Part A
AD976AARZ
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 1424 PCS
- Package
- SOIC-28
- Series
- Data Acquisition - Analog to Digital Converters (ADC)
Replacement verdict
Not a drop-in replacement
The AD976AARZ and AD9760ARRL are not drop-in replacements for one another. Although both are 10-bit high-speed CMOS DACs from Analog Devices, they differ in resolution architecture, digital interface timing, package footprint, and reference configuration, so a direct board-level substitution is not possible without design changes and validation.
Different package footprint
Different digital interface timing
Different reference configuration
Different supply and settling behavior
Parts at a glance
Part B
AD9760ARRL
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 3702 PCS
- Package
- SOIC-28
- Series
- Data Acquisition - Digital to Analog Converters (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 | AD976AARZ | AD9760ARRL | Why it matters |
|---|---|---|---|
| Resolution | 16 bit | 10 bit | Resolution determines the number of discrete output levels; a 16-bit DAC provides far finer quantization than a 10-bit DAC, so these parts are not functionally interchangeable in precision applications. |
| Number of D/A Converters | 1 | 1 | Both are single-channel DACs, so channel count alone does not differentiate them for substitutability. |
| Sampling Rate (Max) | 200 kSPS | 125 MSPS | Maximum update rate defines the signal bandwidth the DAC can support; the AD9760 is a high-speed converter while the AD976A is a low-speed precision part, making them suited to very different applications. |
| Output Type | Voltage - Unbuffered | Current - Unbuffered | Voltage versus current output affects the external analog interface circuitry required; a current-output DAC typically needs an external op-amp I/V stage, so the surrounding design differs. |
| Data Interface | Parallel | Parallel | Both use a parallel interface, so the digital host connection style is similar, though bus width differs with resolution. |
| Reference Type | External, Internal | External, Internal | Both support internal or external references, giving similar flexibility in setting the full-scale output range. |
| Analog Supply Voltage | 5 V | 2.7 V to 5.5 V | Supply voltage compatibility determines whether the part can drop into an existing rail; the AD9760's wider range offers more flexibility than the AD976A's fixed 5 V requirement. |
| Operating Temperature Range | -40°C to 85°C | -40°C to 85°C | Both are rated for the industrial temperature range, so environmental tolerance is comparable. |
| Package / Mounting Type | 28-SOIC, Surface Mount | 28-SOIC, Surface Mount | Matching package and mounting style means both can use the same board footprint, which is important for physical substitutability. |
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 | AD976AARZ | AD9760ARRL |
|---|---|---|
| Supplier | - | Rochester Electronics, LLC |
| Series | - | TxDAC® |
| Part Status | Active | Obsolete |
| Number of Bits | 16 | - |
| Sampling Rate(Per Second) | 200k | - |
| Number of Inputs | 1 | - |
| Input Type | Single Ended | - |
| Data Interface | Parallel | - |
| Configuration | S/H-ADC | - |
| Ratio - S / H: ADC | 1:1 | - |
| Number of A/D Converters | 1 | - |
| Architecture | SAR | - |
| Reference Type | External, Internal | - |
| Voltage - Supply, Analog | 5V | - |
| Voltage - Supply, Digital | 5V | - |
| Operating Temperature | -40°C ~ 85°C | - |
Frequently asked questions
Are the AD976AARZ and AD9760ARRL functionally interchangeable?
No. The AD976AARZ is a 16-bit, 200 kSPS parallel-output ADC in a 28-lead SOIC package, while the AD9760ARRL is a 10-bit, 125 MSPS high-speed DAC in a 28-lead SSOP package. They differ in resolution, conversion direction (ADC vs DAC), speed, and package, so they are not interchangeable.
What is the resolution and sample rate of the AD976AARZ?
The AD976AARZ is a 16-bit successive-approximation ADC with a maximum throughput of 200 kSPS, per the Analog Devices datasheet.
What is the resolution and update rate of the AD9760ARRL?
The AD9760ARRL is a 10-bit current-output DAC specified for update rates up to 125 MSPS, per the Analog Devices datasheet.
Do the AD976AARZ and AD9760ARRL use the same package and pinout?
No. The AD976AARZ is supplied in a 28-lead SOIC (RW-28) package, while the AD9760ARRL is supplied in a 28-lead SSOP (RS-28) package. The pinouts and PCB land patterns differ, so neither part can be dropped into the other's footprint.
What digital interface does the AD976AARZ provide?
The AD976AARZ provides a parallel 16-bit digital output word plus associated control signals, allowing direct connection to a microprocessor or DSP bus.
What output format does the AD9760ARRL provide?
The AD9760ARRL provides a differential current output (IOUTA and IOUTB) intended to drive a resistive load or transformer, and it is typically followed by a current-to-voltage conversion stage.
Can the AD976AARZ and AD9760ARRL share the same power supply rail?
Both devices operate from a single 5 V analog supply per their respective Analog Devices datasheets, but each has its own recommended decoupling and supply-domain requirements. Verify the supply and decoupling conditions in each datasheet before sharing a rail in a mixed-signal design.
Which part should be selected for a signal-chain transmit path versus a receive path?
The AD9760ARRL, as a 10-bit 125 MSPS DAC, is suited to transmit-path waveform synthesis. The AD976AARZ, as a 16-bit 200 kSPS ADC, is suited to lower-speed, high-resolution receive or measurement paths. Selection depends on the required resolution, speed, and signal direction of the target design.