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Texas Instruments ADC08832IMX/NOPB
- Part No.:
- ADC08832IMX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
ADC08832IMX/NOPB.pdf
- Description:
- IC ADC 8BIT SAR 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,513
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Product details
Overview
ADC08832IMX/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 interface compliant with MICROWIRE standard. 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 and noise-immune serial output are critical.
For engineers reviewing the ADC08832IMX/NOPB datasheet, ADC08832IMX/NOPB pinout, ADC08832IMX/NOPB application, or ADC08832IMX/NOPB equivalent, key selection factors include its software-configurable single-ended/differential input modes, internal VREF tied to VCC, 8-pin SOIC/VSSOP package, and guaranteed no missing codes over −40°C to +85°C.
Technical Context
The ADC08832IMX/NOPB implements a successive-approximation register (SAR) architecture with a built-in sample-and-hold circuit and on-chip resistor ladder reference derived from VCC. Its analog front-end supports programmable input configurations via 2-bit MUX address shifted in on the DI line before conversion.
Conversion timing is tightly synchronized: after CS assertion and MUX addressing, a ½-clock settling interval precedes 8-bit MSB-first serial output on DO, with automatic TRI-STATE control of DO upon CS deassertion. The device enters low-power mode (3.0 mW typ.) when CS is high, though reference current continues flowing due to internal VREF–VCC tie.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 8 bits - delivers 256 discrete digital codes for full-scale analog input range |
| Sampling Rate | 153 ksps at fCLK = 2 MHz - enables real-time capture of signals up to ~76 kHz Nyquist bandwidth |
| Total Unadjusted Error | ±1 LSB max - ensures monotonic transfer function and no missing codes across temperature |
| Supply Voltage Range | 4.5 V to 6.0 V - compatible with standard 5V logic rails and tolerant of ±10% variation |
| Power Dissipation | 8.5 mW typ. active / 3.0 mW typ. low-power mode - suitable for battery-powered or thermally constrained systems |
| Analog Input Range | GND to VCC (with ±50 mV diode clamp margin) - supports rail-to-rail input without external level-shifting |
| Interface Standard | MICROWIRE-compatible 3-wire serial (CS, CLK, DI/DO) - interoperable with microcontrollers, PLDs, and DSPs |
Pinout & Package
ADC08832IMX/NOPB is housed in an 8-pin SOIC (D) or VSSOP (DGK) surface-mount package, both measuring 3.9 mm × 4.9 mm (SOIC) or 3.0 mm × 3.0 mm (VSSOP), with 1.27 mm pitch. Pin functions are validated per TI SNAS015C datasheet Figures 2 and 10.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Positive supply | Provides power and serves as internal voltage reference source (VREF = VCC) |
| GND | Ground reference | Common return for analog and digital circuits; must be connected to clean analog ground plane |
| DI | Serial data input | Accepts MUX address bits (SGL/DIF, ODD/SIGN) and start bit prior to conversion initiation |
| DO | Serial data output | Tri-state output delivering 8-bit MSB-first conversion result; disabled when CS is high |
| CLK | Serial clock input | Synchronizes MUX addressing and conversion timing; supports 10 kHz–2 MHz operation |
| CS | Chip select | Active-low enable; initiates conversion sequence and controls low-power mode entry/exit |
| IN0 | Analog input channel 0 | Configurable as positive or negative input in differential mode, or single-ended input |
| IN1 | Analog input channel 1 | Configurable as positive or negative input in differential mode, or single-ended input |
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 | Acquires analog signal during conversion without external S/H circuitry; supports dynamic input signals |
| No zero/full-scale adjustment | Factory-trimmed offset and gain eliminate calibration steps in production; reduces BOM and test time |
| TTL/CMOS-compatible I/O | Operates directly with 5V microcontrollers and logic families without level-shifting components |
| Rail-to-rail analog input | Accepts inputs from GND to VCC (±50 mV margin) - simplifies sensor interfacing in single-supply systems |
Applications
| Remote Sensor Digitization | Industrial Process Monitoring |
|---|---|
|
Use Scenario: Converting thermistor, RTD, or pressure transducer outputs located meters away from the controller in factory-floor environments. IC Role / Device Role / Timing Role: ADC08832IMX/NOPB acts as 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; differential input mode rejects 60 Hz common-mode noise from AC machinery. |
Use Scenario: Monitoring multiple analog process variables (e.g., flow, level, temperature) in PLC-based control cabinets. IC Role / Device Role / Timing Role: ADC08832IMX/NOPB serves as compact, low-pin-count A/D for dual-channel acquisition, reducing component count versus discrete solutions. Use Value: Software-selectable input configuration allows reuse of same PCB footprint for different sensor types (single-ended vs. differential bridge). |
| Embedded System Data Acquisition | Noise-Sensitive Instrumentation |
|
Use Scenario: Adding analog sensing capability to resource-constrained microcontroller-based devices such as smart meters or environmental loggers. IC Role / Device Role / Timing Role: ADC08832IMX/NOPB provides 8-bit resolution with minimal GPIO usage (3 pins), freeing MCU resources for communication and processing. Use Value: Low active power (8.5 mW) and automatic low-power mode extend battery life in portable instrumentation. |
Use Scenario: Digitizing low-amplitude signals from piezoelectric sensors or strain gauges in lab-grade test equipment. IC Role / Device Role / Timing Role: ADC08832IMX/NOPB operates in pseudo-differential mode to reject common-mode interference while preserving small-signal fidelity. Use Value: ±1 LSB TUE and no missing codes ensure accurate representation of subtle waveform features without interpolation artifacts. |
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 |
|---|---|---|---|
| ADC08831IMX/NOPB | Single-channel only; external VREF pin; no MUX addressing required | Used when only one analog input is needed and reference voltage must be independent of VCC | Select ADC08831IMX/NOPB if system requires flexible external reference and simpler interface timing |
| ADS7822U | 8-bit, 200 ksps, SPI interface, internal reference, 6-pin SOT-23 package | Higher speed and smaller footprint but lacks multiplexer and differential input flexibility | Choose ADS7822U for space-constrained designs needing faster sampling and no dual-input requirement |
Compared with ADC08832IMX/NOPB, ADC08831IMX/NOPB reduces interface complexity at the cost of channel count and configurability, while ADS7822U trades multiplexer functionality and differential support for higher throughput and miniaturization-making each suitable for distinct subsystem roles rather than drop-in replacement.
