Part A
ADS1263IPW
STマイクロエレクトロニクス
- Lifecycle
- Active
- Stock
- 4618 個数
- Package
- TSSOP-28
- Series
- データ取得 - アナログ/デジタルコンバータ (ADC)
Replacement verdict
Not a drop-in replacement
The ADS1263IPW and ADS1230IPWG4 are not drop-in replacements for one another. Although both are 24-bit delta-sigma ADCs in TSSOP packages, they differ fundamentally in resolution architecture, input channel count, integrated features, and output data rate, so the ADS1230IPWG4 cannot directly substitute the ADS1263IPW in an existing design without significant re-engineering and validation.
Different channel count
Different integrated features
Different output data rate
Different supply architecture
Parts at a glance
Part B
ADS1230IPWG4
STマイクロエレクトロニクス
- Lifecycle
- Active
- Stock
- 6107 個数
- Package
- TSSOP-16
- Series
- データ取得 - アナログ/デジタルコンバータ (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 | ADS1263IPW | ADS1230IPWG4 | Why it matters |
|---|---|---|---|
| Resolution (bits) | 32 | 20 | Higher resolution enables detection of smaller signal changes, which is critical for precision measurement applications. |
| Number of ADC channels | 10 (5 differential / 10 single-ended) | 1 (1 differential) | More channels allow multiple sensors to be measured by a single device, reducing component count and board space. |
| Maximum sample rate (SPS) | 38400 | 80 | A higher sample rate supports faster-changing signals and higher-bandwidth measurement requirements. |
| Interface type | SPI | SPI | Both use SPI, so the host microcontroller interface is compatible, but the protocol details and register maps differ. |
| Integrated PGA | Yes | Yes | An integrated programmable gain amplifier allows direct connection of low-level sensors without external amplification. |
| Supply voltage (analog) | 4.75 V to 5.25 V (AVDD), ±2.5 V bipolar option | 2.7 V to 5.3 V | Supply voltage compatibility determines whether the part can operate from the same rail as the rest of the system. |
| Package | 28-pin TSSOP | 16-pin TSSOP | Different package footprints and pin counts affect PCB layout and are not drop-in compatible. |
| Operating temperature range | -40 °C to +125 °C | -40 °C to +85 °C | A wider temperature range supports use in harsher environments and industrial applications. |
| Input type | Differential and single-ended | Differential | Single-ended capability adds flexibility for measuring ground-referenced signals without additional circuitry. |
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 | ADS1263IPW | ADS1230IPWG4 |
|---|---|---|
| Supplier | - | Texas Instruments |
| Part Status | Active | Discontinued at Digi-Key |
| Number of Bits | 32 | 20 |
| Sampling Rate(Per Second) | 38k | 80 |
| Number of Inputs | 5, 10 | 1 |
| Input Type | Differential, Single Ended | Differential, Single Ended |
| Data Interface | SPI | SPI |
| Configuration | MUX-PGA-ADC | PGA-ADC |
| Number of A/D Converters | 1 | 1 |
| Architecture | Sigma-Delta | Sigma-Delta |
| Reference Type | External, Internal | External |
| Voltage - Supply, Analog | 5V | 2.7V ~ 5.3V |
| Voltage - Supply, Digital | 2.7V ~ 5.25V | 2.7V ~ 5.3V |
| Features | PGA, Temperature Sensor | PGA |
| Operating Temperature | -40°C ~ 125°C | -40°C ~ 85°C |
Frequently asked questions
What are the primary differences between the ADS1263IPW and the ADS1230IPWG4?
The ADS1263IPW is a 32-bit, 38-kSPS delta-sigma ADC with an integrated PGA, dual excitation current sources, and a 24-bit auxiliary ADC, housed in a 28-pin TSSOP. The ADS1230IPWG4 is a 20-bit, 80-SPS delta-sigma ADC with an on-chip PGA and gain of 1 or 128, housed in a 16-pin TSSOP. The ADS1263 targets higher-resolution, higher-speed precision measurement applications, while the ADS1230 targets low-speed, low-noise weigh-scale and bridge-sensor applications.
Are the ADS1263IPW and ADS1230IPWG4 pin-to-pin or package compatible?
No. The ADS1263IPW uses a 28-pin TSSOP package, while the ADS1230IPWG4 uses a 16-pin TSSOP package. The pin counts, pin functions, and PCB land patterns differ, so they are not drop-in replacements for each other.
How do the resolution and data rate specifications compare between the ADS1263IPW and ADS1230IPWG4?
The ADS1263IPW provides 32-bit resolution with programmable data rates up to 38 kSPS. The ADS1230IPWG4 provides 20-bit resolution with a nominal data rate of 80 SPS (10 SPS or 80 SPS selectable). The ADS1263 offers significantly higher resolution and throughput, whereas the ADS1230 is optimized for low-speed, low-noise measurements.
Do both devices include a programmable gain amplifier (PGA)?
Yes. The ADS1263IPW includes an integrated PGA with selectable gains of 1 to 32. The ADS1230IPWG4 includes an on-chip PGA with selectable gains of 1 or 128. The gain options and ranges differ between the two devices.
What are the supply voltage and interface differences between the ADS1263IPW and ADS1230IPWG4?
The ADS1263IPW operates from an analog supply of 5 V (with a digital supply of 2.7 V to 5.25 V) and provides an SPI-compatible serial interface. The ADS1230IPWG4 operates from a single 2.7 V to 5.3 V supply and provides a two-wire serial interface compatible with SPI. Designers should verify exact supply and interface timing requirements against the respective datasheets.
Which device is more suitable for weigh-scale or bridge-sensor applications?
The ADS1230IPWG4 is specifically designed for weigh-scale and bridge-sensor applications, offering 20-bit resolution, a gain of 128 PGA setting, and a low 80-SPS data rate for low-noise measurements. The ADS1263IPW is a higher-performance, more flexible ADC that can also serve precision sensor applications but includes additional features such as dual excitation current sources and an auxiliary ADC.
Can the ADS1230IPWG4 be used as a direct replacement for the ADS1263IPW in an existing design?
No. The two devices differ in package pin count (16 vs 28 pins), resolution (20-bit vs 32-bit), maximum data rate (80 SPS vs 38 kSPS), PGA gain options, and feature set. A direct replacement is not possible without redesigning the PCB and validating the system against the target device's specifications.