Part A
AD976ARZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 1637 PCS
- Package
- SOIC-28
- Series
- Acquisição de dados - Analogo para Convertedores Digitais (ADC)
Replacement verdict
Not a drop-in replacement
The AD976ARZ and AD9760ARUZ50RL7 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 pin configuration
Different digital interface
Different supply architecture
Parts at a glance
Part B
AD9760ARUZ50RL7
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 4123 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 | AD976ARZ | AD9760ARUZ50RL7 | 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 a current-output DAC 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 | Supply requirements differ significantly; the bipolar ±5V supply of one versus the single low-voltage supply of the other affects power design and cannot be swapped without reworking the power rail. |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | Identical industrial temperature ranges mean both suit the same environmental conditions. |
| Package / Case | 28-SOIC | 28-TSSOP | Different package footprints and pin layouts prevent direct board-level drop-in replacement without a layout change. |
| Settling Time | 1 µs | 35 ns | Settling time governs maximum update rate; the much faster settling of one device makes it suitable for high-speed signal generation where the other is not. |
| Mounting Type | Surface Mount | Surface Mount | Both are surface-mount devices, so assembly technology is consistent between them. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD976ARZ | AD9760ARUZ50RL7 |
|---|---|---|
| Supplier | - | Analog Devices Inc. |
| Series | - | TxDAC® |
| Part Status | Active | Active |
| 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
Are the AD976ARZ and AD9760ARUZ50RL7 interchangeable in an existing design?
No. The AD976ARZ is a 16-bit, 100 kSPS parallel-output ADC in a 28-lead SOIC package, while the AD9760ARUZ50RL7 is a 10-bit, 50 MSPS ADC in a 28-lead TSSOP package with a different pinout and interface. They differ in resolution, sample rate, package, and digital interface, so they are not drop-in replacements.
What are the key resolution and sampling-rate differences between the AD976ARZ and AD9760ARUZ50RL7?
The AD976ARZ provides 16-bit resolution at up to 100 kSPS. The AD9760ARUZ50RL7 provides 10-bit resolution at up to 50 MSPS. The AD9760ARUZ50RL7 is intended for much higher-speed, lower-resolution applications, whereas the AD976ARZ targets high-resolution, lower-speed precision applications.
Do the AD976ARZ and AD9760ARUZ50RL7 use the same package and pinout?
No. The AD976ARZ is supplied in a 28-lead SOIC (RW-28) package. The AD9760ARUZ50RL7 is supplied in a 28-lead TSSOP (RU-28) package. The package body dimensions, lead pitch, and pin assignments differ, so PCB footprints are not compatible.
What digital output interface does each device provide?
The AD976ARZ provides a parallel digital output word (16 bits) for direct connection to a host or DSP bus. The AD9760ARUZ50RL7 provides a 10-bit parallel output. Because the word widths and timing differ, the receiving logic and PCB routing must be designed specifically for each part.
Can the AD9760ARUZ50RL7 be used to replace the AD976ARZ in a precision measurement circuit?
No. The AD9760ARUZ50RL7 has 10-bit resolution versus 16-bit resolution for the AD976ARZ, which reduces dynamic range and quantization granularity. For precision measurement applications requiring 16-bit performance, the AD9760ARUZ50RL7 does not meet the same accuracy class.
Are the analog input configurations of the AD976ARZ and AD9760ARUZ50RL7 the same?
No. The AD976ARZ uses a successive-approximation architecture with a specified analog input range and reference configuration, while the AD9760ARUZ50RL7 is a pipelined ADC with its own input span and reference requirements. Input drive, reference, and settling requirements must be evaluated separately for each device.
Which device is better suited for high-speed signal acquisition?
The AD9760ARUZ50RL7 is better suited for high-speed acquisition because it supports sample rates up to 50 MSPS. The AD976ARZ is limited to 100 kSPS and is intended for high-resolution, lower-speed applications rather than high-speed signal capture.
Do the AD976ARZ and AD9760ARUZ50RL7 share the same power-supply requirements?
No. Each device has its own specified supply voltage, current consumption, and power-dissipation characteristics as defined in its respective manufacturer datasheet. The power-supply design, decoupling, and thermal considerations must be verified separately for each part before use.