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Texas Instruments ADC0832CCWM
- Part No.:
- ADC0832CCWM
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 14-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
ADC0832CCWM.pdf
- Description:
- IC ADC 8BIT SAR 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,904
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Product details
Overview
ADC0832CCWM from Texas Instruments is an 8-bit successive-approximation analog-to-digital converter with a 2-channel software-configurable multiplexer, TI MICROWIRE-compatible serial interface, ±1 LSB total unadjusted error, 5 V single-supply operation, and 32 μs conversion time. It supports single-ended or differential input modes and is used in embedded sensor signal conditioning where compact serial ADCs interface directly to microcontrollers.
For engineers reviewing the ADC0832CCWM datasheet, ADC0832CCWM pinout, ADC0832CCWM application, or ADC0832CCWM equivalent, key selection considerations include its 8-pin SOIC package, ratiometric or fixed-reference operation, differential common-mode rejection capability, and compatibility with low-pin-count microprocessor I/O ports via three-wire serial protocol.
Technical Context
The ADC0832CCWM implements a sample-data comparator architecture with a resistor ladder DAC for successive approximation. Its 2-channel multiplexer is software-addressed via a 3-bit shift sequence (start bit + 2-bit address) on the DI line prior to conversion initiation.
Conversion output is serially shifted out MSB-first on the DO line synchronized to the falling edge of CLK, with SAR status signaling active conversion. The device supports both ratiometric operation (VREF = VCC) and absolute reference configurations, and includes internal zener-based shunt regulation enabling operation from high-voltage supplies via the V+ pin.
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 - defines worst-case deviation from ideal transfer curve without calibration |
| Supply Voltage Range | 4.5 V to 6.3 V - supports standard 5 V systems and tolerates supply variation |
| Conversion Time | 32 μs - enables up to ~31.25 kSPS sampling rate at maximum clock frequency |
| Input Configuration | 2-channel MUX with single-ended or differential mode - allows flexible transducer interfacing without external switching |
| Reference Operation | Ratiometric or fixed VREF - permits direct tie to VCC for supply-noise immunity or precision reference for absolute accuracy |
| Power Dissipation | 15 mW at 5 V - enables use in thermally constrained or battery-powered embedded designs |
Pinout & Package
ADC0832CCWM is housed in an 8-pin SOIC (Small Outline Integrated Circuit) package with gull-wing leads, 1.27 mm pitch, and 0.150-inch body width. Pin functions are validated per TI SNAS531B Figure 2 (SOIC top view).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Positive Supply | Primary 4.5–6.3 V power rail; internally powers logic and analog circuitry |
| GND | Ground Reference | Analog and digital common return; must be low-impedance for accurate conversion |
| DI | Data Input | Serial address/data line for MUX configuration; accepts start bit + channel/address bits |
| DO | Data Output | Tri-state serial output; shifts MSB-first conversion result synchronized to CLK falling edge |
| CLK | Clock Input | Asynchronous master clock (10–400 kHz); controls timing of address latching and data shifting |
| CS | Chip Select | Active-low enable; must remain low for entire conversion cycle including address and data phases |
| IN0 | Analog Input Channel 0 | First multiplexed analog input; configurable as single-ended (+) or differential (+/−) with IN1 |
| IN1 | Analog Input Channel 1 | Second multiplexed analog input; pairs with IN0 for differential mode or operates independently |
Key Features
| Feature | Design Value |
|---|---|
| TI MICROWIRE-Compatible Serial Interface | Direct connection to COPS-family processors and standard shift registers without glue logic |
| Software-Configurable Multiplexer | Selects single-ended or differential input mode per conversion, enabling dynamic reconfiguration |
| Differential Input Capability | Rejects common-mode noise (e.g., 60 Hz interference) by sampling adjacent channels with sub-microsecond timing |
| Shunt Regulator on V+ Pin | Allows operation from supplies >6.5 V (up to 8.5 V) using external current-limiting resistor |
| No Zero or Full-Scale Adjustment Required | Factory-trimmed performance eliminates manual calibration in production systems |
Applications
| Industrial Sensor Monitoring | Embedded Microcontroller Data Acquisition |
|---|---|
Use Scenario: Monitoring temperature, pressure, or current signals from analog sensors in PLC modules or motor drives. IC Role / Device Role / Timing Role: ADC0832CCWM digitizes conditioned analog outputs with 8-bit resolution and serially transmits results to an MCU over three wires. Use Value: Reduces board space and EMI susceptibility by locating conversion at sensor, while supporting differential inputs to reject industrial noise. | Use Scenario: Reading potentiometer wiper voltage, battery voltage, or auxiliary analog inputs in 8-bit/16-bit MCU-based consumer devices. IC Role / Device Role / Timing Role: ADC0832CCWM serves as a low-cost, pin-efficient ADC peripheral, interfacing directly to GPIO pins with minimal firmware overhead. Use Value: Eliminates need for parallel bus or external SPI controller; 32 μs conversion enables real-time response in interactive UI or control loops. |
| Automotive Body Electronics | Portable Instrumentation Front-End |
Use Scenario: Converting cabin ambient sensor outputs (e.g., humidity, light level) in automotive body control units operating at 5 V. IC Role / Device Role / Timing Role: ADC0832CCWM acts as a ratiometric ADC with VREF tied to VCC, ensuring stable code output despite supply ripple. Use Value: Tolerates automotive-grade supply variation (4.5–6.3 V) and provides ±1 LSB accuracy without external reference components. | Use Scenario: Digitizing low-amplitude transducer outputs (e.g., strain gauge bridges, thermocouples) in handheld test equipment. IC Role / Device Role / Timing Role: ADC0832CCWM operates in differential mode to maximize SNR, rejecting common-mode offset and noise from long sensor cables. Use Value: Achieves effective resolution beyond 8 bits in noisy environments via differential sampling and internal zero-error cancellation. |
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 |
|---|---|---|---|
| ADC0832CN | 8-pin PDIP package; identical electrical specs and pinout; wider −40°C to +85°C temp range | Suitable for through-hole prototyping or industrial environments requiring extended temperature operation | Select ADC0832CN when board assembly uses through-hole technology or ambient temperature exceeds 70°C |
| MCP3002-I/P | 10-bit resolution; SPI-compatible interface; 8-pin PDIP; 2.7–5.5 V supply; no internal shunt regulator | Better resolution for precision sensing but lacks V+ shunt regulation and TI MICROWIRE compatibility | Choose MCP3002-I/P when higher resolution is critical and supply is strictly ≤5.5 V with no high-voltage operation needed |
Compared with ADC0832CN, the ADC0832CCWM offers SOIC packaging for surface-mount reliability and lower profile, while the MCP3002-I/P trades off MICROWIRE compatibility and shunt regulation for increased resolution-making ADC0832CCWM optimal for cost-sensitive, 5 V ratiometric systems needing compact layout and supply flexibility.
