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Texas Instruments ADC08832IMMX/NOPB
- Part No.:
- ADC08832IMMX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
ADC08832IMMX/NOPB.pdf
- Description:
- IC ADC 8BIT SAR 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,115
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Product details
Overview
ADC08832IMMX/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, achieves 4μs max conversion time at 2MHz clock, and delivers ±1LSB total unadjusted error across −40°C to +85°C. It is used in remote sensor digitization where low pin count and noise-immune serial output are critical.
For engineers reviewing the ADC08832IMMX/NOPB datasheet, ADC08832IMMX/NOPB pinout, ADC08832IMMX/NOPB application, or ADC08832IMMX/NOPB equivalent, key selection criteria include its fixed VREF = VCC architecture, software-configurable single-ended/differential input modes, tri-state output timing, and SOIC/VSSOP-8 package compatibility with space-constrained embedded data acquisition systems.
Technical Context
The ADC08832IMMX/NOPB implements a successive-approximation register (SAR) core with internal ratioed capacitor array and resistor ladder for bit-weighting. Its analog front-end includes a built-in sample-and-hold that acquires voltage difference between programmable "+" and "−" inputs during a ½-clock settling interval after MUX address latching.
Digital control uses a 3-wire serial protocol: CS initiates conversion, DI shifts in a 3-bit MUX address (start bit + SGL/DIF + ODD/SIGN), and DO outputs MSB-first conversion result followed by LSB-first redundant stream. Reference is internally tied to VCC, eliminating external reference routing but fixing full-scale range to VCC − GND.
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 max at fCLK = 2 MHz - enables up to 153 ksps sampling rate (fCLK/13) |
| Total Unadjusted Error | ±1 LSB - guarantees monotonicity and no missing codes across temperature |
| Supply Voltage Range | 4.5 V to 6.0 V - supports industrial 5V rail with ±10% tolerance |
| Power Dissipation | 8.5 mW typical active, 3.0 mW typical low-power mode - reduces thermal load in battery or thermally constrained designs |
| Analog Input Range | GND to VCC - allows direct interfacing with ground-referenced sensors without level-shifting |
| Input Configuration | Software-selectable single-ended or differential (with polarity reversal) - enables flexible transducer signal conditioning in one device |
Pinout & Package
ADC08832IMMX/NOPB is housed in an 8-pin VSSOP (DGK) package - ultra-thin, surface-mount, 3.0 mm × 3.0 mm footprint with 0.65 mm pitch - optimized for high-density PCB layouts in portable instrumentation and sensor nodes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable: must remain low throughout conversion; controls entry into low-power mode when high |
| CLK | Serial Clock Input | Synchronizes MUX address shift-in and conversion result shift-out; supports 10 kHz–2 MHz operation |
| DI | Data Input | Accepts 3-bit MUX address (start bit + SGL/DIF + ODD/SIGN); ignored after address latch |
| DO | Data Output | Tri-state, MSB-first serial output of 8-bit result; transitions to high-impedance when CS is high |
| VCC | Positive Supply | Single 4.5–6.0 V supply; also serves as internal reference voltage source |
| GND | Ground Reference | Analog and digital common return; requires low-impedance connection to minimize noise coupling |
| IN0 | Analog Input Channel 0 | Selectable as "+" or "−" in differential mode; usable as single-ended input referenced to GND |
| IN1 | Analog Input Channel 1 | Selectable as "+" or "−" in differential mode; enables pseudo-differential or true differential measurement |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Track/Hold | Acquires analog input during conversion without external circuitry - eliminates hold capacitor sizing and op-amp stability concerns |
| Configurable 2-Channel MUX | Software-defined input topology (single-ended, differential, or pseudo-differential) - reduces BOM count in multi-sensor systems |
| MICROWIRE-Compatible Serial I/O | 3-wire interface (CS/CLK/DI/DO) with tri-state DO - simplifies isolation and minimizes PCB trace count vs parallel ADCs |
| No Zero/Full-Scale Adjustment | Factory-trimmed offset and gain - eliminates calibration steps in production test and field deployment |
| TTL/CMOS Logic Compatibility | VIH ≥ 2.0 V, VIL ≤ 0.8 V - ensures interoperability with standard microcontrollers and FPGAs without level translation |
Applications
| Remote Sensor Digitization | Industrial Process Monitoring |
|---|---|
Use Scenario: Converting thermistor, RTD, or pressure transducer outputs in distributed field nodes with long analog traces. IC Role / Device Role / Timing Role: ADC08832IMMX/NOPB acts as local analog front-end, performing track/hold and digitization adjacent to sensor to reject EMI before serial transmission. Use Value: Eliminates analog signal degradation over cable runs; 2-channel MUX supports dual-sensor polling without external switches. |
Use Scenario: Monitoring temperature, flow, and level signals in PLC I/O modules operating in electrically noisy factory environments. IC Role / Device Role / Timing Role: ADC08832IMMX/NOPB provides isolated, noise-immune digitization via serial interface while supporting differential mode for common-mode rejection of 50/60 Hz interference. Use Value: ±1 LSB TUE and no missing codes ensure reliable alarm triggering and closed-loop control accuracy across temperature extremes. |
| Embedded Data Loggers | Low-Power Portable Instrumentation |
Use Scenario: Battery-powered environmental monitors capturing voltage outputs from gas sensors, light meters, or humidity ICs. IC Role / Device Role / Timing Role: ADC08832IMMX/NOPB enters 3.0 mW low-power mode between conversions, synchronized to microcontroller wake-up intervals. Use Value: Reduces average system power versus always-on ADCs; VSSOP-8 package enables compact PCB area for multi-channel logging. |
