Part A
ADC128S022CIMTX
텍사스 인스트루먼트(주)
- Lifecycle
- Active
- Stock
- 1255 PCS
- Package
- TSSOP-16
- Series
- 데이터 수집 - 아날로그 변환기(ADC)
Replacement verdict
Compatible functional replacement candidate
The ADC128S052CIMTX is a functional replacement candidate for the ADC128S022CIMTX, sharing the same 12-bit SAR architecture, 8-channel single-ended input configuration, SPI interface, and TSSOP-16 footprint. Designers should validate the differing maximum SPI clock rate and slightly reduced power consumption against system timing and budget requirements before substitution.
Resolution and Architecture
High match
Channel Count and Input Type
High match
Maximum SPI Clock Rate
Validation required
Package and Pin Configuration
High match
Parts at a glance
Part B
ADC128S052CIMTX
텍사스 인스트루먼트(주)
- Lifecycle
- Active
- Stock
- 6608 PCS
- Package
- TSSOP-16
- Series
- 데이터 수집 - 아날로그 변환기(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 | ADC128S022CIMTX | ADC128S052CIMTX | Why it matters |
|---|---|---|---|
| Resolution | 12 bit | 12 bit | Both are 12-bit ADCs, so quantization step size and achievable SNR are equivalent. |
| Number of Input Channels | 8 single-ended | 8 single-ended | Channel count determines how many analog signals can be multiplexed into one converter. |
| Sampling Rate (max) | 200 kSPS | 500 kSPS | Higher throughput allows faster signal acquisition and wider analog bandwidth per channel. |
| Supply Voltage Range | 2.7 V to 5.25 V | 2.7 V to 5.25 V | Compatible supply range enables drop-in use across the same system power rails. |
| Interface Type | SPI / Microwire / QSPI | SPI / Microwire / QSPI | Matching serial interface ensures the same host controller firmware and wiring can be reused. |
| Input Type | Single-ended | Single-ended | Single-ended inputs suit ground-referenced sensors; differential would require different front-end design. |
| Package / Pin Count | TSSOP-16 | TSSOP-16 | Identical package and pinout allow direct PCB footprint compatibility. |
| Operating Temperature Range | -40 °C to +105 °C | -40 °C to +105 °C | Same industrial temperature range supports use in the same environmental conditions. |
| Power Consumption (typical) | 1.2 mW at 3 V | 1.8 mW at 3 V | Lower power dissipation affects thermal budget and battery life in portable designs. |
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 | ADC128S022CIMTX | ADC128S052CIMTX |
|---|---|---|
| Supplier | - | Texas Instruments |
| Part Status | Obsolete | Obsolete |
| Number of Bits | 12 | 12 |
| Sampling Rate(Per Second) | 200k | 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 ADC128S022CIMTX and ADC128S052CIMTX?
The ADC128S022CIMTX is a 12-bit, 8-channel successive-approximation ADC with a maximum throughput of 200 kSPS, while the ADC128S052CIMTX is a 12-bit, 8-channel SAR ADC with a maximum throughput of 500 kSPS. Both are offered in a 16-pin TSSOP package and operate from a 2.7 V to 5.25 V analog supply, but the ADC128S052 provides a higher conversion rate.
Are the ADC128S022CIMTX and ADC128S052CIMTX pin-compatible?
Yes. Both devices are specified in the same 16-pin TSSOP (PW) package with the same pinout, including the eight analog inputs (IN0–IN7), CS, SCLK, DOUT, DIN, VA, VD, and AGND/DGND pins, allowing them to share a common PCB footprint.
What is the maximum sampling rate of each device?
The ADC128S022CIMTX supports a maximum throughput of 200 kSPS, whereas the ADC128S052CIMTX supports a maximum throughput of 500 kSPS. The higher rate of the ADC128S052 makes it preferable for faster signal acquisition requirements.
Do both parts use the same serial interface?
Yes. Both devices use a standard SPI-compatible serial interface with separate CS, SCLK, DIN, and DOUT signals, supporting daisy-chain operation and allowing multiple devices to share the same bus.
What is the analog input configuration of these ADCs?
Both the ADC128S022CIMTX and ADC128S052CIMTX provide eight single-ended analog input channels (IN0–IN7) that are multiplexed into a single 12-bit successive-approximation converter, with the channel selected via the serial interface.
What supply voltage range do these devices require?
Both devices operate with an analog supply (VA) and a digital supply (VD) in the range of 2.7 V to 5.25 V, allowing operation from 3.3 V or 5 V systems.
Can the ADC128S052CIMTX be used as a drop-in replacement for the ADC128S022CIMTX?
Because both parts share the same package, pinout, resolution, channel count, and serial interface, the ADC128S052CIMTX can generally serve as a drop-in replacement for the ADC128S022CIMTX, provided the system timing is validated for the higher 500 kSPS throughput and the design's timing margins are confirmed against the respective datasheets.