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Texas Instruments ADC0831CCN/NOPB
- Part No.:
- ADC0831CCN/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
ADC0831CCN/NOPB.pdf
- Description:
- IC ADC 8BIT SAR 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,018
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Product details
Overview
ADC0831CCN/NOPB from Texas Instruments is an 8-bit successive approximation analog-to-digital converter with single differential input, serial MICROWIRE-compatible interface, ±1 LSB total unadjusted error, 5 VDC single supply operation, and 32 μs conversion time. It serves as a low-power, ratiometric ADC for sensor signal digitization in embedded data acquisition systems.
For engineers reviewing the ADC0831CCN/NOPB datasheet, ADC0831CCN/NOPB pinout, ADC0831CCN/NOPB application, or ADC0831CCN/NOPB equivalent, this page delivers verified electrical specs, true pin-level circuit roles, confirmed multiplexer behavior, real-world timing constraints, and validated alternative options - all specific to the ADC0831CCN/NOPB variant.
Technical Context
The ADC0831CCN/NOPB implements a sample-data comparator architecture with fixed single differential input (VIN+ and VIN−), no MUX addressing required, and internal COM tied to GND. Its serial interface uses CS-controlled start bit detection followed by MSB-first output on DO, with no SE (shift enable) line - unlike ADC0838-N.
It operates in ratiometric mode (VREF = VCC) or with external reference, supports 0 V to 5 V input range at 5 V supply, and features built-in shunt regulator capability via V+ pin for high-voltage supply compatibility. Total unadjusted error includes offset, full-scale, linearity, and multiplexer errors - all specified at ±1 LSB over 0°C to +70°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 8 bits - delivers 256 discrete digital codes across full-scale input range. |
| Total Unadjusted Error | ±1 LSB - maximum deviation from ideal transfer curve without calibration. |
| Conversion Time | 32 μs - fixed duration per conversion at 250 kHz clock; enables ~31.25 kSPS throughput. |
| Supply Voltage | 4.5 VDC to 6.3 VDC - supports industrial 5 V rails and tolerates transient overvoltage. |
| Input Range | 0 V to 5 V with single 5 V supply - requires no negative rail or level-shifting circuitry. |
| Power Dissipation | 15 mW typical - enables battery-powered or thermally constrained designs. |
| Digital Interface | MICROWIRE-compatible serial I/O - direct connection to COPS-family processors without glue logic. |
Pinout & Package
ADC0831CCN/NOPB is housed in an 8-pin plastic dual in-line package (PDIP), 0.3 inch width, with through-hole mounting. Pin functions are validated per TI SNAS531B Figure 4 (top view) and functional description.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Positive supply rail | Supplies core logic and analog circuitry; also serves as internal VREF when used ratiometrically. |
| GND | Ground reference | Analog and digital common return; COM internally connected to GND. |
| VIN+ | Differential positive input | High-side analog input terminal; voltage difference vs. VIN− determines conversion result. |
| VIN− | Differential negative input | Low-side analog input terminal; sets common-mode reference point for differential measurement. |
| CLK | Serial clock input | Synchronizes MUX setup and SAR conversion; accepts 10–400 kHz square wave. |
| CS | Chip select input | Active-low initiation signal; must remain low for entire conversion cycle (~32 μs). |
| DI | Data input | Accepts start bit and MUX address - but unused on ADC0831CCN/NOPB due to fixed single differential configuration. |
| DO | Data output | Tri-state serial output; delivers 8-bit MSB-first result after conversion; no LSB-first mode supported. |
Key Features
| Feature | Design Value |
|---|---|
| Fixed single differential input | Eliminates need for external MUX control logic or address sequencing - simplifies firmware and PCB layout. |
| No zero or full-scale adjustment required | Reduces production calibration steps and eliminates trim potentiometers or DAC-based offset correction circuits. |
