Part A
AD976AARZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 1424 PCS
- Package
- SOIC-28
- Series
- Acquisição de dados - Analogo para Convertedores Digitais (ADC)
Replacement verdict
Not a drop-in replacement
The AD976AARZ and AD9760ARU50RL7 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 digital interface, so a direct board-level substitution is not possible without redesign.
Different package footprint
Different digital interface
Different conversion architecture
Different pin configuration
Parts at a glance
Part B
AD9760ARU50RL7
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 8350 PCS
- Package
- TSSOP-28
- 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 | AD976AARZ | AD9760ARU50RL7 | Why it matters |
|---|---|---|---|
| Resolution | 16 bit | 10 bit | Resolution determines the number of discrete output levels; a 16-bit DAC offers far finer quantization 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 is compatible for single-output designs. |
| Output Type | Voltage - Buffered | Current - Unbuffered | A buffered voltage output can drive loads directly, while a current-output DAC requires an external I/V converter stage, changing the surrounding circuit architecture. |
| Data Interface | Parallel | Parallel | Both use a parallel interface, so the digital host connection style is compatible. |
| Reference Type | External, Internal | External, Internal | Both support internal or external references, giving similar flexibility in setting the full-scale range. |
| Voltage - Supply, Analog | ±5V | 2.7V ~ 5.5V | Different analog supply requirements affect power rail design and compatibility with the rest of the system. |
| Voltage - Supply, Digital | 5V | 2.7V ~ 5.5V | Digital supply range determines logic-level compatibility with the driving processor or FPGA. |
| Settling Time | 35 ns | 35 ns | Settling time governs maximum update rate and dynamic performance; matching values indicate similar speed capability. |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | Identical temperature ranges mean both suit the same industrial-grade environments. |
| Package / Case | 28-SOIC | 28-TSSOP | Different package footprints require different PCB land patterns, so a board redesign is needed to substitute one for the other. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD976AARZ | AD9760ARU50RL7 |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Series | - | TxDAC® |
| Part Status | Active | Obsolete |
| Number of Bits | 16 | 10 |
| Number of D/A Converters | - | 1 |
| Settling Time | - | 35ns (Typ) |
| Output Type | - | Current - Unbuffered |
| Differential Output | - | Yes |
| Data Interface | Parallel | Parallel |
| Reference Type | External, Internal | External, Internal |
| Voltage - Supply, Analog | 5V | 2.7V ~ 5.5V |
| Voltage - Supply, Digital | 5V | 2.7V ~ 5.5V |
| INL / DNL(LSB) | - | ±0.5, ±0.25 |
| Architecture | SAR | Current Source |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Sampling Rate(Per Second) | 200k | - |
| Number of Inputs | 1 | - |
| Input Type | Single Ended | - |
| Configuration | S/H-ADC | - |
| Ratio - S / H: ADC | 1:1 | - |
| Number of A/D Converters | 1 | - |
Frequently asked questions
What are the key differences between the AD976AARZ and the AD9760ARU50RL7?
The AD976AARZ is a 16-bit, 200 kSPS parallel-output CMOS ADC in a 28-lead SOIC package, specified over the industrial temperature range. The AD9760ARU50RL7 is a 10-bit, 50 MSPS high-speed ADC in a 28-lead TSSOP package, supplied on a 7-inch reel. They differ fundamentally in resolution, sample rate, output interface, and package, so they are not interchangeable.
Do the AD976AARZ and AD9760ARU50RL7 have the same resolution and sampling rate?
No. The AD976AARZ provides 16-bit resolution at up to 200 kSPS, while the AD9760ARU50RL7 provides 10-bit resolution at up to 50 MSPS. The AD9760 is intended for high-speed signal conversion, whereas the AD976A targets precision, lower-speed measurement applications.
Are the output interfaces of these two ADCs compatible?
No. The AD976AARZ provides a parallel CMOS output word of 16 bits, while the AD9760ARU50RL7 provides a 10-bit parallel output. The bus width and timing differ, so a board designed for one device cannot directly accept the other without redesign of the digital interface.
Can the AD9760ARU50RL7 be used as a drop-in replacement for the AD976AARZ?
No. The two devices differ in resolution (10-bit vs 16-bit), sample rate (50 MSPS vs 200 kSPS), package (28-lead TSSOP vs 28-lead SOIC), and pin functions. A direct substitution is not possible; any replacement requires verification against the respective manufacturer datasheets and a redesign of the analog front end and digital interface.
What package and mounting options are available for each device?
The AD976AARZ is offered in a 28-lead SOIC package. The AD9760ARU50RL7 is offered in a 28-lead TSSOP package and is supplied in tape-and-reel format (50 units per reel, 7-inch reel). The different package footprints require different PCB land patterns.
What are the typical applications for each converter?
The AD976AARZ, with 16-bit resolution and 200 kSPS throughput, suits precision data acquisition, industrial instrumentation, and medical measurement systems. The AD9760ARU50RL7, with 10-bit resolution and 50 MSPS throughput, suits high-speed signal processing such as communications receivers, video digitizing, and IF sampling. Application suitability should be confirmed against each datasheet's specifications.
Do both parts operate from the same supply voltage?
Both devices are specified for a single 5 V analog supply, but the complete supply and reference requirements differ between the two datasheets. Designers must verify the analog supply, digital supply, and reference configurations for each part against the official manufacturer documentation before use.
Which device should be selected for a high-speed digitizer versus a precision measurement channel?
For a high-speed digitizer requiring tens of megasamples per second, the AD9760ARU50RL7 is the appropriate choice given its 50 MSPS rate and 10-bit resolution. For a precision measurement channel requiring 16-bit accuracy at lower throughput, the AD976AARZ is appropriate. Final selection must be validated against the target system's accuracy, bandwidth, and interface requirements using the manufacturer datasheets.