Availability
ADC0832CCWM is available at Aetrix Electronics and suitable for industrial sensor monitoring, embedded microcontroller data acquisition, and automotive body electronics requiring stable component supply across production lifecycles.
Supply support for ADC0832CCWM 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 company specializing in analog and embedded processing technologies, with leadership in data converters, power management, and interface ICs.
The ADC0832CCWM belongs to TI's legacy 8-bit serial ADC family designed for cost-effective, low-pin-count analog digitization in resource-constrained microcontroller systems-emphasizing ease of interface, ratiometric stability, and multiplexer flexibility.
FAQ
What is the operating temperature range for the ADC0832CCWM?
The ADC0832CCWM is specified for commercial temperature operation from 0°C to +70°C, as confirmed in the SNAS531B datasheet Operating Ratings table. This range applies specifically to the CCWM suffix variant and differs from the extended −40°C to +85°C range of the CN and CIWM variants. Designers must verify thermal margins in end-equipment enclosures to ensure junction temperature remains within limits.
Does the ADC0832CCWM require external zero or full-scale calibration?
No, the ADC0832CCWM does not require external zero or full-scale adjustment. Its total unadjusted error is guaranteed at ±1 LSB over temperature and supply, and factory trimming ensures monotonicity and linearity without user calibration. The device supports optional zero-offset biasing via differential mode if VIN(MIN) is non-zero, but this is a functional configuration-not a calibration procedure.
Can the ADC0832CCWM operate with a reference voltage lower than 5 V?
Yes, the ADC0832CCWM supports reference voltages down to 1.3 kΩ minimum input resistance (per Electrical Characteristics table), enabling use with reduced spans such as 2.5 V or 1.25 V references. However, LSB size scales linearly with VREF (e.g., 1 LSB = VREF/256), so lower VREF increases sensitivity to noise and source impedance errors-requiring careful layout and low-impedance driving.
How does the ADC0832CCWM handle differential input configurations?
The ADC0832CCWM supports differential mode between IN0 and IN1 using a 2-bit MUX address sequence. In this mode, it measures the voltage difference (IN0 − IN1) and rejects common-mode signals present on both inputs. The differential pair is restricted to these two channels only, and polarity is programmable-allowing either IN0 or IN1 to serve as the positive input depending on the address bits sent during setup.
Is the ADC0832CCWM pin-compatible with other members of the ADC083x family?
The ADC0832CCWM shares identical pin functions and SOIC package dimensions with ADC0831CCWM and ADC0834CCN in their respective packages, but pin count and channel count differ across the family: ADC0831 is 8-pin/1-channel, ADC0832 is 8-pin/2-channel, and ADC0834 is 14-pin/4-channel. Thus, ADC0832CCWM is not pin-compatible with ADC0834 or ADC0838 variants due to differing pin counts and internal routing.
ADC0832CCWM Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Number of Bits:
- 8
- Sampling Rate (Per Second):
- 31.25k
- Number of Inputs:
- 2
- 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:
- 0°C ~ 70°C
- Supplier Device Package:
- 14-SOIC
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
ADC0832CCWM FAQ
1.How can I place an order for ADC0832CCWM through Aetrix?
Please submit a Request for Quotation (RFQ) for ADC0832CCWM 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 ADC0832CCWM reliable?
The price and inventory of ADC0832CCWM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADC0832CCWM is usually 5 days.
3.What payment methods are accepted for ADC0832CCWM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADC0832CCWM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADC0832CCWM?
ADC0832CCWM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADC0832CCWM 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 ADC0832CCWM?
For technical support, including ADC0832CCWM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADC0832CCWM requirements.
6.How does Aetrix verify that ADC0832CCWM is sourced from the original manufacturer or authorized distributors?
All ADC0832CCWM 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 ADC0832CCWM meets industry standards.
7.What is the process for return or replacement of ADC0832CCWM?
All ADC0832CCWM units undergo pre-shipment inspection (PSI). If there is an issue with ADC0832CCWM, 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 ADC0832CCWM part is unused and in its original packaging.
Return procedure for ADC0832CCWM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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