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 AD9760AR50 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, package footprint, and supply configuration, so a direct board-level substitution is not possible without redesign.
Different resolution architecture
Different digital interface
Different package footprint
Different supply configuration
Parts at a glance
Part B
AD9760AR50
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 4769 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 | AD9760AR50 | 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. |
| 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 digital host connection scheme is compatible between the two parts. |
| Supply Voltage | 5 V (analog and digital) | 2.7 V to 5.5 V | The AD9760 supports a wider supply range including low-voltage operation, while the AD976A is a 5 V part; supply compatibility affects whether a direct board swap is possible. |
| Settling Time | 35 ns | 35 ns | Similar settling time indicates comparable dynamic response, relevant for high-speed waveform generation. |
| Package / Mounting | 28-SSOP (Surface Mount) | 28-SSOP (Surface Mount) | Identical package and mounting style allow physical drop-in compatibility on the PCB footprint. |
| Operating Temperature Range | -40°C to 85°C | -40°C to 85°C | Matching industrial temperature ranges mean both parts suit the same environmental conditions. |
| Reference Type | External | External | Both require an external voltage reference, so reference circuitry can be shared across designs. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD976AARZ | AD9760AR50 |
|---|---|---|
| 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 AD9760AR50 functionally interchangeable?
No. The AD976AARZ is a 16-bit, 200 kSPS parallel-output ADC in a 28-lead SOIC package, while the AD9760AR50 is a 10-bit, 50 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 AD9760AR50?
The AD9760AR50 is a 10-bit current-output DAC specified for a 50 MSPS update rate, per the Analog Devices datasheet.
Do the AD976AARZ and AD9760AR50 use the same package and pinout?
No. The AD976AARZ is supplied in a 28-lead SOIC (RW-28) package, while the AD9760AR50 is supplied in a 28-lead SSOP (RS-28) package. The pin functions and land patterns differ, so neither package nor pinout is compatible.
What supply voltages do these two parts require?
The AD976AARZ operates from a single 5 V analog supply with a separate digital supply pin (VDRIVE) for interfacing. The AD9760AR50 operates from a single 5 V supply (with 3 V-compatible digital inputs). Exact limits should be confirmed in each respective datasheet.
What are the output interface types of the AD976AARZ and AD9760AR50?
The AD976AARZ provides a parallel 16-bit digital output word to a host processor or FPGA. The AD9760AR50 accepts a parallel 10-bit digital input word and produces a differential current output (IOUTA/IOUTB) intended for reconstruction into an analog signal.
Can the AD9760AR50 be used to replace the AD976AARZ in a signal chain?
No. The AD976AARZ digitizes an analog input (ADC), whereas the AD9760AR50 converts digital codes to an analog current (DAC). They perform opposite functions and cannot substitute for one another in a signal chain.
Are these parts RoHS compliant and what are their temperature ranges?
Both the AD976AARZ and AD9760AR50 are offered in RoHS-compliant package options and are specified over the industrial temperature range of −40 °C to +85 °C, per Analog Devices documentation. Confirm the exact ordering code suffix against the manufacturer datasheet for the target grade.