Part A
AD7983BRMZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 4332 Stückzahl
- Package
- MSOP-10
- Series
- Datenerfassung mit Analog to Digital Converters (ADC)
Replacement verdict
Compatible functional replacement candidate
The AD7983BRMZ is a viable functional replacement candidate for the AD7980ARMZ, sharing the same 16-bit SAR architecture, 10-lead MSOP package, and SPI-compatible serial interface. Designers should validate the higher 1.33 MSPS throughput and reduced 13.5 mW power consumption against their timing and thermal budgets before substitution.
Resolution and Architecture
High match
Package and Pinout
High match
Sample Rate
Validation required
Power Consumption
Validation required
Parts at a glance
Part B
AD7980ARMZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 4535 Stückzahl
- Package
- MSOP-10
- Series
- Datenerfassung mit Analog to Digital Converters (ADC)
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD7980ARMZ | AD7983BRMZ | Why it matters |
|---|---|---|---|
| Resolution | 16 bit | 16 bit | Both are 16-bit SAR ADCs, so resolution is identical and not a differentiator for substitutability. |
| Sampling Rate | 1 MSPS | 1.33 MSPS | The AD7983 offers a higher maximum throughput, which matters when the application needs faster conversion or wider signal bandwidth. |
| Number of Input Channels | 1 (single-ended) | 1 (single-ended) | Both are single-channel devices, so channel count does not affect direct substitution. |
| Input Type | Pseudo-differential (single-ended) | Pseudo-differential (single-ended) | Identical input architecture means the same analog front-end and reference scheme can be reused. |
| Supply Voltage (Analog & Digital) | 2.5 V (2.375 V to 2.625 V) | 2.5 V (2.375 V to 2.625 V) | Same supply requirements allow the parts to share the same power rail design without modification. |
| Interface | SPI / QSPI / MICROWIRE / DSP compatible serial | SPI / QSPI / MICROWIRE / DSP compatible serial | Identical serial interface means firmware and digital host connections remain compatible. |
| Package / Pin Count | 10-lead MSOP | 10-lead MSOP | Same package and pinout enable drop-in board replacement without layout changes. |
| Operating Temperature Range | -40 °C to +125 °C | -40 °C to +125 °C | Identical temperature ratings mean both suit the same industrial and harsh-environment applications. |
| Power Consumption (Typical) | 4.0 mW at 1 MSPS | 5.3 mW at 1.33 MSPS | The AD7983 draws more power at its higher throughput; power budget and thermal design must be checked when substituting. |
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 | AD7983BRMZ | AD7980ARMZ |
|---|---|---|
| Series | PulSAR® | PulSAR® |
| Part Status | Active | Active |
| Number of Bits | 16 | 16 |
| Sampling Rate(Per Second) | 1.33M | 1M |
| Number of Inputs | 1 | 1 |
| Input Type | Pseudo-Differential | Pseudo-Differential |
| Data Interface | SPI, DSP | SPI, DSP |
| Configuration | S/H-ADC | S/H-ADC |
| Ratio - S / H: ADC | 1:1 | 1:1 |
| Number of A/D Converters | 1 | 1 |
| Architecture | SAR | SAR |
| Reference Type | External | External |
| Voltage - Supply, Analog | 2.375V ~ 2.625V | 2.375V ~ 2.625V |
| Voltage - Supply, Digital | 2.375V ~ 2.625V | 2.375V ~ 2.625V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 125°C |
Frequently asked questions
What are the key differences between the AD7980ARMZ and AD7983BRMZ?
The AD7980ARMZ is a 16-bit, 1 MSPS PulSAR ADC, while the AD7983BRMZ is a 16-bit, 1.33 MSPS PulSAR ADC. Both are pin-compatible in a 10-lead MSOP package and share the same serial interface, but the AD7983 offers a higher maximum throughput rate. The AD7980ARMZ is specified for 1 MSPS, and the AD7983BRMZ is specified for 1.33 MSPS.
Are the AD7980ARMZ and AD7983BRMZ pin-compatible?
Yes. Both devices are offered in a 10-lead MSOP (RMZ) package with the same pinout, including VDD, VIO, GND, REF, IN+, IN-, CNV, SDO, SCK, and SDI. This pin compatibility allows the AD7983BRMZ to be used as a higher-speed drop-in option in designs originally laid out for the AD7980ARMZ, subject to validation of timing and power requirements.
Do the AD7980ARMZ and AD7983BRMZ have the same resolution and interface?
Yes. Both are 16-bit successive-approximation register (SAR) ADCs with a serial SPI-compatible interface. They support daisy-chain and busy-indicator modes and operate from a 2.5 V to 5 V supply with a separate VIO supply for digital interfacing. The primary difference is the maximum sample rate: 1 MSPS for the AD7980ARMZ versus 1.33 MSPS for the AD7983BRMZ.
Can the AD7983BRMZ directly replace the AD7980ARMZ in an existing design?
In many cases yes, because the devices are pin-compatible and share the same package and interface. However, the higher throughput of the AD7983BRMZ requires the host controller to support the faster serial clock and conversion timing. The design must be validated against the AD7983BRMZ datasheet timing specifications, including SCK frequency and acquisition time, before substitution.
What is the maximum throughput of each device?
The AD7980ARMZ has a maximum throughput of 1 MSPS. The AD7983BRMZ has a maximum throughput of 1.33 MSPS. Both values are specified in the respective manufacturer datasheets for the 16-bit PulSAR family.
Do both parts support the same reference voltage range?
Yes. Both the AD7980ARMZ and AD7983BRMZ use an external reference applied to the REF pin and support a reference voltage range of 2.5 V to 5 V, with the analog input range being 0 V to VREF. The reference requirements and input span are consistent across both devices.
Are the AD7980ARMZ and AD7983BRMZ available in the same package type?
Yes. Both are offered in the 10-lead MSOP package, designated by the RMZ suffix in the part number. The package dimensions and PCB land pattern are identical, which supports layout reuse between the two devices.