| Ratiometric operation support | Enables direct tie of VREF to VCC, making ADC output insensitive to supply drift - critical for battery-powered sensors. |
| Shunt regulator via V+ pin | Allows operation from supplies up to 8.5 V using internal zener; removes need for external LDO when VCC > 6.3 V. |
| TTL/MOS logic compatibility | Supports direct interfacing with legacy microcontrollers and FPGAs without level translators or bus buffers. |
Applications
| Temperature Monitoring | Industrial Sensor Interface |
|---|---|
|
Use Scenario: Digitizing output of thermistor or RTD bridge circuits in HVAC controllers and PLC analog input modules. IC Role / Device Role / Timing Role: ADC0831CCN/NOPB performs single-shot differential conversion of bridge imbalance voltage with 32 μs latency and ±1 LSB accuracy. Use Value: Enables cost-effective, self-contained analog front-end with no external op-amp gain stage needed for 0–5 V bridge outputs. |
Use Scenario: Converting 4–20 mA current loop signals via precision shunt resistor in factory automation I/O cards. IC Role / Device Role / Timing Role: ADC0831CCN/NOPB acts as isolated-side ADC, accepting differential voltage across shunt with common-mode rejection up to VCC + 0.05 V. Use Value: Achieves 12-bit-equivalent effective resolution in 4–20 mA applications by leveraging full 8-bit span across 1–5 V range. |
| Embedded Data Loggers | Portable Instrumentation |
|
Use Scenario: Sampling battery voltage, panel temperature, and ambient light in solar charge controllers and remote telemetry units. IC Role / Device Role / Timing Role: ADC0831CCN/NOPB provides low-power, single-supply digitization with 15 mW consumption and 0°C to +70°C operating range. Use Value: Extends battery life in field-deployed loggers by eliminating standby current overhead from external references or regulators. |
Use Scenario: Measuring transducer outputs (e.g., pressure, strain gauge) in handheld test equipment with limited PCB area. IC Role / Device Role / Timing Role: ADC0831CCN/NOPB integrates MUX, SAR core, and serial interface in 8-pin PDIP - reducing component count vs. discrete ADC + shift register solutions. Use Value: Cuts BOM cost and board space by 40% compared to equivalent function implemented with separate comparator, latch, and logic ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit serial ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADC0832CCN/NOPB | 2-channel software-configurable MUX; requires 3-bit address; same 8-bit resolution and ±1 LSB error. | Supports dual single-ended inputs or one differential pair; adds channel selection flexibility but increases firmware complexity. | Select ADC0832CCN/NOPB only if dual-input monitoring is required; ADC0831CCN/NOPB remains optimal for fixed differential sensing. |
| ADS7816U | 8-bit, 200 kSPS, SPI interface, internal reference, SO-8 package; ±0.5 LSB INL; 2.7–5.25 V supply. | Higher speed and integrated reference simplify design but require SPI-capable host; not MICROWIRE-compatible. | Choose ADS7816U for faster sampling or lower supply voltage; ADC0831CCN/NOPB retains advantage in legacy COPS processor integration and 5 V-only systems. |
Compared with ADC0832CCN/NOPB, ADC0831CCN/NOPB reduces firmware overhead and eliminates MUX timing uncertainty; versus ADS7816U, it offers proven 5 V robustness and direct COPS-family compatibility - critical for long-lifecycle industrial designs.
Availability
ADC0831CCN/NOPB is available at Aetrix Electronics and suitable for temperature monitoring, industrial sensor interface, embedded data loggers, portable instrumentation, and battery-powered measurement systems requiring stable component supply and long-term obsolescence management.
Supply support for ADC0831CCN/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 power management technologies, with decades of heritage in precision data converters.
The ADC0831CCN/NOPB belongs to TI's legacy 8-bit serial ADC family designed for cost-sensitive, low-power, and microprocessor-integrated data acquisition - emphasizing ease of interface, minimal external components, and ratiometric stability.
FAQ
What is the maximum clock frequency supported by ADC0831CCN/NOPB?
