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Texas Instruments ADC102S051CIMM/NOPB
- Part No.:
- ADC102S051CIMM/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
ADC102S051CIMM/NOPB.pdf
- Description:
- IC ADC 10BIT SAR 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:352
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Product details
Overview
ADC102S051CIMM/NOPB from Texas Instruments is a 10-bit, dual-channel successive-approximation ADC with serial SPI-compatible interface, 200–500 ksps sample rate range, ±0.13 LSB typical DNL, and operation from 2.7V to 5.25V supply. It performs simultaneous track-and-hold acquisition on IN1/IN2 and delivers straight-binary output for portable instrumentation and remote data acquisition systems.
For engineers reviewing the ADC102S051CIMM/NOPB datasheet, ADC102S051CIMM/NOPB pinout, ADC102S051CIMM/NOPB application, or ADC102S051CIMM/NOPB equivalent, key selection criteria include guaranteed performance across full 200–500 ksps range, channel-to-channel crosstalk of −87 dB, shutdown current as low as 30 nA at 3.6V, and VSSOP-8 package compatibility with space-constrained industrial sensor nodes.
Technical Context
The ADC102S051CIMM/NOPB uses a charge-redistribution DAC architecture with internal track-and-hold, enabling precise sampling during first three SCLK cycles after CS assertion. Its control logic manages multiplexer selection (IN1/IN2), conversion sequencing, and 16-cycle serial frame timing - all synchronized to external SCLK without dummy cycles or power-up delay.
It implements straight-binary coding with LSB = VA/1024, supports SPI/QSPI/MICROWIRE protocols via DIN/DOUT/SCLK/CS, and maintains functional integrity across −40°C to +85°C with no missing codes. Power management is controlled solely by CS: low = active mode (2.7 mW @ 3V), high = shutdown (0.12 µW @ 3V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 10-bit with no missing codes - ensures monotonic transfer function and deterministic code mapping across full input range. |
| Sample Rate Range | 200 ksps to 500 ksps - fully specified performance over entire range, eliminating need for derating at intermediate rates. |
| Differential Non-Linearity | ±0.13 LSB (typ) - guarantees <1 LSB step deviation, critical for precision measurement linearity. |
| Signal-to-Noise Ratio | 61.8 dB (typ) - corresponds to ~10.3 ENOB, suitable for 10-bit accuracy in low-noise signal chains. |
| Power Consumption | 2.7 mW @ 3V / 8.6 mW @ 5V (active); 0.12 µW @ 3V (shutdown) - enables battery-powered operation with rapid wake/sleep transitions. |
| Analog Input Range | 0 V to VA - ratiometric operation simplifies design when using same supply for reference and analog front-end. |
| Channel Crosstalk | −87 dB - isolates IN1 and IN2 signals, preserving integrity in dual-sensor monitoring applications. |
Pinout & Package
ADC102S051CIMM/NOPB is housed in an 8-lead VSSOP package (DGK0008A), 3.0 mm × 3.0 mm × 1.0 mm body, with exposed thermal pad (not electrically connected). Requires 1 µF + 0.1 µF bypass capacitors within 1 cm of VA pin.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - CS | Chip Select | Falling edge initiates conversion and serial frame; high state forces shutdown and tri-states DOUT. |
| 2 - VA | Analog Supply | +2.7V to +5.25V single supply; also serves as reference voltage - noise on VA directly impacts SNR. |
| 3 - GND | Analog Ground | Common return for analog and digital sections; must be low-impedance and separated from noisy digital ground. |
| 4 - IN2 | Analog Input Channel 2 | Accepts 0 V to VA differential input; selected via ADD[2:0] bits in control register. |
| 5 - IN1 | Analog Input Channel 1 | Default input on power-up; 0 V to VA range; shares same acquisition path as IN2. |
| 6 - DIN | Serial Data Input | Loads 8-bit control register on rising SCLK edges; configures next conversion's input channel (IN1/IN2). |
| 7 - DOUT | Serial Data Output | MSB-first straight-binary output; active only when CS is low; tri-stated when CS is high. |
