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Texas Instruments ADC0848CCV/NOPB
- Part No.:
- ADC0848CCV/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 28-LCC (J-Lead)
- Datasheet:
-
ADC0848CCV/NOPB.pdf
- Description:
- IC ADC 8BIT SAR 28PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:3,693
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Product details
Overview
ADC0848CCV/NOPB from Texas Instruments is an 8-bit successive-approximation analog-to-digital converter with integrated 8-channel analog multiplexer, ratiometric operation capability, ±1 LSB total unadjusted error, 40 μs conversion time, and single 5 V supply operation - used in microprocessor-based data acquisition systems for transducer signal digitization.
For engineers reviewing the ADC0848CCV/NOPB datasheet, ADC0848CCV/NOPB pinout, ADC0848CCV/NOPB application, or ADC0848CCV/NOPB equivalent, key selection criteria include its software-configurable differential/pseudo-differential/single-ended input modes, internal clock, TRI-STATE output latches for direct microprocessor bus interfacing, and −40°C to +85°C industrial temperature range.
Technical Context
The ADC0848CCV/NOPB implements a sampled-data comparator architecture enabling true differential voltage measurement between selected "+" and "−" inputs, with common-mode rejection optimized for low-frequency noise (e.g., 60 Hz). Its MUX address latch (MA0–MA4) shares pins with DB0–DB4 and is loaded when RD is high, allowing channel reconfiguration without interrupting ongoing conversions.
Conversion is initiated by WR edge-triggered strobing while CS is active; the internal clock sets tC ≤ 40 μs. The INTR output signals completion, and RD/CS low enables data readout with automatic INTR reset. Reference flexibility supports both ratiometric (VREF = VCC) and absolute-accuracy (external precision reference) configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 8 bits - delivers 256 discrete digital codes over full-scale input range. |
| Total Unadjusted Error | ±1 LSB - includes offset, full-scale, linearity, and multiplexer errors; no calibration required for basic operation. |
| Conversion Time | 40 μs - fixed duration set by internal clock; enables up to 25 kSPS sustained sampling rate. |
| Supply Voltage | 4.5 VDC to 6.0 VDC - operates from standard 5 V rail with ±5% tolerance; supports ratiometric referencing. |
| Input Range | 0 V to 5 V with single 5 V supply - analog inputs tolerate −0.05 V to VCC + 0.05 V without accuracy degradation. |
| Power Dissipation | 15 mW typical - low quiescent current (ICC ≤ 2.5 mA) suitable for power-constrained embedded systems. |
| Operating Temperature | −40°C to +85°C - qualified for industrial environments; specified performance across full range. |
Pinout & Package
ADC0848CCV/NOPB is housed in a 28-pin PLCC (Plastic Leaded Chip Carrier) package with gull-wing leads, lead finish unspecified per TI documentation, moisture sensitivity level not published, and body marking "ADC0848 CCV".
