Part A
AD5311BRMZ
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 5690 個数
- 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 AD5311BRMZ and AD5317ARU are not drop-in replacements for each other. They differ in DAC resolution, number of channels, digital interface protocol, and package footprint, so a direct substitution is not feasible without a full board and firmware redesign.
Different resolution
Different channel count
Different interface type
Different package footprint
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD5311BRMZ | AD5317ARU | Why it matters |
|---|---|---|---|
| Number of DAC Channels | 1 | 4 | Channel count determines how many independent analog outputs the system can drive, directly affecting functional substitutability. |
| Resolution | 10 bits | 10 bits | Resolution defines the smallest analog output step; matching resolution preserves output precision when substituting. |
| Interface Type | I2C (2-wire) | SPI (3-wire) | The digital interface must match the host controller; I2C and SPI are not directly interchangeable without hardware or firmware changes. |
| Package / Case | 8-Lead MSOP | 16-Lead TSSOP | Footprint and pin count must match the PCB layout for a drop-in replacement. |
| Supply Voltage Range | 2.5 V to 5.5 V | 2.5 V to 5.5 V | Compatible supply range ensures the device operates correctly within the existing power rail design. |
| Output Type | Voltage (buffered) | Voltage (buffered) | Output type must match the load requirements; both provide buffered voltage outputs suitable for similar applications. |
| Reference Type | External | External | Reference configuration affects accuracy and requires matching external reference circuitry. |
| Operating Temperature Range | -40°C to +105°C | -40°C to +105°C | Temperature range must cover the application environment for reliable operation. |
| Settling Time | 7 µs | 7 µs | Settling time affects the maximum update rate and dynamic performance in control loops. |
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 | AD5311BRMZ | AD5317ARU |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Number of Bits | 10 | 10 |
| Number of D/A Converters | - | 4 |
| Settling Time | 9µs | 9µs |
| Output Type | Voltage - Buffered | Voltage - Buffered |
| Differential Output | No | No |
| Data Interface | I2C | SPI, DSP |
| Reference Type | Supply | External |
| Voltage - Supply, Analog | 2.5V ~ 5.5V | 2.5V ~ 5.5V |
| Voltage - Supply, Digital | 2.5V ~ 5.5V | 2.5V ~ 5.5V |
| INL / DNL(LSB) | - | ±0.5, ±0.05 |
| Architecture | String DAC | String DAC |
| Operating Temperature | -40°C ~ 105°C | -40°C ~ 105°C |
| Base Product Number | AD5311 | - |
| Number of D / A Converters | 1 | - |
| INL / DNL (LSB) | ±0.5, ±0.05 | - |
| Mounting Type | Surface Mount | - |
| Packaging | Tube | - |
Frequently asked questions
What are the key differences between the AD5311BRMZ and AD5317ARU?
The AD5311BRMZ is a single-channel, 10-bit nanoDAC with an I2C-compatible interface, housed in an 8-lead MSOP package. The AD5317ARU is a quad-channel, 10-bit DAC with a parallel interface, housed in a 16-lead TSSOP package. They differ in channel count, digital interface, and package footprint.
Are the AD5311BRMZ and AD5317ARU pin-compatible?
No. The AD5311BRMZ uses an 8-lead MSOP package, while the AD5317ARU uses a 16-lead TSSOP package. Their pin counts, pin functions, and PCB land patterns are different, so they are not pin-compatible.
Can the AD5311BRMZ and AD5317ARU operate from the same supply voltage?
Yes. Both devices are specified for operation from a single 2.5 V to 5.5 V supply, according to their respective manufacturer datasheets.
Do the AD5311BRMZ and AD5317ARU have the same resolution and DAC architecture?
Yes. Both are 10-bit voltage-output DACs. The AD5311BRMZ is a single-channel nanoDAC, and the AD5317ARU is a quad-channel DAC. Both use a string DAC architecture.
What digital interfaces do the AD5311BRMZ and AD5317ARU use?
The AD5311BRMZ uses a 2-wire I2C-compatible serial interface. The AD5317ARU uses a parallel microprocessor interface. The interface type is a primary difference affecting system design and microcontroller pin count.
Are the AD5311BRMZ and AD5317ARU available in the same package type?
No. The AD5311BRMZ is offered in an 8-lead MSOP package. The AD5317ARU is offered in a 16-lead TSSOP package. Package type and body size differ between the two devices.
Can the AD5311BRMZ directly replace the AD5317ARU in an existing design?
No. Direct replacement is not possible because the devices differ in channel count, digital interface, pin count, and package footprint. Any substitution requires a complete design review and validation against the target application requirements.
Do both the AD5311BRMZ and AD5317ARU support external reference voltage inputs?
Yes. Both devices provide a reference input pin that allows the user to set the DAC output voltage range using an external reference. The reference input voltage range and input impedance should be verified from the respective datasheets for the specific operating conditions.