| 8 - SCLK | Serial Clock | Drives conversion timing and data transfer; 50 kHz–16 MHz range; controls track/hold phase alignment. |
Key Features
| Feature | Design Value |
|---|---|
| Full-rate specification | Guaranteed DNL, INL, SNR, and THD across 200–500 ksps - eliminates interpolation uncertainty in variable-speed systems. |
| Low-power shutdown | 30 nA supply current at 3.6V - enables microamp-level system sleep modes without external power gating. |
| Ratiometric architecture | Input range = 0 to VA and LSB = VA/1024 - removes need for separate precision reference and simplifies supply rejection design. |
| Zero-latency startup | No power-up delay or dummy conversions - first sample after power-on is valid IN1 conversion, reducing firmware initialization overhead. |
| Industrial temperature range | −40°C to +85°C operation - qualified for embedded control, remote telemetry, and factory automation environments. |
Applications
| Portable Sensor Nodes | Industrial Process Monitoring |
|---|---|
|
Use Scenario: Battery-powered environmental sensor hub measuring temperature and humidity with dual analog outputs. IC Role / Device Role / Timing Role: Dual-channel ADC digitizes two independent sensor signals per frame, using CS-controlled burst sampling to minimize active time. Use Value: 0.12 µW shutdown power extends battery life to multi-year operation; 2.7 mW active power enables real-time logging without thermal throttling. |
Use Scenario: PLC analog input module acquiring pressure and flow signals from field transmitters. IC Role / Device Role / Timing Role: Simultaneous track-and-hold on IN1/IN2 captures correlated process variables with fixed 16-SCLK frame timing. Use Value: −87 dB channel crosstalk prevents cross-influence between pressure and flow readings; 200–500 ksps range supports adaptive oversampling for noise reduction. |
| Remote Data Acquisition | Test & Measurement Front-End |
|
Use Scenario: Solar-powered weather station transmitting sensor data via LoRaWAN every 10 minutes. IC Role / Device Role / Timing Role: ADC powers up on timer interrupt, samples both channels once, then returns to shutdown - minimizing energy per measurement. Use Value: No missing codes and ±0.13 LSB DNL ensure consistent quantization error across temperature extremes; VSSOP-8 footprint fits compact PCB layouts. |
Use Scenario: Handheld multimeter with dual-input capability for differential voltage and current sensing. IC Role / Device Role / Timing Role: Configurable channel selection (IN1/IN2) via DIN allows user-switched input routing without hardware change. Use Value: 61.8 dB SNR supports >10-bit effective resolution; SPI interface enables direct connection to low-cost MCU without level-shifting. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADC102S021CIMM/NOPB | Same pinout and interface, but rated for 50–200 ksps only; lower max sample rate and slightly higher DNL (±0.3 LSB typ). | Lower throughput suits slower sensors (e.g., thermistors), but cannot replace ADC102S051CIMM/NOPB in 300+ ksps systems. | Select when cost sensitivity outweighs speed requirement and full 500 ksps capability is unnecessary. |
| ADC102S101CIMM/NOPB | Same pinout and interface, rated for 500 ksps–1 Msps; higher max clock (20 MHz), improved THD (−88 dB), and tighter INL (±0.08 LSB typ). | Supports higher-frequency inputs (e.g., ultrasonic sensing) and offers better dynamic performance at top end of range. | Choose when future-proofing for >500 ksps or requiring enhanced SFDR (87 dB vs. 84 dB) is critical. |
Compared with ADC102S021CIMM/NOPB, the ADC102S051CIMM/NOPB delivers 2.5× higher maximum sample rate with superior linearity; compared with ADC102S101CIMM/NOPB, it trades minor dynamic performance for proven stability at mid-range speeds and broader legacy design support.
Availability
ADC102S051CIMM/NOPB is available at Aetrix Electronics and suitable for portable systems, remote data acquisition, and instrumentation and control systems requiring stable component supply, long-term lifecycle assurance, and industrial-grade temperature compliance.