Availability
ADC08832IMX/NOPB is available at Aetrix Electronics and suitable for remote sensor digitization, industrial process monitoring, and embedded system data acquisition requiring stable component supply, long-lifecycle support, and consistent parametric performance.
Supply support for ADC08832IMX/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 experience in precision data converters and industrial-grade ICs.
The ADC08832IMX/NOPB belongs to TI's legacy 8-bit serial ADC family designed for cost-sensitive, noise-resilient embedded measurement applications where simplicity, reliability, and minimal board area are prioritized over ultra-high resolution or speed.
FAQ
What is the reference voltage configuration of ADC08832IMX/NOPB?
The ADC08832IMX/NOPB uses an internal reference derived directly from the VCC supply pin-no external reference connection is required or supported. This ratiometric configuration ensures that changes in VCC proportionally affect both the analog input full-scale range and the reference, maintaining code consistency in systems where sensor excitation and ADC reference share the same supply rail. The ADC08832IMX/NOPB datasheet confirms VREF is internally tied to VCC.
Does ADC08832IMX/NOPB support differential input mode?
Yes, ADC08832IMX/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, enabling rejection of common-mode noise such as 60 Hz interference. This capability is explicitly defined in Table 2 of the ADC08832IMX/NOPB datasheet and distinguishes it from the single-channel ADC08831IMX/NOPB.
What is the maximum clock frequency and corresponding conversion time for ADC08832IMX/NOPB?
The ADC08832IMX/NOPB supports a maximum clock frequency of 2 MHz, resulting in a maximum conversion time of 4 μs (excluding MUX addressing time). At this rate, the effective sampling rate is 153 ksps (fCLK/13), as confirmed in the Dynamic Characteristics section of the ADC08832IMX/NOPB datasheet. Clock frequencies below 10 kHz are not recommended per operating ratings.
How does ADC08832IMX/NOPB enter and exit low-power mode?
ADC08832IMX/NOPB automatically enters low-power mode (3.0 mW typical) when the CS pin is held high, disabling analog circuitry and placing the DO pin in TRI-STATE. Conversion resumes immediately upon CS falling edge. Unlike the ADC08831IMX/NOPB, the ADC08832IMX/NOPB continues drawing reference current from VCC in low-power mode due to its internal VREF–VCC tie, as documented in the "Reducing Power Consumption" section of the datasheet.
Is ADC08832IMX/NOPB pin-compatible with older industry-standard converters?
Yes, ADC08832IMX/NOPB is explicitly specified as a superior pin-compatible replacement for the ADC0832, sharing identical 8-pin SOIC/VSSOP pinout and functional mapping. This allows direct substitution in legacy designs without PCB modification, while delivering improved specifications including lower power consumption, enhanced noise immunity, and guaranteed no missing codes over temperature-details confirmed in the Features section of the ADC08832IMX/NOPB datasheet.
ADC08832IMX/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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-SOIC
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
ADC08832IMX/NOPB FAQ
1.How can I place an order for ADC08832IMX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for ADC08832IMX/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 ADC08832IMX/NOPB reliable?
The price and inventory of ADC08832IMX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADC08832IMX/NOPB is usually 5 days.
3.What payment methods are accepted for ADC08832IMX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADC08832IMX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADC08832IMX/NOPB?
ADC08832IMX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADC08832IMX/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 ADC08832IMX/NOPB?
For technical support, including ADC08832IMX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADC08832IMX/NOPB requirements.
6.How does Aetrix verify that ADC08832IMX/NOPB is sourced from the original manufacturer or authorized distributors?
All ADC08832IMX/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 ADC08832IMX/NOPB meets industry standards.
7.What is the process for return or replacement of ADC08832IMX/NOPB?
All ADC08832IMX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with ADC08832IMX/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 ADC08832IMX/NOPB part is unused and in its original packaging.
Return procedure for ADC08832IMX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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