Part A
ADC128S102CIMTX
Texas Dụng cụ
- Lifecycle
- Active
- Stock
- 6850 PCS
- Package
- TSSOP-16
- Series
- Data Acquisition - Analog to Digital Converters (ADC)
Replacement verdict
Compatible functional replacement candidate
The ADC128S102CIMTX and ADC128S052CIMTX are functionally compatible 12-bit, 8-channel SAR ADCs in identical TSSOP-16 packages with matching SPI interfaces and supply requirements, making the ADC128S052CIMTX a viable replacement candidate for the ADC128S102CIMTX in most designs, subject to validation of the maximum sampling rate requirement.
Resolution and Channel Count
High match
Package and Pinout
High match
Supply Voltage Range
High match
Maximum Sampling Rate
Validation required
Parts at a glance
Part B
ADC128S052CIMTX
Texas Dụng cụ
- Lifecycle
- Active
- Stock
- 6608 PCS
- Package
- TSSOP-16
- Series
- Data Acquisition - 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 | ADC128S102CIMTX | ADC128S052CIMTX | Why it matters |
|---|---|---|---|
| Resolution | 12 bit | 12 bit | Both are 12-bit SAR ADCs, so conversion resolution is equivalent and not a differentiator for substitutability. |
| Number of Input Channels | 8 single-ended | 8 single-ended | Channel count determines how many analog signals can be multiplexed into the ADC; both provide 8 channels. |
| Sampling Rate | 500 kSPS to 1 MSPS | 200 kSPS to 500 kSPS | Maximum throughput affects the ability to capture fast-changing signals; the ADC128S102 supports higher sampling rates than the ADC128S052. |
| Supply Voltage Range | 2.7 V to 5.25 V | 2.7 V to 5.25 V | Both operate over the same analog and digital supply range, allowing similar system-level power design. |
| Interface Type | SPI / QSPI / MICROWIRE / DSP compatible | SPI / QSPI / MICROWIRE / DSP compatible | Serial interface compatibility ensures the same host controller can drive either device without protocol changes. |
| Power Consumption (Typical) | 1.2 mW at 3 V, 1 MSPS | 1.2 mW at 3 V, 500 kSPS | Power draw impacts thermal and battery-life budgets; both are low-power, but the ADC128S102 achieves higher throughput at similar power. |
| Package | 16-pin TSSOP | 16-pin TSSOP | Identical package and pinout enable drop-in PCB compatibility between the two parts. |
| Operating Temperature Range | -40 °C to +105 °C | -40 °C to +105 °C | Matching industrial temperature ranges ensure both parts suit the same environmental conditions. |
| Input Type | Single-ended | Single-ended | Single-ended inputs simplify signal conditioning; both devices share the same input configuration. |
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Send your BOM and application constraints for technical and sourcing review.
Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ADC128S102CIMTX | ADC128S052CIMTX |
|---|---|---|
| Supplier | - | Texas Instruments |
| Part Status | Obsolete | Obsolete |
| Number of Bits | 12 | 12 |
| Sampling Rate(Per Second) | 1M | 500k |
| Number of Inputs | 8 | 8 |
| Input Type | Single Ended | Single Ended |
| Data Interface | SPI, DSP | SPI, DSP |
| 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 | Supply | Supply |
| Voltage - Supply, Analog | 2.7V ~ 5.25V | 2.7V ~ 5.25V |
| Voltage - Supply, Digital | 2.7V ~ 5.25V | 2.7V ~ 5.25V |
| Operating Temperature | -40°C ~ 105°C | -40°C ~ 105°C |
Frequently asked questions
What are the key differences between the ADC128S102CIMTX and the ADC128S052CIMTX?
The ADC128S102CIMTX is a 12-bit, 8-channel, 500 kSPS to 1 MSPS SAR ADC, while the ADC128S052CIMTX is a 12-bit, 8-channel, 200 kSPS to 500 kSPS SAR ADC. Both are pin-compatible 16-pin TSSOP devices from Texas Instruments with similar SPI interfaces, but they differ in maximum throughput rate and timing specifications.
Are the ADC128S102CIMTX and ADC128S052CIMTX pin-compatible?
Yes. Both devices are offered in the same 16-pin TSSOP (PW) package with identical pin functions, including the SPI interface pins (CS, SCLK, DIN, DOUT), analog inputs (IN0 through IN7), and supply pins (VA, VD, AGND, DGND). This allows a common PCB footprint, though timing and throughput differences must be validated.
What is the maximum sampling rate of each device?
The ADC128S102CIMTX supports a maximum throughput of 1 MSPS at a 2.7 V to 5.25 V supply. The ADC128S052CIMTX supports a maximum throughput of 500 kSPS. Designs requiring the higher rate must use the ADC128S102CIMTX or verify that the ADC128S052CIMTX meets the system timing budget.
Do both devices have the same resolution and number of input channels?
Yes. Both are 12-bit successive-approximation register (SAR) ADCs with eight single-ended analog input channels. Channel selection is performed via the SPI serial interface using the address bits in the control register, and both devices support the same channel-addressing scheme.
What supply voltage range do these ADCs support?
Both the ADC128S102CIMTX and ADC128S052CIMTX operate from an analog supply (VA) of 2.7 V to 5.25 V and a digital supply (VD) of 2.7 V to 5.25 V. The digital interface is compatible with SPI, QSPI, MICROWIRE, and DSP interfaces, allowing direct connection to 3 V and 5 V logic systems.
Can the ADC128S052CIMTX be used as a drop-in replacement for the ADC128S102CIMTX?
Pin compatibility allows a common footprint, but the ADC128S052CIMTX has a lower maximum throughput (500 kSPS versus 1 MSPS) and different timing parameters. A drop-in replacement is only valid if the system's sampling rate, clock frequency, and timing margins are re-validated against the ADC128S052CIMTX datasheet.
What are the operating temperature ranges for these devices?
Both the ADC128S102CIMTX and ADC128S052CIMTX are specified over the industrial temperature range of −40°C to +105°C, making them suitable for industrial and embedded applications requiring extended temperature operation.
Do both ADCs use the same SPI interface and control register format?
Yes. Both devices use a standard 4-wire SPI interface (CS, SCLK, DIN, DOUT) and a 16-bit control register that selects the input channel and configures the conversion. The command word format is identical, so firmware can often be reused, provided the SCLK frequency and conversion timing are adjusted for the ADC128S052CIMTX's lower maximum throughput.