Part A
ADS1260BIRHBR
德州儀器
- Lifecycle
- Active
- Stock
- 6816 件
- Series
- 資料獲取-模數轉換器（ADC）
Replacement verdict
Not a drop-in replacement
The ADS1260BIRHBR and ADS1283IRHFR are both high-resolution delta-sigma ADCs, but they differ fundamentally in resolution, input architecture, package footprint, and target application domain. The ADS1260BIRHBR offers 32-bit resolution with a flexible multiplexed input and integrated PGA, while the ADS1283IRHFR is a 31-bit seismic-grade converter with a fixed differential input and different pinout. These differences prevent direct substitution without redesign of the signal chain, layout, and firmware configuration.
Different resolution class
Different input architecture
Different package footprint
Different application domain
Parts at a glance
Part B
ADS1283IRHFR
德州儀器
- Lifecycle
- Active
- Stock
- 58 件
- Series
- 資料獲取-模數轉換器（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 | ADS1260BIRHBR | ADS1283IRHFR | Why it matters |
|---|---|---|---|
| Resolution (bits) | 32 | 31 | Resolution determines the smallest signal change the ADC can resolve; a 32-bit vs 31-bit difference affects dynamic range and low-level measurement capability. |
| Number of input channels | 5 (4 differential / 5 single-ended) | 2 (1 differential) | Channel count determines how many sensors or signal sources can be multiplexed into a single ADC, directly affecting system architecture and BOM cost. |
| Maximum sample rate | 40 kSPS | 4 kSPS | Sample rate sets the bandwidth of signals that can be captured; a 10x difference impacts suitability for high-frequency or fast transient measurements. |
| Input type / architecture | Delta-sigma with integrated PGA | Delta-sigma with integrated PGA | Both use delta-sigma conversion with a PGA, but the ADS1260 offers more flexible multiplexing while the ADS1283 targets seismic/energy exploration with very low noise. |
| Interface | SPI | SPI | Both use SPI, so host microcontroller compatibility is similar, though register maps and command sets differ and require firmware changes. |
| Supply voltage (analog) | 5 V (analog), 3.3 V (digital) | 5 V (analog), 3.3 V (digital) | Matching supply rails simplifies power design, but the two parts still differ in internal reference and bias requirements. |
| Package | VQFN-40 (6x6 mm) | VQFN-24 (5x4 mm) | Different package footprints and pin counts mean the two parts are not drop-in compatible and require separate PCB layouts. |
| Operating temperature range | -40°C to +125°C | -40°C to +85°C | The wider temperature range of the ADS1260 supports harsher industrial environments, while the ADS1283 is limited to standard industrial conditions. |
| Target application focus | Precision industrial sensor and process control | Seismic and energy exploration data acquisition | Different design optimizations (noise, bandwidth, channel count) mean the parts are not functionally interchangeable despite both being high-resolution delta-sigma ADCs. |
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 | ADS1260BIRHBR | ADS1283IRHFR |
|---|---|---|
| Part Status | Active | Active |
| Number of Bits | 24 | 31 |
| Sampling Rate (Per Second) | 40k | 128k |
| Number of Inputs | 5 | 2 |
| Input Type | Differential, Single Ended | Differential |
| Data Interface | SPI | SPI |
| Configuration | MUX-PGA-ADC | MUX-PGA-ADC |
| Ratio - S / H: ADC | - | 0:1 |
| Number of A / D Converters | 1 | 1 |
| Architecture | Sigma-Delta | Sigma-Delta |
| Reference Type | External, Internal | External |
| Voltage - Supply, Analog | 4.75V ~ 5.25V | 2.15V ~ 5.25V |
| Voltage - Supply, Digital | 2.7V ~ 5.25V | 1.65V ~ 3.6V |
| Features | PGA | PGA |
| Operating Temperature | -40°C ~ 125°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
| Base Product Number | ADS1260 | ADS1283 |
| Packaging | Cut Tape (CT), Tape & Reel (TR) | - |
Frequently asked questions
What are the primary differences between the ADS1260BIRHBR and the ADS1283IRHFR?
The ADS1260BIRHBR is a 32-bit, 40-kSPS delta-sigma ADC with an integrated PGA, reference, and oscillator, housed in a 5-mm × 5-mm VQFN-32 package. The ADS1283IRHFR is a 32-bit, 125-SPS delta-sigma ADC optimized for seismic and energy-exploration applications, featuring a low-noise PGA and housed in a 5-mm × 5-mm VQFN-24 package. The ADS1260B targets general-purpose high-resolution industrial sensing, while the ADS1283 targets high-resolution, low-frequency seismic and geophysical data acquisition.
Are the ADS1260BIRHBR and ADS1283IRHFR pin-to-pin or package compatible?
No. The ADS1260BIRHBR uses a VQFN-32 package, while the ADS1283IRHFR uses a VQFN-24 package. The pin counts, pin functions, and PCB land patterns differ, so the two devices are not drop-in replacements and require separate board layouts.
How do the maximum output data rates of the ADS1260BIRHBR and ADS1283IRHFR compare?
The ADS1260BIRHBR supports output data rates up to 40 kSPS in its fastest configuration. The ADS1283IRHFR supports output data rates up to 125 SPS. The ADS1260B is therefore suited to higher-speed multiplexed industrial measurements, while the ADS1283 is intended for low-frequency, high-resolution seismic and geophysical acquisition.
Do both devices include an integrated programmable gain amplifier (PGA)?
Yes. Both the ADS1260BIRHBR and the ADS1283IRHFR integrate a low-noise programmable gain amplifier. The ADS1260B PGA supports gains from 1 to 32, while the ADS1283 PGA supports gains of 1, 2, 4, 8, 16, 32, and 64, allowing direct interface to low-level sensors such as geophones and hydrophones.
What are the typical target applications for the ADS1260BIRHBR versus the ADS1283IRHFR?
The ADS1260BIRHBR is intended for high-resolution industrial measurement, process control, test and measurement, and precision sensor interfaces requiring data rates up to 40 kSPS. The ADS1283IRHFR is intended for seismic data acquisition, energy exploration, and other low-frequency, high-dynamic-range geophysical applications requiring data rates up to 125 SPS.
Do the ADS1260BIRHBR and ADS1283IRHFR share the same supply voltage requirements?
Both devices operate from an analog supply of 5 V and a digital supply of 3.3 V (with 1.8 V to 3.3 V digital I/O options on the ADS1283). Designers should confirm exact supply ranges and decoupling requirements against the respective manufacturer datasheets before finalizing a design.
Can the ADS1283IRHFR be used as a direct replacement for the ADS1260BIRHBR in an existing design?
No. Because the two devices differ in package (VQFN-24 versus VQFN-32), pinout, maximum data rate (125 SPS versus 40 kSPS), PGA gain options, and register map, a direct replacement is not possible. Any substitution requires a new PCB layout and firmware changes validated against the target device datasheet.