Use Scenario: Handheld multimeters or portable oscilloscope front-ends requiring minimal component count and layout area. IC Role / Device Role / Timing Role: ADC08832IMMX/NOPB serves as primary digitizer with on-chip MUX enabling auto-ranging or dual-input comparison without external relays. Use Value: Single-supply 5V operation and GND-to-VCC input range simplify power architecture; 4 μs conversion supports real-time display updates. |
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 pinout and 2-channel MUX, but lacks track/hold and has higher 12 μs conversion time | Lower sampling rate limits use in dynamic waveform capture; requires external sample/hold for accurate AC signal digitization | Select only if legacy replacement is required and system clock budget permits slower conversion |
| MCP3002-I/P | 10-bit resolution, SPI-compatible interface, separate VREF pin, and 2.7–5.5 V supply range - no internal VREF tie to VCC | Enables ratiometric or precision absolute measurements; wider supply range supports 3.3 V microcontrollers directly | Choose when higher resolution or flexible reference architecture outweighs cost and footprint increase over ADC08832IMMX/NOPB |
Compared with ADC08832IMMX/NOPB, ADC0832CCN/NOPB offers pin compatibility but sacrifices speed and track/hold capability, while MCP3002-I/P trades simplicity and 5V-native operation for greater resolution and reference flexibility - making ADC08832IMMX/NOPB optimal for cost-sensitive, 5V, noise-immune embedded sensing where 8-bit resolution suffices.
Availability
ADC08832IMMX/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 lifecycle support, and RoHS-compliant packaging.
Supply support for ADC08832IMMX/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 over 90 years of innovation in precision data conversion and industrial-grade IC design.
The ADC08832IMMX/NOPB belongs to TI's legacy precision SAR ADC family, engineered for low-cost, low-pin-count embedded data acquisition in harsh electrical environments - emphasizing noise immunity, single-supply operation, and minimal external component requirements.
FAQ
What is the maximum clock frequency supported by ADC08832IMMX/NOPB?
The ADC08832IMMX/NOPB supports a clock frequency range of 10 kHz to 2 MHz. At the maximum 2 MHz clock, it achieves a 4 μs conversion time and 153 ksps sampling rate. Operation above 2 MHz is not guaranteed and may cause timing violations or incorrect code generation due to internal comparator settling constraints.
Does ADC08832IMMX/NOPB require an external voltage reference?
No. The ADC08832IMMX/NOPB internally ties its reference input to VCC, so no external reference is needed. This makes it ideal for ratiometric applications where analog input scales with supply voltage. For absolute accuracy, a stable 5V supply is required - deviations directly affect full-scale range and measurement linearity.
How does the ADC08832IMMX/NOPB handle differential input configurations?
The ADC08832IMMX/NOPB supports differential mode via software-configurable MUX addressing: IN0 can be assigned as "+" and IN1 as "−", or vice versa. The analog input voltage converted is always the difference (IN+ − IN−). If IN+ < IN−, the output is all zeros. This enables true differential measurement with common-mode rejection for noise-prone signals.
What package type is used for ADC08832IMMX/NOPB?
The ADC08832IMMX/NOPB is supplied in an 8-pin VSSOP (DGK) package - a 3.0 mm × 3.0 mm surface-mount outline with 0.65 mm lead pitch. This ultra-compact, leaded package provides thermal and electrical performance comparable to SOIC-8 while reducing PCB area by ~50%, ideal for space-constrained sensor nodes and portable instruments.
Can ADC08832IMMX/NOPB operate from a 3.3V supply?
No. The ADC08832IMMX/NOPB specifies a minimum supply voltage of 4.5 V and maximum of 6.0 V. Operation at 3.3 V falls outside its Absolute Maximum Ratings and Operating Ratings. Attempting 3.3 V operation will result in undefined behavior, failed conversions, or permanent damage due to insufficient headroom for internal logic and reference ladder biasing.
ADC08832IMMX/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- 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-VSSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
ADC08832IMMX/NOPB FAQ
1.How can I place an order for ADC08832IMMX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for ADC08832IMMX/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 ADC08832IMMX/NOPB reliable?
The price and inventory of ADC08832IMMX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADC08832IMMX/NOPB is usually 5 days.
3.What payment methods are accepted for ADC08832IMMX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADC08832IMMX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADC08832IMMX/NOPB?
ADC08832IMMX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADC08832IMMX/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 ADC08832IMMX/NOPB?
For technical support, including ADC08832IMMX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADC08832IMMX/NOPB requirements.
6.How does Aetrix verify that ADC08832IMMX/NOPB is sourced from the original manufacturer or authorized distributors?
All ADC08832IMMX/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 ADC08832IMMX/NOPB meets industry standards.
7.What is the process for return or replacement of ADC08832IMMX/NOPB?
All ADC08832IMMX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with ADC08832IMMX/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 ADC08832IMMX/NOPB part is unused and in its original packaging.
Return procedure for ADC08832IMMX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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