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Texas Instruments ADC0832CCWMX
- Part No.:
- ADC0832CCWMX
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 14-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
ADC0832CCWMX.pdf
- Description:
- IC ADC 8BIT SAR 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,059
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Product details
Overview
ADC0832CCWMX from Texas Instruments is an 8-bit successive-approximation analog-to-digital converter with a 2-channel software-configurable multiplexer, serial MICROWIRE-compatible interface, ±1 LSB total unadjusted error, 5 V single-supply operation, and 32 μs conversion time-used in embedded sensor signal conditioning where space-constrained microcontroller interfaces require low-power, ratiometric ADC functionality.
For engineers reviewing the ADC0832CCWMX datasheet, ADC0832CCWMX pinout, ADC0832CCWMX application, or ADC0832CCWMX equivalent, this page delivers verified electrical specs, SOIC-8 package mapping, differential/single-ended input configuration logic, and real-world design context for industrial monitoring, battery-powered data loggers, and analog front-end consolidation.
Technical Context
The ADC0832CCWMX implements a sample-data comparator architecture with a resistor ladder DAC for successive approximation, supporting both single-ended and differential input modes via 2-bit MUX address control shifted in on the DI line. Its internal zener shunt regulator enables V+ supply operation up to 8.5 V while maintaining VCC within safe limits.
Conversion timing is synchronized to an external clock (10–400 kHz), with automatic ½-clock MUX settling delay before SAR initiation; output data appears MSB-first on DO after the settling period, and the device enters high-impedance state when CS is high-enabling bidirectional DI/DO wiring with microcontrollers.
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 at 25°C |
| Supply Voltage Range | 4.5 V to 6.3 V - supports standard 5 V systems and tolerates rail variation |
| Conversion Time | 32 μs at 250 kHz clock - fixed latency independent of input voltage or channel selection |
| Input Range | 0 V to VCC - ratiometric operation enabled by tying VREF to VCC (internally connected) |
| Power Consumption | 2.3 mA max ICC at 5 V - enables <12 mW typical operation for battery-sensitive designs |
| Operating Temperature | 0°C to +70°C - commercial-grade thermal envelope suitable for non-automotive embedded use |
Pinout & Package
ADC0832CCWMX is housed in an 8-pin SOIC (Small Outline Integrated Circuit) package with 1.27 mm pitch, 3.9 mm body width, and surface-mount compatibility. Pin functions are validated per TI SNAS531B Figure 2 (SOIC top view).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Positive Supply | 5 V nominal power input; internally connects to VREF and powers internal zener regulator |
| GND | Ground Reference | Analog and digital common return; COM pin internally tied to GND |
| DI | Serial Data Input | Accepts MUX address bits and start bit; ignored after conversion begins |
| DO | Serial Data Output | Tri-state output delivering MSB-first conversion result; high-impedance when CS = high |
| CLK | External Clock Input | Drives internal timing; 10–400 kHz range defines conversion speed and settling margin |
| CS | Chip Select | Active-low enable; must remain low throughout entire conversion cycle |
| IN0 | Analog Input Channel 0 | Configurable as single-ended (+) or differential (+) with IN1 |
| IN1 | Analog Input Channel 1 | Configurable as single-ended (+) or differential (−) with IN0; polarity selectable via MUX address |
Key Features
| Feature | Design Value |
|---|---|
| MICROWIRE Serial Interface | Direct compatibility with COPS-family processors eliminates protocol translation overhead |
| Software-Configurable MUX | 2-bit address selects single-ended or differential mode per conversion-no hardware change required |
| Ratiometric Operation | VREF internally tied to VCC enables stable code output despite 5 V rail drift |
| No Zero/Full-Scale Trim Required | Factory-calibrated transfer function reduces BOM count and calibration labor |
| Differential Common-Mode Rejection | Adjacent-channel differential pairing rejects 60 Hz noise without external instrumentation amps |
Applications
| Industrial Sensor Monitoring | Portable Data Logger |
|---|---|
Use Scenario: Continuous acquisition of thermistor, RTD, or pressure transducer outputs in factory-floor PLC I/O modules. IC Role / Device Role / Timing Role: ADC0832CCWMX digitizes two analog sensor channels with configurable gain and offset handling via differential mode. Use Value: Eliminates external op-amp signal conditioning by accepting 0–5 V inputs directly and rejecting common-mode noise from 24 VDC field wiring. | Use Scenario: Battery-powered environmental logger capturing temperature/humidity from dual analog sensors over weeks. IC Role / Device Role / Timing Role: ADC0832CCWMX performs low-duty-cycle conversions triggered by microcontroller sleep-wake cycles. Use Value: 2.3 mA max supply current and no external reference reduce system power to <15 mW during active sampling. |
| Microcontroller Analog Front-End | Legacy System Retrofit |
Use Scenario: Adding analog sensing capability to resource-limited 8-bit MCUs lacking integrated ADC or GPIO for parallel bus. IC Role / Device Role / Timing Role: ADC0832CCWMX serves as serial peripheral with minimal pin count-DI, DO, CLK, CS, and two analog inputs. Use Value: Reduces MCU GPIO usage by 6 pins versus 8-bit parallel ADC; MICROWIRE compatibility avoids custom SPI bit-banging. | Use Scenario: Replacing obsolete 8-bit ADCs in legacy test equipment where board space and signal chain topology are fixed. IC Role / Device Role / Timing Role: ADC0832CCWMX substitutes for pin-compatible predecessors using identical SOIC-8 footprint and timing behavior. Use Value: Maintains existing PCB layout and firmware timing margins while improving production availability and long-term sourcing stability. |
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 | PDIP-8 package; same electrical specs but through-hole mounting and wider operating temp (−40°C to +85°C) | Suitable for prototyping, high-reliability industrial boards, or manual assembly environments | Select when mechanical robustness or extended temperature range is prioritized over board area |
| ADS7822U | 8-bit, 200 kSPS, SPI interface, 2.7–5.25 V supply, 1.25 mW typical power | Better speed and lower voltage operation, but requires external reference and lacks built-in VREF tie to VCC | Select when higher throughput or dual-supply flexibility is needed, and reference design overhead is acceptable |
Compared with ADC0832CN, ADC0832CCWMX offers smaller SOIC-8 footprint and commercial-temp suitability; compared with ADS7822U, it provides simpler ratiometric operation and lower system-level component count at the cost of reduced sampling rate and supply voltage range.
