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Texas Instruments ADC08832IN/NOPB
- Part No.:
- ADC08832IN/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
ADC08832IN/NOPB.pdf
- Description:
- IC ADC 8BIT SAR 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,049
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Product details
Overview
ADC08832IN/NOPB from Texas Instruments is an 8-bit successive-approximation analog-to-digital converter with integrated 2-channel analog multiplexer, track/hold function, and 3-wire serial MICROWIRE-compatible interface. It operates from a single 5V supply, delivers ±1 LSB total unadjusted error, and achieves up to 153 ksps sampling rate at 2 MHz clock. It is used in embedded sensor digitization where low pin count, noise immunity, and software-configurable input modes (single-ended or differential) are required.
For engineers reviewing the ADC08832IN/NOPB datasheet, ADC08832IN/NOPB pinout, ADC08832IN/NOPB application, or ADC08832IN/NOPB equivalent, key selection criteria include its fixed internal VREF tied to VCC, 8-pin SOIC/VSSOP package, 4 μs max conversion time, and support for remote sensing in electrically noisy environments without external reference components.
Technical Context
The ADC08832IN/NOPB implements a successive-approximation register (SAR) architecture with an on-chip capacitor array and resistor ladder for bit-weighting. Its analog front-end includes a built-in track/hold that samples the selected channel during MUX settling (½ clock period), enabling accurate acquisition before conversion begins.
It uses a 3-wire serial interface (CS, CLK, DI/DO) compliant with MICROWIRE timing, supporting MSB-first data output only. The internal reference is hardwired to VCC - eliminating the VREF pin present on ADC08831 - and the multiplexer is configured via a 2-bit address shifted in on DI prior to conversion start.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 8 bits - delivers 256 discrete digital codes over full-scale input range |
| Conversion Time | 4 μs maximum at 2 MHz clock - defines minimum inter-conversion interval for high-speed sampling |
| Total Unadjusted Error | ±1 LSB - guarantees monotonicity and no missing codes across −40°C to +85°C |
| Supply Voltage Range | 4.5 V to 6.0 V - supports industrial-grade 5V rail tolerance and brown-out resilience |
| Sampling Rate | 153 ksps - determined by fCLK/13, enabling real-time waveform capture up to ~70 kHz Nyquist |
| Power Dissipation | 8.5 mW typical at 5V/CS low - enables battery-sensitive or thermally constrained placements |
| Analog Input Range | GND to VCC (with ±50 mV diode clamp margin) - allows direct interfacing to 0–5 V sensors without level-shifting |
Pinout & Package
ADC08832IN/NOPB is housed in an 8-pin SOIC (D) or VSSOP (DGK) surface-mount package. Both variants share identical pin functions and spacing per TI's SNAS015C datasheet.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VCC) | Positive supply | Provides power and serves as internal voltage reference source - no external VREF connection needed |
| 2 (GND) | Ground reference | Analog and digital common return - must be connected to clean analog ground plane per layout guidelines |
| 3 (DI) | Serial data input | Accepts MUX address bits (SGL/DIF, ODD/SIGN) and start bit only during CS low; disabled during conversion |
| 4 (CS) | Chip select | Active-low enable - initiates conversion sequence and controls low-power mode entry when high |
| 5 (CLK) | Serial clock input | Synchronizes MUX addressing and SAR conversion; supports 10 kHz–2 MHz with 40–60% duty cycle |
| 6 (DO) | Serial data output | Tri-state output delivering MSB-first conversion result; enters high-impedance state when CS is high |
| 7 (IN0) | Analog input channel 0 | Configurable as positive or negative input in differential mode, or as single-ended input referenced to GND |
| 8 (IN1) | Analog input channel 1 | Paired with IN0 for differential operation; supports same configuration flexibility and voltage range |
Key Features
| Feature | Design Value |
|---|---|
| Software-configurable input modes | Single-ended, differential, or pseudo-differential operation selectable per conversion via 2-bit MUX address |
| Integrated track/hold | Eliminates need for external sample-and-hold circuitry; acquires signal during ½-clock MUX settling window |
| VCC-referenced architecture | Removes VREF pin and external reference component - reduces BOM count and layout complexity |
| Low-power standby mode | Reduces supply current to ~1.3 mA (typ) when CS = high - cuts static power without losing configuration state |
| MICROWIRE-compatible serial interface | Enables direct connection to microcontrollers, PLDs, or shift registers using only three I/O pins and minimal firmware overhead |
Applications
| Remote Sensor Digitization | Industrial Process Monitoring |
|---|---|
|
Use Scenario: Converting temperature, pressure, or current-loop sensor outputs located meters away from the controller in factory-floor environments. IC Role / Device Role / Timing Role: ADC08832IN/NOPB acts as a local analog front-end, performing digitization at the sensor node and transmitting noise-immune serial data over twisted-pair wiring. Use Value: Eliminates analog signal degradation over long traces; its differential input rejects 60 Hz common-mode noise from nearby motor drives and power lines. |
Use Scenario: Sampling analog feedback signals (e.g., motor current, valve position) in PLC-based control cabinets with high EMI exposure. IC Role / Device Role / Timing Role: ADC08832IN/NOPB serves as a compact, dual-channel acquisition stage feeding real-time control algorithms in microcontroller-based I/O modules. Use Value: Its 153 ksps sampling rate supports closed-loop response times under 10 ms; single-supply operation simplifies power design in DIN-rail mounted systems. |
| Embedded Data Loggers | Portable Instrumentation |
|
Use Scenario: Battery-powered environmental monitors logging humidity, light, and CO₂ levels in field-deployed enclosures. IC Role / Device Role / Timing Role: ADC08832IN/NOPB provides low-quiescent-current analog acquisition, entering low-power mode between scheduled readings to extend battery life. Use Value: 3.0 mW typical standby power and no zero/full-scale calibration reduce firmware overhead and system-level power management complexity. |
Use Scenario: Handheld multimeters or portable oscilloscope probes requiring compact, self-contained analog signal conditioning. IC Role / Device Role / Timing Role: ADC08832IN/NOPB functions as the core digitizer, accepting inputs from precision op-amp front-ends and delivering calibrated 8-bit results via SPI-like interface. Use Value: ±1 LSB TUE and no missing codes ensure measurement repeatability across temperature; 8-pin SOIC fits tight PCB footprints. |
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 | Legacy 8-bit serial ADC with identical 2-channel MUX and VCC-referenced design; lacks MICROWIRE compliance and has higher TUE (±2 LSB) | Used in cost-sensitive legacy designs where timing margin allows slower conversion (32 μs) and relaxed accuracy is acceptable | Select only if backward compatibility with older schematics is required and 153 ksps sampling is unnecessary |
| ADS7822U | 8-bit SAR ADC with SPI interface, 200 ksps sampling, and external reference support; requires separate VREF and consumes 1.25 mW at 50 ksps | Suitable for higher-speed or ratiometric applications needing adjustable reference voltage and lower power at moderate throughput | Choose when system demands >153 ksps or precise absolute accuracy with stable external reference - not a drop-in replacement |
Compared with ADC0832CCN/NOPB, ADC08832IN/NOPB offers faster conversion, tighter error budget, and standardized serial timing; versus ADS7822U, it trades external reference flexibility and speed for reduced component count and simpler layout in VCC-referenced systems.