The ADC0831CCN/NOPB supports a maximum clock frequency of 400 kHz, as specified in its AC characteristics table. At this rate, conversion time reduces to 20 μs, enabling up to 50 kSPS throughput. Operation above 400 kHz risks timing violations in the SAR logic and may cause incorrect output codes. The device is fully characterized down to 10 kHz, allowing flexible trade-offs between speed and EMI reduction in noise-sensitive environments.
Does ADC0831CCN/NOPB require external zero or full-scale calibration?
No, ADC0831CCN/NOPB does not require external zero or full-scale calibration. Its architecture ensures monotonicity and guarantees ±1 LSB total unadjusted error across 0°C to +70°C without trimming. Zero error is defined relative to the ideal ½ LSB transition point (9.8 mV at 5 V reference), and full-scale error is bounded within the same specification - eliminating production calibration steps and associated test fixtures.
Can ADC0831CCN/NOPB operate with a 3.3 V supply?
No, ADC0831CCN/NOPB is not rated for 3.3 V operation. Its absolute minimum supply voltage is 4.5 VDC, and operating below this violates the guaranteed specifications including total unadjusted error, conversion time, and logic threshold compatibility. For 3.3 V systems, consider modern alternatives like ADS7816U or TLV1543IDR, which are explicitly characterized at 2.7–3.6 V.
What is the purpose of the V+ pin on ADC0831CCN/NOPB?
The V+ pin on ADC0831CCN/NOPB connects to an internal 6.3–8.5 V zener diode that functions as a shunt regulator. When driven from a high-voltage source (e.g., 12 V), V+ supplies current through an external limiting resistor to generate a regulated ~5 V at VCC - enabling operation from supplies exceeding the 6.5 V absolute maximum rating of VCC. This eliminates the need for an external LDO in multi-rail systems.
Is ADC0831CCN/NOPB compatible with SPI interfaces?
ADC0831CCN/NOPB is not SPI-compatible. It implements TI's proprietary MICROWIRE serial protocol: CS-active initiation, start-bit–driven addressing (unused on ADC0831), and MSB-first DO output with no SS/SS̅ or MOSI/MISO framing. While timing overlaps partially with SPI Mode 0, lack of standard frame synchronization and absence of dedicated data direction control prevent reliable SPI bus sharing without bit-banging GPIO emulation.
ADC0831CCN/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Number of Bits:
- 8
- Sampling Rate (Per Second):
- 31.25k
- Number of Inputs:
- 1
- Input Type:
- Differential, Pseudo-Differential, Single Ended
- Data Interface:
- SPI
- Configuration:
- MUX-ADC
- Ratio - S/H:ADC:
- -
- Number of A/D Converters:
- 1
- Architecture:
- SAR
- Reference Type:
- External
- Voltage - Supply, Analog:
- 4.5V ~ 6.3V
- Voltage - Supply, Digital:
- 4.5V ~ 6.3V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 8-PDIP
- Mounting Type:
- Through Hole
- Grade:
- -
- Qualification:
- -
ADC0831CCN/NOPB FAQ
1.How can I place an order for ADC0831CCN/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for ADC0831CCN/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 ADC0831CCN/NOPB reliable?
The price and inventory of ADC0831CCN/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADC0831CCN/NOPB is usually 5 days.
3.What payment methods are accepted for ADC0831CCN/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADC0831CCN/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADC0831CCN/NOPB?
ADC0831CCN/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADC0831CCN/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 ADC0831CCN/NOPB?
For technical support, including ADC0831CCN/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADC0831CCN/NOPB requirements.
6.How does Aetrix verify that ADC0831CCN/NOPB is sourced from the original manufacturer or authorized distributors?
All ADC0831CCN/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 ADC0831CCN/NOPB meets industry standards.
7.What is the process for return or replacement of ADC0831CCN/NOPB?
All ADC0831CCN/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with ADC0831CCN/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 ADC0831CCN/NOPB part is unused and in its original packaging.
Return procedure for ADC0831CCN/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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