Part A
AD976ARZ
Компания Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 1637 ПКС
- Package
- SOIC-28
- Series
- Сбор данных - аналогово-цифровые преобразователи (ADC)
Replacement verdict
Not a drop-in replacement
The AD976ARZ and AD9760ARU50RL are not drop-in replacements for one another. Although both are 10-bit 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 sampling architecture
Different supply configuration
Parts at a glance
Part B
AD9760ARU50RL
Компания Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 9961 ПКС
- Package
- TSSOP-28
- Series
- Сбор данных - цифровые в аналоговые преобразователи (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 | AD9760ARU50RL | 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 alone does not differentiate them for substitutability. |
| Output Type | Current - Unbuffered | Current - Unbuffered | Both provide unbuffered current outputs, requiring an external op-amp for voltage conversion; matching output architecture simplifies circuit reuse. |
| Data Interface | Parallel | Parallel | Both use a parallel interface, so the host-side digital connection scheme is compatible between the two parts. |
| Supply Voltage | ±5 V (analog), 5 V (digital) | 2.7 V to 5.5 V | Supply requirements differ significantly; the AD976ARZ needs bipolar analog rails while the AD9760ARU50RL runs from a single low-voltage supply, affecting board power design. |
| Settling Time | 35 ns | 11 ns | Settling time governs maximum update rate and dynamic accuracy; the faster AD9760ARU50RL suits higher-speed signal generation than the AD976ARZ. |
| Package / Mounting Type | 28-SOIC (Surface Mount) | 28-TSSOP (Surface Mount) | Different package footprints mean the parts are not drop-in replacements on an existing PCB without layout changes. |
| Operating Temperature Range | -40°C to 85°C | -40°C to 85°C | Identical temperature ratings mean both suit the same industrial environmental conditions. |
| Reference Type | External | External, Internal | The AD9760ARU50RL offers an internal reference option while the AD976ARZ requires an external reference, affecting BOM count and reference accuracy design. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD976ARZ | AD9760ARU50RL |
|---|---|---|
| Supplier | - | Analog Devices Inc. |
| Series | - | TxDAC® |
| Part Status | Active | Obsolete |
| Number of Bits | 16 | - |
| Sampling Rate(Per Second) | 100k | - |
| 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 AD976ARZ and AD9760ARU50RL interchangeable in an existing design?
No, they are not directly interchangeable. The AD976ARZ is a 16-bit, 100 kSPS parallel-output ADC in a 28-lead SOIC package, while the AD9760ARU50RL is a 10-bit, 50 MSPS ADC in a 28-lead TSSOP package with a different pinout and interface. Substitution requires full validation against the respective datasheets.
What are the key resolution and sampling-rate differences between the AD976ARZ and AD9760ARU50RL?
The AD976ARZ provides 16-bit resolution at up to 100 kSPS, targeting precision measurement applications. The AD9760ARU50RL provides 10-bit resolution at up to 50 MSPS, targeting high-speed signal processing. The resolution and throughput classes are fundamentally different.
Do the AD976ARZ and AD9760ARU50RL use the same output interface?
No. The AD976ARZ provides a parallel digital output word for its 16-bit conversion result, while the AD9760ARU50RL provides a 10-bit parallel output at high speed. The bus widths and timing characteristics differ, so the digital interface cannot be reused without redesign.
Are the package and pinout of the AD976ARZ and AD9760ARU50RL compatible?
No. The AD976ARZ is supplied in a 28-lead SOIC package, and the AD9760ARU50RL is supplied in a 28-lead TSSOP package. The package footprints, pin assignments, and PCB land patterns differ, so neither part can be dropped into the other's footprint.
Can the AD976ARZ and AD9760ARU50RL share the same analog input and reference design?
No, the analog front-end must be designed separately for each part. The AD976ARZ is a 16-bit precision converter whose input range and reference requirements are defined in its datasheet, while the AD9760ARU50RL is a 10-bit high-speed converter with its own input span and reference specifications. Each design must follow the respective manufacturer datasheet.
Which part should be selected for a high-speed digitizer versus a precision measurement channel?
For high-speed digitization, the AD9760ARU50RL is the appropriate choice given its 10-bit resolution and 50 MSPS throughput. For precision measurement requiring 16-bit resolution at lower sample rates, the AD976ARZ is the appropriate choice. Selection must be based on the required resolution, throughput, and interface defined in each datasheet.
Do the AD976ARZ and AD9760ARU50RL differ in power-supply and operating conditions?
Yes. Each device has its own supply voltage, current consumption, and operating-temperature specifications as stated in its manufacturer datasheet. The power-supply and thermal design must be verified separately for each part and cannot be assumed to transfer between them.