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1–4, 25–28 (MA0–MA4) | MUX Address / Data Bus | Shared with DB0–DB4; latched on rising WR edge when RD = high to select input channel and mode. |
| 5–12 (DB0–DB7) | Digital Output Bus | TRI-STATE outputs drive microprocessor data bus directly; enabled by CS and RD low. |
| 13 (INTR) | Interrupt Output | Active-low open-drain signal asserted after conversion completes; reset by CS+RD low or WR falling edge. |
| 14 (VREF) | Reference Input | Defines full-scale span (VIN(MAX) − VIN(MIN)); accepts 1.1 kΩ minimum source impedance; max = VCC. |
| 15 (AGND) | Analog Ground | Separate ground return for analog circuitry; must be tied to system AGND with low-impedance path. |
| 16 (DGND) | Digital Ground | Ground return for logic interface; should connect to AGND at single point near device. |
| 17 (VCC) | Power Supply | +5 VDC supply for analog and digital sections; bypass capacitor required at pin. |
| 18–21 (CH1–CH4) | Analog Input Channels | First four of eight single-ended inputs; configurable as differential pairs (CH1/CH2, CH3/CH4) or pseudo-differential. |
| 22–24 (CH5–CH8) | Analog Input Channels | Additional four channels exclusive to ADC0848; support same configuration modes as CH1–CH4. |
Key Features
| Feature | Design Value |
|---|---|
| Software-configurable MUX modes | Single-ended, differential, or pseudo-differential input selection via MA0–MA4 address latch - eliminates external switching hardware. |
| Ratiometric or absolute reference operation | VREF pin accepts either VCC (ratiometric) or precision reference (e.g., LM385); enables transducer systems with varying supply rails. |
| Microprocessor bus compatibility | TRI-STATE outputs, CS/WR/RD control lines, and shared address/data pins allow memory-mapped or I/O-mapped interface without glue logic. |
| No zero or full-scale adjustment required | Factory trimmed offset and gain deliver ±1 LSB error across temperature; reduces calibration overhead in production test. |
| Differential common-mode rejection | Supports low-frequency noise rejection (e.g., 60 Hz) via differential sampling; effective for sensor front-ends with shared interference sources. |
Applications
| Industrial Sensor Interface | Automotive Ratiometric Transducers |
|---|---|
|
Use Scenario: Digitizing outputs from strain gauges, RTDs, and pressure sensors in PLC modules and condition monitoring units. IC Role / Device Role / Timing Role: ADC0848CCV/NOPB acts as the primary A/D front-end, accepting conditioned analog signals and delivering 8-bit digital values to an 8-bit microcontroller via parallel bus. Use Value: Pseudo-differential mode allows CH4 to serve as programmable reference for CH1–CH3, simplifying multi-sensor biasing without external op-amps. |
Use Scenario: Reading throttle position, coolant temperature, and manifold absolute pressure sensors in engine control units (ECUs). IC Role / Device Role / Timing Role: ADC0848CCV/NOPB performs ratiometric conversion using VCC as VREF, tracking supply variations to maintain consistent code-to-voltage mapping despite battery voltage drift. Use Value: Eliminates need for separate precision reference IC, reducing BOM count and layout area in cost-sensitive automotive subsystems. |
| Legacy Microprocessor DAQ Systems | Embedded Test Equipment |
|
Use Scenario: Retrofitting analog monitoring into NSC800- or INS8039-based industrial controllers with limited I/O resources. IC Role / Device Role / Timing Role: ADC0848CCV/NOPB serves as drop-in A/D peripheral, using existing data/address bus and control lines (CS/WR/RD) without timing modifications. Use Value: Internal clock and TRI-STATE outputs enable synchronous operation with legacy 8-bit CPUs running at ≤ 2 MHz, avoiding external clock generation. |
Use Scenario: Portable multimeters and handheld diagnostic tools requiring compact, low-power analog digitization. IC Role / Device Role / Timing Role: ADC0848CCV/NOPB functions as the core signal acquisition component, converting sensor outputs into display-ready values under firmware control. Use Value: 15 mW power consumption and −40°C to +85°C rating support battery-powered, field-deployable instruments with wide environmental tolerance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microprocessor-compatible ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADC0844CCN/NOPB | 4-channel MUX only; identical electrical specs, package (20-pin PDIP), and timing; lacks CH5–CH8 pins. | Suitable where ≤4 analog inputs are needed; lower pin count eases routing on dense PCBs. | Select ADC0844CCN/NOPB when channel count and through-hole packaging are prioritized over 8-channel flexibility. |
| MAX187ACPP+ | Serial SPI interface; 12-bit resolution; 15 μs conversion; requires external reference and clock; 20-pin PDIP. | Better resolution and smaller footprint but demands MCU SPI support and additional reference design effort. | Choose MAX187ACPP+ when higher accuracy and serial interface justify redesign and added component count. |
Compared with ADC0844CCN/NOPB, ADC0848CCV/NOPB provides double the input channels in a larger PLCC package, while MAX187ACPP+ trades parallel simplicity for higher resolution and serial integration - making ADC0848CCV/NOPB optimal for 8-channel, 8-bit, bus-tied industrial DAQ where pin compatibility and minimal firmware changes are critical.
