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 AD9760ARURL7 are not drop-in replacements for one another. Although both are 10-bit CMOS analog-to-digital converters, they differ in resolution architecture, package footprint, and interface timing, so the AD9760ARURL7 cannot be substituted directly for the AD976AARZ without a board redesign and timing revalidation.
Different package footprint
Different interface timing
Different pin configuration
Different supply arrangement
Parts at a glance
Part B
AD9760ARURL7
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 3271 PCS
- Package
- TSSOP-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 | AD9760ARURL7 | Why it matters |
|---|---|---|---|
| Resolution | 16 bit | 10 bit | Resolution determines the number of discrete output levels; a 16-bit DAC offers far finer granularity than a 10-bit DAC, so they 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. |
| Output Type | Voltage - Buffered | Current - Unbuffered | A buffered voltage output can drive loads directly, while an unbuffered current output requires an external op-amp or resistor to convert to voltage, changing the surrounding circuit design. |
| Data Interface | Parallel | Parallel | Both use a parallel interface, so the digital host connection style is compatible, though bus width differs with resolution. |
| Reference Type | External, Internal | External, Internal | Both support internal or external references, giving similar flexibility in setting the output full-scale range. |
| Voltage - Supply, Analog | ±5V | 2.7V ~ 5.5V | The analog supply requirements differ significantly; the AD976AARZ needs bipolar ±5V rails while the AD9760ARURL7 runs from a single low-voltage supply, affecting power design and board compatibility. |
| Voltage - Supply, Digital | 5V | 2.7V ~ 5.5V | Digital supply ranges differ, influencing logic-level compatibility with the host processor and overall power architecture. |
| Settling Time | 1 µs | 35 ns | Settling time governs maximum update rate; the much faster AD9760ARURL7 suits high-speed signal generation while the AD976AARZ targets slower precision applications. |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | Identical industrial temperature ranges mean both are suitable for the same environmental conditions. |
| Package / Case | 28-SOIC | 28-TSSOP | Different package footprints (SOIC vs TSSOP) require different PCB land patterns, so a direct drop-in replacement is not possible without layout changes. |
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 | AD9760ARURL7 |
|---|---|---|
| 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
What are the key differences between the AD976AARZ and AD9760ARURL7?
The AD976AARZ is a 16-bit, 200 kSPS parallel-output ADC in a 28-lead SOIC package, while the AD9760ARURL7 is a 10-bit, 125 MSPS high-speed DAC in a 28-lead TSSOP package. They differ in resolution, conversion direction (ADC vs DAC), speed, and package, so they are not interchangeable.
Are the AD976AARZ and AD9760ARURL7 pin-compatible?
No. The AD976AARZ uses a 28-lead SOIC (RW-28) package and the AD9760ARURL7 uses a 28-lead TSSOP (RU-28) package. The package types, pinouts, and functions differ, so they cannot be used as drop-in replacements for each other.
What is the resolution and sample rate of the AD976AARZ?
The AD976AARZ is a 16-bit analog-to-digital converter with a maximum throughput of 200 kSPS, featuring a parallel digital output interface.
What is the resolution and update rate of the AD9760ARURL7?
The AD9760ARURL7 is a 10-bit digital-to-analog converter with a maximum update rate of 125 MSPS, intended for high-speed signal synthesis applications.
Can the AD976AARZ and AD9760ARURL7 be used in the same signal chain?
They serve opposite functions: the AD976AARZ digitizes analog input at up to 200 kSPS, while the AD9760ARURL7 reconstructs analog output at up to 125 MSPS. They can coexist in a system as an ADC and DAC pair, but they are not substitutes for one another.
Do both parts operate from the same supply voltage?
Both devices are specified for a 5 V analog supply per their respective datasheets, but the AD9760ARURL7 also requires a separate digital supply (DVDD) for its high-speed digital interface. Designers should verify the exact supply requirements in each datasheet before layout.
Which part is better suited for high-speed waveform generation?
The AD9760ARURL7, with its 125 MSPS update rate and 10-bit resolution, is designed for high-speed DAC applications such as waveform synthesis. The AD976AARZ, at 200 kSPS, is intended for precision low-speed digitization rather than high-speed generation.
Which part should be selected for precision low-frequency measurement?
The AD976AARZ, with 16-bit resolution and 200 kSPS throughput, is the appropriate choice for precision low-frequency analog-to-digital conversion. The AD9760ARURL7 is a 10-bit high-speed DAC and is not intended for precision measurement front ends.