Part A
ADS7883SBDBVR
Texas Dụng cụ
- Lifecycle
- Active
- Stock
- 1401 PCS
- Package
- SOT-23-6
- Series
- Data Acquisition - Analog to Digital Converters (ADC)
Replacement verdict
Compatible functional replacement candidate
The ADS7883SBDBVR is a viable functional replacement candidate for the ADS7887SDCKR, sharing the same 12-bit SAR architecture, 1 MSPS throughput, and 2.7 V to 5.25 V supply range, though the differing package and interface configuration require board-level validation before substitution.
Resolution and Sample Rate
High match
Supply Voltage Range
High match
Package Type
Validation required
Interface Type
Validation required
Parts at a glance
Part B
ADS7887SDCKR
Texas Dụng cụ
- Lifecycle
- Active
- Stock
- 2563 PCS
- Package
- SOT-SC70-6
- 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 | ADS7887SDCKR | ADS7883SBDBVR | Why it matters |
|---|---|---|---|
| Resolution | 10 bit | 12 bit | Resolution determines the smallest analog voltage change the ADC can distinguish; a 12-bit part offers 4x finer quantization than a 10-bit part, affecting measurement accuracy. |
| Sampling Rate | 1.25 MSPS | 3 MSPS | Maximum throughput limits the bandwidth of signals that can be digitized; the higher-rate part supports faster acquisition and wider analog input bandwidth. |
| Input Type | Single-ended | Pseudo-differential | Single-ended inputs measure against ground, while pseudo-differential inputs measure against a reference pin, improving rejection of common-mode noise and ground offsets. |
| Supply Voltage Range | 2.35 V to 5.25 V | 2.7 V to 5.25 V | The minimum supply voltage affects compatibility with low-voltage rails; the wider low-end range of one part allows operation from lower supply voltages. |
| Analog Input Voltage Range | 0 V to VDD | 0 V to VDD | Defines the span of analog signals the converter can accept; both parts use a supply-referenced full-scale range, so input scaling must match the supply. |
| Interface Type | SPI (serial) | SPI (serial) | Both use a serial SPI-compatible interface, so the host controller connection is functionally similar, though timing and frame length differ with resolution. |
| Package | SOT-23-6 (SC-70) | SOT-23-6 | Package footprint and pinout determine board layout compatibility; similar small packages ease drop-in substitution but pin functions must be verified. |
| Operating Temperature Range | -40 °C to +125 °C | -40 °C to +125 °C | The temperature range indicates suitability for industrial and automotive environments; matching ranges mean equivalent thermal robustness. |
| Power Consumption (typical) | ~13.5 mW at 5 V, 1.25 MSPS | ~18 mW at 5 V, 3 MSPS | Power draw affects thermal budget and battery life; the higher-speed part consumes more power, which must be accounted for in power-sensitive 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 | ADS7883SBDBVR | ADS7887SDCKR |
|---|---|---|
| Part Status | Active | Active |
| Number of Bits | 12 | 10 |
| Sampling Rate(Per Second) | 3M | 1.25M |
| Number of Inputs | 1 | 1 |
| Input Type | Single Ended | Single Ended |
| Data Interface | SPI | SPI |
| Configuration | S/H-ADC | 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 ~ 5.5V | 2.35V ~ 5.25V |
| Voltage - Supply, Digital | 2.7V ~ 5.5V | 2.35V ~ 5.25V |
| Operating Temperature | -40°C ~ 125°C | -40°C ~ 125°C |
| Series | - | microPOWER™ |
Frequently asked questions
What are the key differences between the ADS7887SDCKR and ADS7883SBDBVR?
The ADS7887SDCKR is a 10-bit, 1-MSPS SAR ADC in a 6-pin SC70 (DCK) package, while the ADS7883SBDBVR is a 12-bit, 3-MSPS SAR ADC in a 6-pin SOT-23 (DBV) package. The ADS7883 offers higher resolution and a faster maximum throughput, whereas the ADS7887 provides lower power consumption at a lower sample rate.
Are the ADS7887SDCKR and ADS7883SBDBVR pin-compatible?
No. The ADS7887SDCKR uses the 6-pin SC70 (DCK) package and the ADS7883SBDBVR uses the 6-pin SOT-23 (DBV) package. Although both are 6-pin SAR ADC devices with similar pin functions (VDD, GND, CS, SCLK, SDO, and analog input), the package footprints and land patterns differ, so they are not drop-in replacements on the same PCB.
What are the resolution and sampling rate specifications of each device?
The ADS7887SDCKR provides 10-bit resolution with a maximum throughput of 1 MSPS. The ADS7883SBDBVR provides 12-bit resolution with a maximum throughput of 3 MSPS. Both are successive-approximation-register (SAR) analog-to-digital converters with a pseudo-differential input.
How do the supply voltage and power consumption compare?
Both devices operate from a single 2.7 V to 5.25 V supply. The ADS7887SDCKR is specified for lower power operation at its 1-MSPS rate, while the ADS7883SBDBVR draws more current to support its higher 3-MSPS throughput and 12-bit resolution. Designers should consult the respective datasheets for exact supply current and power figures at the intended supply voltage and sample rate.
What is the analog input configuration of these ADCs?
Both the ADS7887SDCKR and ADS7883SBDBVR feature a pseudo-differential analog input, where the input signal is applied to the positive input (IN+) and a reference-level signal is applied to the negative input (IN-). The input range is referenced to the supply voltage (VDD), and both devices use a serial interface for data output.
What digital interface do the ADS7887SDCKR and ADS7883SBDBVR use?
Both devices use a SPI-compatible serial interface with chip-select (CS), serial clock (SCLK), and serial data output (SDO) pins. This allows direct connection to most microcontrollers and DSPs. The maximum SCLK frequency differs between the two parts to support their respective throughput ratings.
Can the ADS7887SDCKR be used as a substitute for the ADS7883SBDBVR in an existing design?
Not directly. Substitution requires verifying package footprint compatibility (SC70 vs SOT-23), resolution (10-bit vs 12-bit), throughput (1 MSPS vs 3 MSPS), and timing of the serial interface. A design expecting 12-bit accuracy or 3-MSPS sampling cannot be satisfied by the ADS7887SDCKR, and the PCB land pattern must be redesigned for the different package.
What are the typical applications for each converter?
The ADS7887SDCKR (10-bit, 1 MSPS) suits cost- and power-sensitive applications such as battery monitoring, portable instrumentation, and general-purpose data acquisition. The ADS7883SBDBVR (12-bit, 3 MSPS) targets higher-performance applications requiring finer resolution and faster sampling, such as motor control, power monitoring, and higher-bandwidth sensor interfaces.