Availability
ADC08832IN/NOPB is available at Aetrix Electronics and suitable for remote sensor digitization, industrial process monitoring, and embedded data loggers requiring stable component supply, long-term manufacturability, and RoHS-compliant packaging.
Supply support for ADC08832IN/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 expertise in precision data converters and industrial-grade IC design.
The ADC08832IN/NOPB belongs to TI's legacy precision SAR ADC family, engineered for cost-effective, low-pin-count analog acquisition in space-constrained and noise-prone embedded systems.
FAQ
What is the reference voltage configuration of ADC08832IN/NOPB?
The ADC08832IN/NOPB uses an internal reference derived directly from the VCC supply - the VREF pin is omitted, and the reference voltage equals the applied supply voltage (4.5 V to 6.0 V). This eliminates external reference components and simplifies board layout, making ADC08832IN/NOPB ideal for ratiometric measurements where sensor output scales with system supply.
Does ADC08832IN/NOPB support differential input mode?
Yes, ADC08832IN/NOPB supports true differential input mode via software-configurable MUX addressing. Using the 2-bit address (SGL/DIF and ODD/SIGN), users can select IN0–IN1 or IN1–IN0 polarity pairs. This enables rejection of common-mode noise such as 60 Hz interference, and the ½-clock sampling interval ensures minimal error from common-mode drift during acquisition.
What is the maximum sampling rate achievable with ADC08832IN/NOPB?
The ADC08832IN/NOPB achieves a maximum sampling rate of 153 ksps when operated at its maximum clock frequency of 2 MHz. This value is calculated as fCLK/13 and represents the sustained throughput when CS remains asserted and conversions are back-to-back. Real-world rates may be lower depending on host processor overhead and MUX reconfiguration latency.
Can ADC08832IN/NOPB operate from a 3.3V supply?
No, ADC08832IN/NOPB is specified for 4.5 V to 6.0 V operation only. Its absolute maximum supply rating is 6.5 V, and the electrical characteristics - including input voltage range, logic thresholds, and conversion accuracy - are guaranteed only within the 4.5–6.0 V range. For 3.3 V systems, consider newer alternatives like ADS7822U or TLV2541.
How does the low-power mode function on ADC08832IN/NOPB?
When CS is held high, ADC08832IN/NOPB enters low-power mode: analog circuitry and digital logic enter static current states, and DO transitions to high-impedance. Supply current drops to ~1.3 mA (typ), reducing power dissipation to ~3.0 mW. However, the internal VCC-referenced ladder remains active, so reference-related current continues - unlike ADC08831, which allows full reference shutdown.
ADC08832IN/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):
- 250k
- Number of Inputs:
- 2
- Input Type:
- Differential, Pseudo-Differential, Single Ended
- Data Interface:
- SPI, DSP
- Configuration:
- MUX-S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 1
- Architecture:
- SAR
- Reference Type:
- Supply
- Voltage - Supply, Analog:
- 4.5V ~ 6V
- Voltage - Supply, Digital:
- 4.5V ~ 6V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 8-PDIP
- Mounting Type:
- Through Hole
- Grade:
- -
- Qualification:
- -
ADC08832IN/NOPB FAQ
1.How can I place an order for ADC08832IN/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for ADC08832IN/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 ADC08832IN/NOPB reliable?
The price and inventory of ADC08832IN/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADC08832IN/NOPB is usually 5 days.
3.What payment methods are accepted for ADC08832IN/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADC08832IN/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADC08832IN/NOPB?
ADC08832IN/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADC08832IN/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 ADC08832IN/NOPB?
For technical support, including ADC08832IN/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADC08832IN/NOPB requirements.
6.How does Aetrix verify that ADC08832IN/NOPB is sourced from the original manufacturer or authorized distributors?
All ADC08832IN/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 ADC08832IN/NOPB meets industry standards.
7.What is the process for return or replacement of ADC08832IN/NOPB?
All ADC08832IN/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with ADC08832IN/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 ADC08832IN/NOPB part is unused and in its original packaging.
Return procedure for ADC08832IN/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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