC channel is required.
Are the AD5664BRMZ and AD5662ARM-1 both RoHS compliant?
Yes. Both the AD5664BRMZ and AD5662ARM-1 are available in RoHS-compliant packages. The "Z" suffix in AD5664BRMZ indicates a RoHS-compliant version, and the AD5662ARM-1 is also offered in a RoHS-compliant package. Designers should verify the specific ordering part number for compliance in their application.