Part A
AD5664ARMZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 1986 PCS
- Package
- MSOP-10
- Series
- Acquisição de dados - Convertedores digitais para analógicos (DAC)
Replacement verdict
Not a drop-in replacement
The AD5664ARMZ and AD5662BRM-1 are not drop-in replacements for each other. The AD5664ARMZ is a quad-channel 16-bit DAC in a 10-lead MSOP, while the AD5662BRM-1 is a single-channel 16-bit DAC in an 8-lead MSOP. They differ in channel count, package footprint, pinout, and reference architecture, so a direct board-level substitution is not possible without redesign.
Different channel count
Different footprint
Different pinout
Different reference architecture
Parts at a glance
Part B
AD5662BRM-1
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 7847 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 | AD5664ARMZ | AD5662BRM-1 | Why it matters |
|---|---|---|---|
| Number of DAC Channels | 4 | 1 | Determines how many independent analog outputs are available; a 4-channel device cannot be substituted by a 1-channel device without redesigning the output stage. |
| Resolution | 16 bits | 16 bits | Resolution sets the smallest analog step size; matching resolution is required for equivalent output precision. |
| Interface Type | SPI / DSP / Microwire compatible | SPI / DSP / Microwire compatible | The digital interface must match the host controller's protocol for the device to be driven correctly. |
| Output Voltage Range | 0 V to VREF (external reference) | 0 V to VREF (external reference) | Defines the analog output span; matching ranges ensures the same signal conditioning and reference circuitry can be reused. |
| Reference Type | External | External | External references allow flexible full-scale setting; both parts requiring an external reference means the same reference source can be shared. |
| Supply Voltage | 2.7 V to 5.5 V | 2.7 V to 5.5 V | Supply range compatibility ensures the device operates within the same power rail without additional regulation. |
| Package / Mounting | 10-Lead MSOP | 8-Lead MSOP | Different pin counts and footprints prevent direct drop-in replacement on the same PCB pad layout. |
| INL (Integral Nonlinearity) | ±16 LSB max | ±16 LSB max | INL indicates deviation from ideal transfer function; matching accuracy specifications preserves system-level linearity. |
| Settling Time | 7 µs | 7 µs | Settling time affects the maximum update rate; identical values mean timing-critical designs behave the same. |
| Operating Temperature Range | -40 °C to +105 °C | -40 °C to +105 °C | Temperature range determines suitability for industrial or automotive environments; matching ranges ensures equivalent environmental robustness. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD5664ARMZ | AD5662BRM-1 |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| 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) | ±8, ±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 differences between the AD5664ARMZ and AD5662BRM-1?
The AD5664ARMZ is a quad-channel, 16-bit nanoDAC with a serial interface and internal reference, housed in a 10-lead MSOP. The AD5662BRM-1 is a single-channel, 16-bit nanoDAC with a serial interface and internal reference, housed in an 8-lead MSOP. The primary differences are channel count (4 vs 1), package size (10-lead vs 8-lead), and pinout.
Are the AD5664ARMZ and AD5662BRM-1 pin-compatible?
No. The AD5664ARMZ uses a 10-lead MSOP package, while the AD5662BRM-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.
Can the AD5664ARMZ and AD5662BRM-1 operate from the same supply voltage?
Yes. Both devices are specified for operation from a single 2.7 V to 5.5 V supply, making them compatible with common low-voltage system rails.
Do both the AD5664ARMZ and AD5662BRM-1 include an internal reference?
Yes. Both the AD5664ARMZ and AD5662BRM-1 integrate an on-chip 2.5 V reference, which can be used to set the output voltage range without an external reference source.
What is the resolution and channel count of each device?
The AD5664ARMZ provides four independent 16-bit DAC channels. The AD5662BRM-1 provides one 16-bit DAC channel. Both offer 16-bit resolution, but the AD5664ARMZ supports four times the channel density.
Which serial interface do the AD5664ARMZ and AD5662BRM-1 use?
Both devices use a 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP interface standards. The AD5664ARMZ additionally supports daisy-chain operation for multiple devices.
Are the AD5664ARMZ and AD5662BRM-1 suitable for the same applications?
They can serve similar applications requiring 16-bit DAC resolution, such as process control, data acquisition, and portable instrumentation. However, the AD5664ARMZ is better suited for multi-channel systems, while the AD5662BRM-1 is appropriate for single-channel designs where board space is critical.
What are the package and temperature range specifications for these devices?
The AD5664ARMZ is offered in a 10-lead MSOP and is specified over the -40°C to +105°C temperature range. The AD5662BRM-1 is offered in an 8-lead MSOP and is specified over the -40°C to +105°C temperature range. Both are RoHS-compliant.