Supply support for ADC102S051CIMM/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 focused on analog, embedded processing, and connectivity technologies, with decades of expertise in precision data converters and industrial signal chain solutions.
The ADC102S051CIMM/NOPB belongs to TI's precision SAR ADC family designed for low-power, dual-channel, serial-interface applications in portable instrumentation, sensor interfaces, and distributed control systems.
FAQ
What is the minimum and maximum sample rate supported by the ADC102S051CIMM/NOPB?
The ADC102S051CIMM/NOPB is fully specified from 200 ksps to 500 ksps - not just operational, but with guaranteed DNL, INL, SNR, and THD across this entire range. Below 200 ksps, performance may degrade beyond datasheet limits; above 500 ksps, timing margins become non-compliant. This range is enforced by internal SCLK constraints (3.2–8 MHz) and conversion timing (16 SCLK cycles per frame).
Does the ADC102S051CIMM/NOPB require an external reference voltage?
No, the ADC102S051CIMM/NOPB uses its VA supply pin as the reference - it is ratiometric with LSB = VA/1024. An external reference is neither required nor supported; adding one would violate the specified analog input range (0 V to VA) and compromise accuracy. Clean, well-bypassed VA is essential for optimal SNR.
How does channel selection work on the ADC102S051CIMM/NOPB?
Channel selection is controlled via the 3-bit ADD[2:0] field in the 8-bit control register loaded on DIN. Only two valid combinations exist: ADD[2:0] = x00 selects IN1 (default on power-up), and x01 selects IN2. ADD[2:0] = x1x is undefined and produces indeterminate DOUT - the device must be configured correctly before each conversion to avoid invalid output.
What is the power-down behavior of the ADC102S051CIMM/NOPB when CS is high?
When CS is high, the ADC102S051CIMM/NOPB enters full shutdown: internal clock is gated, analog circuitry is disabled, and DOUT goes to high-impedance. Supply current drops to 30 nA at 3.6V or 90 nA at 5.25V. No configuration retention occurs - the next CS falling edge initiates a new frame starting with IN1 unless reconfigured via DIN.
Is the ADC102S051CIMM/NOPB pin-compatible with other devices in the ADC102Sxx family?
Yes - the ADC102S051CIMM/NOPB is fully pin- and function-compatible with ADC102S021CIMM/NOPB and ADC102S101CIMM/NOPB per Table 1 in the datasheet. All share identical VSSOP-8 pinout, signal definitions, timing structure, and control register format, enabling drop-in replacement within their respective sample rate ranges.
ADC102S051CIMM/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:
- Active
- Number of Bits:
- 10
- Sampling Rate (Per Second):
- 500k
- Number of Inputs:
- 2
- Input Type:
- 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:
- 2.7V ~ 5.25V
- Voltage - Supply, Digital:
- 2.7V ~ 5.25V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 8-VSSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
ADC102S051CIMM/NOPB FAQ
1.How can I place an order for ADC102S051CIMM/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for ADC102S051CIMM/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 ADC102S051CIMM/NOPB reliable?
The price and inventory of ADC102S051CIMM/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADC102S051CIMM/NOPB is usually 5 days.
3.What payment methods are accepted for ADC102S051CIMM/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADC102S051CIMM/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADC102S051CIMM/NOPB?
ADC102S051CIMM/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADC102S051CIMM/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 ADC102S051CIMM/NOPB?
For technical support, including ADC102S051CIMM/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADC102S051CIMM/NOPB requirements.
6.How does Aetrix verify that ADC102S051CIMM/NOPB is sourced from the original manufacturer or authorized distributors?
All ADC102S051CIMM/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 ADC102S051CIMM/NOPB meets industry standards.
7.What is the process for return or replacement of ADC102S051CIMM/NOPB?
All ADC102S051CIMM/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with ADC102S051CIMM/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 ADC102S051CIMM/NOPB part is unused and in its original packaging.
Return procedure for ADC102S051CIMM/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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