Part A
ADC0848CCVX
Texas Instruments
- Lifecycle
- Active
- Stock
- 2942 PCS
- Package
- LCC-28
- Series
- Data Acquisition - Analog to Digital Converters (ADC)
Replacement verdict
Compatible functional replacement candidate
The ADC0848CCVX and ADC0848BCV share the same 8-bit successive-approximation ADC architecture, 8-channel multiplexer, and 24-pin DIP footprint, making them functionally interchangeable in most designs. The primary distinction is the grade-level accuracy specification, where the CCVX offers tighter linearity tolerances than the BCV. Designers should verify that the BCV's relaxed accuracy grade meets system requirements before substituting, but the core conversion function, interface, and pinout remain compatible.
Resolution and Architecture
High match
Package and Pinout
High match
Accuracy Grade
Validation required
Supply Voltage Range
High match
Parts at a glance
Part B
ADC0848BCV
Texas Instruments
- Lifecycle
- Active
- Stock
- 4148 PCS
- Package
- LCC-28
- 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 | ADC0848CCVX | ADC0848BCV | Why it matters |
|---|---|---|---|
| Resolution | 8 bit | 8 bit | Both are 8-bit ADCs, so quantization step size and achievable accuracy are equivalent. |
| Number of Input Channels | 8 single-ended / 4 differential | 8 single-ended / 4 differential | Channel count determines how many analog signals can be multiplexed into the converter. |
| Conversion Type | Successive approximation | Successive approximation | SAR architecture defines speed, latency, and power behavior of the converter. |
| Supply Voltage | 5 V | 5 V | Supply voltage must match the system rail and sets the input voltage range. |
| Interface | Parallel | Parallel | The digital interface must be compatible with the host microcontroller or bus. |
| Package / Mounting | 28-pin PLCC (surface mount) | 28-pin PLCC (surface mount) | Package and mounting style affect PCB footprint and assembly compatibility. |
| Operating Temperature Range | 0°C to +70°C | -40°C to +85°C | The temperature grade determines suitability for commercial versus industrial environments. |
| Accuracy Grade | Commercial grade | Industrial grade | Grade affects guaranteed linearity and error specifications over the rated temperature range. |
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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 | ADC0848CCVX | ADC0848BCV |
|---|---|---|
| Supplier | - | Rochester Electronics, LLC,Texas Instruments |
| Part Status | Obsolete | Obsolete |
| Number of Bits | 8 | 8 |
| Sampling Rate(Per Second) | 25k | 25k |
| Number of Inputs | 4, 8 | 4, 8 |
| Input Type | Differential, Pseudo-Differential, Single Ended | Differential, Pseudo-Differential, Single Ended |
| Data Interface | Parallel | Parallel |
| Configuration | MUX-ADC | MUX-ADC |
| Number of A/D Converters | 1 | 1 |
| Architecture | SAR | SAR |
| Reference Type | External | External |
| Voltage - Supply, Analog | 4.5V ~ 6V | 4.5V ~ 6V |
| Voltage - Supply, Digital | 4.5V ~ 6V | 4.5V ~ 6V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
Frequently asked questions
What are the key differences between the ADC0848CCVX and ADC0848BCV?
Both are 8-bit successive-approximation A/D converters with an 8-channel multiplexer from Texas Instruments (originally National Semiconductor). The primary difference is the accuracy grade: the ADC0848BCV is specified with a maximum total unadjusted error of ±1/2 LSB, while the ADC0848CCVX is specified with a maximum total unadjusted error of ±1 LSB. Both are offered in a 28-pin PLCC package and operate from a single 5 V supply.
Are the ADC0848CCVX and ADC0848BCV pin-compatible?
Yes. Both devices are housed in the same 28-pin PLCC (V28A) package and share the same pinout, including the 8 analog inputs, address lines, data bus, and control signals. This allows the C-grade part to be used in place of the B-grade part on the same PCB footprint, provided the relaxed accuracy specification is acceptable for the application.
What is the resolution and conversion architecture of these devices?
Both the ADC0848CCVX and ADC0848BCV are 8-bit successive-approximation register (SAR) A/D converters. They provide 8-bit resolution with a typical conversion time of approximately 30 µs, and they include an on-chip 8-channel analog multiplexer that can be configured for single-ended or differential inputs.
What supply voltage and reference requirements apply to both parts?
Both devices operate from a single +5 V supply (VCC). The analog input range and full-scale conversion are referenced to the voltage applied at the VREF pin, which can be set between 0 V and VCC. The digital and analog grounds (DGND and AGND) should be tied together at the device for proper operation.
Can the ADC0848CCVX be used as a drop-in replacement for the ADC0848BCV?
Functionally and pin-wise, yes, since both share the same package, pinout, and interface. However, the ADC0848CCVX has a wider total unadjusted error specification (±1 LSB maximum) compared to the ADC0848BCV (±1/2 LSB maximum). A designer must confirm that the looser accuracy grade of the C version meets the system's error budget before substituting it for the B version.
What digital interface do these converters use?
Both parts provide a parallel 8-bit data bus (DB0–DB7) with standard microprocessor-compatible control signals including CS, RD, WR, and INTR. The conversion result is read directly over the parallel bus, and the INTR output can be used to signal end-of-conversion to a host processor or interrupt controller.
What are the operating temperature ranges for the ADC0848CCVX and ADC0848BCV?
Both devices are specified for the commercial temperature range of 0°C to +70°C. The "C" in the suffix denotes the commercial grade, and this applies to both the B and C accuracy variants. Extended or industrial temperature versions are separate orderable part numbers and should not be assumed from these suffixes.