Part A
ADC10158CIWM
STマイクロエレクトロニクス
- Lifecycle
- Active
- Stock
- 6744 個数
- Package
- SOIC-28
- Series
- データ取得 - アナログ/デジタルコンバータ (ADC)
Replacement verdict
Compatible functional replacement candidate
The ADC10158CIWM and ADC10154CIWM share the same ADC architecture, resolution, package, and temperature range, making them strong functional replacement candidates. The primary distinction is channel count, so the ADC10154CIWM can serve as a reduced-channel substitute for the ADC10158CIWM where the additional input channels are not required, provided the system design is validated against the lower channel count.
Resolution
High match
Package Type
High match
Operating Temperature Range
High match
Channel Count
Validation required
Parts at a glance
Part B
ADC10154CIWM
STマイクロエレクトロニクス
- Lifecycle
- Active
- Stock
- 5606 個数
- Package
- SOIC-24
- 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 | ADC10158CIWM | ADC10154CIWM | Why it matters |
|---|---|---|---|
| Resolution | 10 bit | 10 bit | Both are 10-bit ADCs, so quantization step size and achievable accuracy are equivalent. |
| Number of Input Channels | 8 channels (single-ended) / 4 channels (differential) | 4 channels (single-ended) / 2 channels (differential) | The 158 offers twice the channel count, which directly affects how many signals can be monitored without external multiplexing. |
| Sampling Rate | Up to 227 kSPS | Up to 227 kSPS | Identical conversion throughput means timing and bandwidth requirements are the same for both parts. |
| Interface Type | Serial (SPI-compatible / Microwire) | Serial (SPI-compatible / Microwire) | Same serial interface allows drop-in compatibility with the same host microcontroller bus. |
| Supply Voltage | 5 V (single supply) | 5 V (single supply) | Matching supply requirements means the same power rail can be reused without redesign. |
| Package | 20-pin SOIC (WM suffix) | 20-pin SOIC (WM suffix) | Identical package and pinout support direct board-level substitution. |
| Input Type | Single-ended and differential | Single-ended and differential | Both support differential inputs, enabling noise rejection for low-level signals. |
| Operating Temperature Range | -40 °C to +85 °C (industrial) | -40 °C to +85 °C (industrial) | Same temperature rating ensures equivalent environmental robustness for industrial applications. |
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 | ADC10158CIWM | ADC10154CIWM |
|---|---|---|
| Supplier | - | Texas Instruments |
| Part Status | Obsolete | Obsolete |
| Number of Bits | 10 | 10 |
| Sampling Rate(Per Second) | 227k | 227k |
| Number of Inputs | 8 | 4 |
| Input Type | Differential, Pseudo-Differential, Single Ended | Differential, Pseudo-Differential, Single Ended |
| Data Interface | Parallel | Parallel |
| Configuration | MUX-S/H-ADC | MUX-S/H-ADC |
| Ratio - S / H: ADC | 1:1 | 1:1 |
| Number of A/D Converters | 1 | 1 |
| Architecture | SAR | SAR |
| Reference Type | External, Internal | External, Internal |
| Voltage - Supply, Analog | 5V | 5V |
| Voltage - Supply, Digital | 5V | 5V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
Frequently asked questions
What are the key differences between the ADC10158CIWM and ADC10154CIWM?
The ADC10158CIWM is a 10-bit, 8-channel successive-approximation ADC with a serial interface, while the ADC10154CIWM is a 10-bit, 4-channel device in the same family. The primary difference is the number of analog input channels (8 vs. 4); both share the same 10-bit resolution, similar architecture, and 24-pin SOIC (WM) package.
Do the ADC10158CIWM and ADC10154CIWM have the same pinout and package?
Both devices are offered in a 24-pin SOIC package (suffix WM). However, because the ADC10158CIWM provides 8 input channels and the ADC10154CIWM provides 4, the analog input pin assignments differ. Designers must verify pin functions against the respective manufacturer datasheets before substituting one for the other.
What is the resolution and architecture of these ADCs?
Both the ADC10158CIWM and ADC10154CIWM are 10-bit successive-approximation register (SAR) analog-to-digital converters. They provide 10-bit resolution over their respective analog input channels.
What interface do the ADC10158CIWM and ADC10154CIWM use?
Both devices use a serial digital interface for communication with a host controller, consistent with the ADC1015x family. The serial interface allows conversion results and channel selection to be handled over a minimal number of digital lines.
Can the ADC10154CIWM be used as a drop-in replacement for the ADC10158CIWM?
Not directly. Although both are 10-bit SAR ADCs in a 24-pin SOIC package, the ADC10158CIWM offers 8 analog input channels versus 4 on the ADC10154CIWM, so pin functions and channel addressing differ. A replacement requires validating pin assignments, channel configuration, and the target design against the manufacturer datasheet.
Are the ADC10158CIWM and ADC10154CIWM suitable for the same supply voltage range?
Both devices belong to the same ADC1015x family and are specified for a single 5 V supply in their datasheets. Designers should confirm the exact supply and reference requirements from the official manufacturer datasheet for the specific grade before finalizing a design.
Which device should be selected when more analog inputs are required?
The ADC10158CIWM should be selected when 8 analog input channels are needed, since it provides twice the channel count of the ADC10154CIWM. The ADC10154CIWM is appropriate when only 4 channels are required, allowing a smaller channel configuration within the same package family.