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
Not a drop-in replacement
The ADC10158CIWM and ADC10064CIWM are not drop-in replacements for one another. Although both are 10-bit CMOS analog-to-digital converters in a 28-pin SOIC package, they differ in resolution-related architecture, input channel configuration, and conversion timing, so the ADC10064CIWM cannot be substituted directly for the ADC10158CIWM without circuit and firmware redesign.
Different channel configuration
Different conversion architecture
Different interface timing
Different input range
Parts at a glance
Part B
ADC10064CIWM
STマイクロエレクトロニクス
- Lifecycle
- Active
- Stock
- 4456 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)
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 | ADC10064CIWM | Why it matters |
|---|---|---|---|
| Resolution | 10 bit | 10 bit | Both converters provide 10-bit resolution, so quantization step size and achievable SNR are equivalent for a given input range. |
| Number of Input Channels | 8 channels (single-ended) | 4 channels (single-ended) | Channel count determines how many analog signals can be multiplexed into one converter; the 8-channel part supports twice as many inputs. |
| Sampling Rate | Up to ~400 kSPS | Up to ~400 kSPS | Maximum throughput affects the highest signal bandwidth that can be digitized; equivalent rates mean similar timing budgets. |
| Interface Type | Parallel (byte-wide) | Parallel (byte-wide) | The bus interface dictates how the converter connects to a host MCU/FPGA and the number of I/O pins required. |
| Supply Voltage | 5 V (single supply) | 5 V (single supply) | Supply voltage must match the system rail and sets the input voltage range and logic levels. |
| Package | 24-pin SOIC (WM suffix) | 24-pin SOIC (WM suffix) | Package footprint and pinout determine board layout compatibility and whether a drop-in replacement is possible. |
| Input Configuration | Single-ended, multiplexed | Single-ended, multiplexed | Input topology affects how sensor signals are wired and whether differential measurements are supported. |
| Operating Temperature Range | Industrial (-40°C to +85°C) | Industrial (-40°C to +85°C) | Temperature range confirms suitability for the target environment and reliability margins. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ADC10158CIWM | ADC10064CIWM |
|---|---|---|
| Supplier | - | Rochester Electronics, LLC,Texas Instruments |
| Part Status | Obsolete | Obsolete |
| Number of Bits | 10 | 10 |
| Sampling Rate(Per Second) | 227k | 800k |
| Number of Inputs | 8 | 4 |
| Input Type | Differential, Pseudo-Differential, Single Ended | 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 | Flash |
| Reference Type | External, Internal | External |
| 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 ADC10064CIWM?
The ADC10158CIWM is a 10-bit, 8-channel successive-approximation ADC with a serial interface, while the ADC10064CIWM is a 10-bit, 4-channel successive-approximation ADC with a parallel interface. The ADC10158CIWM provides twice the input channel count and uses a serial data interface, whereas the ADC10064CIWM offers fewer channels with a parallel interface.
Do the ADC10158CIWM and ADC10064CIWM have the same resolution?
Yes. Both devices are 10-bit analog-to-digital converters, providing 1024 quantization levels over their respective input ranges.
How do the input channel counts differ between these two ADCs?
The ADC10158CIWM provides 8 analog input channels, while the ADC10064CIWM provides 4 analog input channels. Designs requiring more multiplexed inputs should account for this difference.
What interface types do the ADC10158CIWM and ADC10064CIWM use?
The ADC10158CIWM uses a serial interface for data output, while the ADC10064CIWM uses a parallel interface. This difference affects microcontroller pin count, PCB routing, and firmware architecture.
Are the ADC10158CIWM and ADC10064CIWM available in the same package type?
Both devices are offered in a 24-pin SOIC wide-body package (CIWM suffix). However, because their interfaces and channel counts differ, pin functions and PCB land patterns should be verified against the respective manufacturer datasheets before considering any layout reuse.
Can the ADC10158CIWM and ADC10064CIWM be used interchangeably in an existing design?
No. The differing channel counts (8 vs 4) and interface types (serial vs parallel) mean the two devices are not pin-for-pin or function-for-function interchangeable. A redesign of the digital interface and input multiplexing would be required to substitute one for the other.
What is the supply voltage requirement for these converters?
Both the ADC10158CIWM and ADC10064CIWM are specified for a single +5 V supply. Designers should confirm the exact supply range and timing specifications in the respective manufacturer datasheets for the target operating conditions.