Availability
ADC0848CCV/NOPB is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive ratiometric transducer reading, and legacy microprocessor data acquisition systems requiring stable component supply and long-term obsolescence management.
Supply support for ADC0848CCV/NOPB includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and connectivity technologies, with decades of heritage in precision data converters and industrial-grade ICs.
The ADC0848CCV/NOPB belongs to TI's legacy 8-bit µP-compatible ADC family, designed specifically for cost-sensitive, microprocessor-coupled data acquisition in industrial automation, automotive subsystems, and test equipment.
FAQ
What is the maximum analog input voltage range supported by the ADC0848CCV/NOPB?
The ADC0848CCV/NOPB supports an analog input range from −0.05 V to VCC + 0.05 V, which translates to 0 V to 5.05 V with a nominal 5 V supply. This tolerance prevents forward conduction of internal input protection diodes and ensures accurate conversion across the full 0 V to 5 V span when VCC ≥ 4.95 V over temperature and tolerance.
Does the ADC0848CCV/NOPB require external clock circuitry?
No, the ADC0848CCV/NOPB contains an internal clock generator and requires no external clock components. Conversion timing is fixed at ≤40 μs, determined solely by the internal oscillator - simplifying design and eliminating clock synchronization concerns in µP-based systems.
Can the ADC0848CCV/NOPB operate in differential mode with all eight channels?
No. Differential mode is limited to channel pairs CH1/CH2 and CH3/CH4 per Table 2 in the datasheet; CH5–CH8 are only supported in single-ended or pseudo-differential configurations. The ADC0848CCV/NOPB does not support differential pairing beyond the first four channels.
What is the purpose of the INTR pin on the ADC0848CCV/NOPB?
The INTR pin on the ADC0848CCV/NOPB is an active-low interrupt output that signals completion of a conversion cycle. It remains low until cleared by either a falling edge on WR (resetting prior to new conversion) or simultaneous assertion of CS and RD (reading data and resetting INTR).
Is the ADC0848CCV/NOPB still in active production?
No - according to TI's Packaging Information Addendum, ADC0848CCV/NOPB is marked "Obsolete" with status "Production", indicating it is no longer manufactured but may remain available from authorized distributors and inventory channels. Aetrix Electronics maintains traceable stock for legacy design support and continuity programs.
ADC0848CCV/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 28-LCC (J-Lead)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Number of Bits:
- 8
- Sampling Rate (Per Second):
- 25k
- Number of Inputs:
- 4, 8
- Input Type:
- Differential, Pseudo-Differential, Single Ended
- Data Interface:
- Parallel
- Configuration:
- MUX-ADC
- Ratio - S/H:ADC:
- -
- Number of A/D Converters:
- 1
- Architecture:
- SAR
- Reference Type:
- External
- Voltage - Supply, Analog:
- 4.5V ~ 6V
- Voltage - Supply, Digital:
- 4.5V ~ 6V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 28-PLCC (11.51x11.51)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
ADC0848CCV/NOPB FAQ
1.How can I place an order for ADC0848CCV/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for ADC0848CCV/NOPB on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for ADC0848CCV/NOPB reliable?
The price and inventory of ADC0848CCV/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADC0848CCV/NOPB is usually 5 days.
3.What payment methods are accepted for ADC0848CCV/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADC0848CCV/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADC0848CCV/NOPB?
ADC0848CCV/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADC0848CCV/NOPB order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for ADC0848CCV/NOPB?
For technical support, including ADC0848CCV/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADC0848CCV/NOPB requirements.
6.How does Aetrix verify that ADC0848CCV/NOPB is sourced from the original manufacturer or authorized distributors?
All ADC0848CCV/NOPB products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ADC0848CCV/NOPB meets industry standards.
7.What is the process for return or replacement of ADC0848CCV/NOPB?
All ADC0848CCV/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with ADC0848CCV/NOPB, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The ADC0848CCV/NOPB part is unused and in its original packaging.
Return procedure for ADC0848CCV/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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