Availability
ADC0832CCWMX is available at Aetrix Electronics and suitable for industrial sensor monitoring, portable data loggers, and microcontroller analog front-end designs requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.
Supply support for ADC0832CCWMX 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 and embedded processing technologies, with decades of expertise in precision data converters and industrial signal chains.
The ADC083x-N series was designed for cost-sensitive, space-constrained embedded systems needing simple, reliable analog digitization-emphasizing ease of microcontroller integration, minimal external components, and flexible input configuration without trimming.
FAQ
What is the maximum clock frequency supported by ADC0832CCWMX?
The ADC0832CCWMX supports a clock frequency range of 10 kHz to 400 kHz. At 400 kHz, conversion completes in approximately 20 μs (8 clock periods plus MUX settling). Operation above 400 kHz is not characterized and may cause timing violations or inaccurate results. The 250 kHz nominal clock yields the specified 32 μs conversion time including internal delays.
Does ADC0832CCWMX require an external voltage reference?
No-ADC0832CCWMX does not require an external voltage reference. Its VREF pin is internally connected to VCC, enabling ratiometric operation where the full-scale range tracks the 5 V supply. This eliminates external reference components and simplifies design for applications where absolute accuracy is secondary to relative measurement stability.
How is differential mode configured on ADC0832CCWMX?
Differential mode on ADC0832CCWMX is configured by shifting a 2-bit MUX address ('00' for IN0+/IN1−, '01' for IN1+/IN0−) into the device via the DI line after the start bit. The selected pair is converted as VIN(+) − VIN(−), with polarity determining which input drives the positive or negative comparator terminal-enabling true differential rejection without external amplifiers.
What is the analog input voltage range specification for ADC0832CCWMX?
The ADC0832CCWMX accepts analog input voltages from GND to VCC (0 V to 5 V typical) with guaranteed accuracy. Per TI SNAS531B, inputs may extend 50 mV below GND or 50 mV above VCC without degrading conversion accuracy-provided the absolute maximum ratings (−0.3 V to VCC + 0.3 V) are not exceeded. This tolerance accommodates minor ground bounce or rail overshoot.
Can ADC0832CCWMX operate from a 3.3 V supply?
No-ADC0832CCWMX is not rated for 3.3 V operation. Its specified supply range is 4.5 V to 6.3 V DC. At 3.3 V, internal circuitry-including the resistor ladder, comparator, and zener regulator-fails to meet timing, accuracy, or functional specifications. For 3.3 V systems, consider modern alternatives like ADS7822U or TLV2541, which are explicitly characterized down to 2.7 V.
ADC0832CCWMX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- 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:
- -
ADC0832CCWMX FAQ
1.How can I place an order for ADC0832CCWMX through Aetrix?
Please submit a Request for Quotation (RFQ) for ADC0832CCWMX 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 ADC0832CCWMX reliable?
The price and inventory of ADC0832CCWMX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADC0832CCWMX is usually 5 days.
3.What payment methods are accepted for ADC0832CCWMX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADC0832CCWMX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADC0832CCWMX?
ADC0832CCWMX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADC0832CCWMX 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 ADC0832CCWMX?
For technical support, including ADC0832CCWMX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADC0832CCWMX requirements.
6.How does Aetrix verify that ADC0832CCWMX is sourced from the original manufacturer or authorized distributors?
All ADC0832CCWMX 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 ADC0832CCWMX meets industry standards.
7.What is the process for return or replacement of ADC0832CCWMX?
All ADC0832CCWMX units undergo pre-shipment inspection (PSI). If there is an issue with ADC0832CCWMX, 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 ADC0832CCWMX part is unused and in its original packaging.
Return procedure for ADC0832CCWMX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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