Part A
AD5314BRMZ
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 3984 個数
- Package
- MSOP-10
- Series
- データ取得 - デジタル/アナログコンバータ (DAC)
Replacement verdict
Not a drop-in replacement
The AD5314BRMZ and AD5310BRM are not drop-in replacements for each other. The AD5314BRMZ is a quad 10-bit DAC with an SPI interface, while the AD5310BRM is a single 10-bit DAC with an I²C-compatible interface. They differ in channel count, digital interface, package pinout, and reference architecture, so a direct substitution is not possible without redesign.
Different channel count
Different digital interface
Different pinout
Different reference architecture
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD5314BRMZ | AD5310BRM | Why it matters |
|---|---|---|---|
| Number of DAC Channels | 4 | 1 | Determines how many independent analog outputs are available; a 4-channel device cannot be replaced by a 1-channel device without redesigning the output stage. |
| Resolution | 10 bits | 10 bits | Both provide 10-bit resolution, so the achievable output granularity and quantization error are equivalent. |
| Interface Type | SPI / QSPI / MICROWIRE / DSP compatible | SPI / QSPI / MICROWIRE / DSP compatible | Matching serial interfaces allow the same host controller and firmware protocol to drive either device. |
| Supply Voltage Range | 2.5 V to 5.5 V | 2.7 V to 5.5 V | The slightly wider lower limit of the AD5314BRMZ permits operation at 2.5 V, which may matter in low-voltage systems. |
| Reference Type | External | External | Both require an external reference, so the same reference source and decoupling scheme can be reused. |
| Output Type | Voltage output | Voltage output | Both provide voltage-mode outputs, so no external current-to-voltage conversion is needed for either part. |
| Package | 10-lead MSOP | 8-lead MSOP | Different pin counts and footprints mean the PCB layout and land pattern must be changed if substituting one for the other. |
| Operating Temperature Range | -40 °C to +105 °C | -40 °C to +105 °C | Identical temperature ratings ensure both parts are suitable for the same industrial temperature environments. |
| Power-Down Capability | Yes | Yes | Both support power-down modes, allowing similar low-power system behavior and software control. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD5314BRMZ | AD5310BRM |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Number of Bits | 10 | 10 |
| Number of D/A Converters | 4 | 1 |
| Settling Time | 9µs | 8µs |
| Output Type | Voltage - Buffered | Voltage - Buffered |
| Differential Output | No | No |
| Data Interface | SPI, DSP | SPI, DSP |
| Reference Type | External | Supply |
| Voltage - Supply, Analog | 2.5V ~ 5.5V | 2.7V ~ 5.5V |
| Voltage - Supply, Digital | 2.5V ~ 5.5V | 2.7V ~ 5.5V |
| INL / DNL(LSB) | ±0.5, ±0.05 | ±4 (Max), ±0.5 (Max) |
| Architecture | String DAC | String DAC |
| Operating Temperature | -40°C ~ 105°C | -40°C ~ 105°C |
Frequently asked questions
What are the key differences between the AD5314BRMZ and the AD5310BRM?
The AD5314BRMZ is a quad 10-bit voltage-output DAC with an SPI-compatible serial interface, while the AD5310BRM is a single 10-bit voltage-output DAC with a similar serial interface. The AD5314 integrates four DAC channels in a 10-lead MSOP package, whereas the AD5310 provides one channel in an 8-lead MSOP package. Both operate from a 2.5 V to 5.5 V supply and offer a 10-bit resolution, but the AD5314 includes a power-on reset to zero scale and a reference input buffer, while the AD5310 has a power-on reset to zero scale and a reference input that can be configured as a buffered or unbuffered input.
Are the AD5314BRMZ and AD5310BRM pin-compatible?
No, they are not pin-compatible. The AD5314BRMZ is housed in a 10-lead MSOP package, while the AD5310BRM is in an 8-lead MSOP package. The pin counts and pin functions differ, so they cannot be used as drop-in replacements without PCB redesign.
Can the AD5314BRMZ and AD5310BRM operate from the same supply voltage range?
Yes, both devices operate from a single supply voltage range of 2.5 V to 5.5 V, as specified in their respective manufacturer datasheets.
What is the resolution of the AD5314BRMZ and AD5310BRM?
Both the AD5314BRMZ and the AD5310BRM are 10-bit digital-to-analog converters, providing 1024 discrete output levels.
Do the AD5314BRMZ and AD5310BRM have the same serial interface?
Both devices use an SPI-compatible serial interface. However, the AD5314BRMZ supports daisy-chain operation and has a dedicated SYNC and SCLK pin, while the AD5310BRM also uses a SYNC and SCLK pin but does not support daisy-chaining. The command structure and register set differ due to the multi-channel versus single-channel architecture.
What is the package type for the AD5314BRMZ and AD5310BRM?
The AD5314BRMZ is available in a 10-lead MSOP package, and the AD5310BRM is available in an 8-lead MSOP package. Both are RoHS-compliant as indicated by the "Z" suffix on the AD5314BRMZ and the standard "RM" suffix on the AD5310BRM.
Can the AD5314BRMZ be used as a direct replacement for the AD5310BRM in an existing design?
No, a direct replacement is not possible due to differences in package size, pin count, pin functions, and channel count. The AD5314BRMZ provides four DAC channels, while the AD5310BRM provides only one. Any substitution requires a complete review of the schematic, PCB layout, and firmware to accommodate the different command set and pinout.
What is the power-on reset state for the AD5314BRMZ and AD5310BRM?
Both the AD5314BRMZ and the AD5310BRM have a power-on reset circuit that sets the DAC output to zero scale (0 V) at power-up, as stated in their respective datasheets.