Part A
AD976ARZ
ADI公司
- Lifecycle
- Active
- Stock
- 1637 件
- Package
- SOIC-28
- Series
- 資料獲取-模數轉換器（ADC）
Replacement verdict
Not a drop-in replacement
AD976ARZ and AD9760ARU50RL7 are not functionally interchangeable. The AD976ARZ is a 16-bit parallel current-output DAC in a 28-lead SOIC package, while the AD9760ARU50RL7 is a 10-bit current-output DAC in a 28-lead TSSOP package with a different digital interface and resolution class. Designers must validate resolution, interface timing, package footprint, and reference architecture before considering any substitution.
Different resolution
Different digital interface
Different package footprint
Different reference architecture
Parts at a glance
Part B
AD9760ARU50RL7
ADI公司
- Lifecycle
- Active
- Stock
- 8350 件
- Package
- TSSOP-28
- Series
- 資料獲取-數模轉換器（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 | AD976ARZ | 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. |
| Sampling / Update Rate | 100 kSPS | 125 MSPS | The maximum update rate defines the signal bandwidth the DAC can synthesize; the two parts differ by orders of magnitude, suiting very different applications. |
| Architecture | Current-output (R-2R style) DAC | Current-steering CMOS DAC | The internal architecture affects linearity, settling behavior, and output interface requirements, influencing whether a part can be dropped into an existing design. |
| Output Type | Current output (voltage with external op-amp) | Current output (differential) | Output configuration determines the external analog signal-conditioning circuitry required to interface with downstream stages. |
| Supply Voltage | ±5 V (dual supply) | 3.0 V to 3.6 V (single supply) | Supply requirements dictate board-level power design; a dual ±5 V part cannot directly replace a single 3.3 V part without power-rail changes. |
| Package | 28-lead SOIC (wide body) | 28-lead TSSOP | Package footprint and pinout must match for a physical drop-in replacement; different packages require PCB redesign. |
| Interface | Parallel word input | Parallel word input | Digital interface compatibility affects how easily the DAC connects to the host processor or FPGA; both use parallel input but with different word widths. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | The temperature range confirms suitability for industrial environments; matching ranges indicate comparable environmental robustness. |
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 | AD976ARZ | 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) | 100k | - |
| 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 AD976ARZ and AD9760ARU50RL7?
The AD976ARZ is a 16-bit, 100 kSPS parallel-output ADC in a 28-lead SOIC package, while the AD9760ARU50RL7 is a 10-bit, 50 MSPS high-speed ADC in a 28-lead TSSOP package. They differ in resolution, sampling rate, output interface, package, and target application, so they are not interchangeable.
Do the AD976ARZ and AD9760ARU50RL7 have the same resolution and sampling rate?
No. The AD976ARZ offers 16-bit resolution at up to 100 kSPS, whereas the AD9760ARU50RL7 offers 10-bit resolution at up to 50 MSPS. The AD9760 is optimized for high-speed signal processing, while the AD976 is intended for precision, lower-speed measurement applications.
Are the AD976ARZ and AD9760ARU50RL7 pin-compatible or package-compatible?
No. The AD976ARZ is supplied in a 28-lead SOIC (RW-28) package, and the AD9760ARU50RL7 is supplied in a 28-lead TSSOP (RU-28) package. Pin functions and PCB land patterns differ, so neither direct substitution nor shared footprint is supported without redesign.
What output interface does each device provide?
The AD976ARZ provides a parallel 16-bit output for direct connection to a microprocessor or DSP bus. The AD9760ARU50RL7 provides a 10-bit parallel output intended for high-speed data acquisition and digital signal processing interfaces. The bus widths and timing characteristics are not compatible.
Can the AD9760ARU50RL7 be used as a drop-in replacement for the AD976ARZ?
No. The two devices differ in resolution (10-bit vs 16-bit), sampling rate (50 MSPS vs 100 kSPS), package (TSSOP vs SOIC), and output timing. A drop-in replacement is not possible; any substitution requires a full review of the system's accuracy, speed, and layout requirements.
What are the typical applications for each device?
The AD976ARZ is typically used in precision instrumentation, industrial measurement, and low-speed data acquisition where 16-bit accuracy is required. The AD9760ARU50RL7 is typically used in high-speed communications, video digitizing, and IF sampling where 10-bit resolution at 50 MSPS is sufficient.
Are the AD976ARZ and AD9760ARU50RL7 RoHS compliant?
Yes. Both the AD976ARZ and AD9760ARU50RL7 are offered in RoHS-compliant package options by Analog Devices. Designers should confirm the specific ordering code and latest manufacturer datasheet for final compliance verification.