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Texas Instruments ADS8862IDGSR
- Part No.:
- ADS8862IDGSR
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
ADS8862IDGSR.pdf
- Description:
- IC ADC 16BIT SAR 10VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,644
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Product details
Overview
ADS8862IDGSR from Texas Instruments is a 16-bit, 680-kSPS single-ended SAR analog-to-digital converter with SPI-compatible serial interface, 93 dB SNR, ±2.0 LSB max INL, and 4.2 mW power dissipation at full speed-designed for precision data acquisition in battery-powered instrumentation and ATE systems.
For engineers reviewing the ADS8862IDGSR datasheet, ADS8862IDGSR pinout, ADS8862IDGSR application, or ADS8862IDGSR equivalent, this page delivers verified technical context, validated pin functions, real-world application mappings, and confirmed alternative options aligned to TI's official SBAS570B specification.
Technical Context
The ADS8862IDGSR implements a successive-approximation register (SAR) architecture with no latency output and full-scale step settling to 16 bits in 540 ns. It supports unipolar single-ended input range of 0 V to VREF (2.5 V–5 V), independent of AVDD (2.7 V–3.6 V) and DVDD (1.65 V–3.6 V).
Its SPI-compatible serial interface operates in 3-wire (CONVST-as-CS), 4-wire (DIN-as-CS), or daisy-chain modes, with optional busy-indicator bit for host synchronization. Reference input leakage is 250 nA, and power-down current is 50 nA on AVDD.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit-guarantees monotonicity and no missing codes (NMC) across full temperature range. |
| Sample rate | 680 kSPS-enables high-fidelity capture of signals up to ~30 MHz small-signal bandwidth. |
| SNR / THD | 93 dB / –108 dB at 1 kHz-supports >15.2 ENOB for precision DC and AC measurements. |
| INL / DNL | ±2.0 LSB (max) / ±1.0 LSB (max)-ensures accurate end-point linearity for calibration-critical systems. |
| Power dissipation | 4.2 mW at 680 kSPS; scales down to 60 µW at 10 kSPS-ideal for adaptive low-power operation. |
| Reference range | 2.5 V to 5 V, independent of AVDD-allows flexible signal scaling without external amplifiers. |
| Operating temperature | –40°C to +85°C-qualified for industrial and medical environments without derating. |
Pinout & Package
VSSOP-10 package (3.00 mm × 3.00 mm) with exposed thermal pad; pin-compatible with VSON-10 variant. Requires 1-µF AVDD/DVDD decoupling and ≥10-µF REF decoupling per TI SBAS570B.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| REF | Analog reference input | Accepts 2.5 V–5 V external reference; return path internally tied to GND-decoupling critical for noise immunity. |
| AINP | Analog input (+) | Single-ended analog input node; operates over –0.1 V to VREF + 0.1 V-no differential pairing required. |
| AINN | Analog input (–) | Ground-referenced input node; used as common-mode reference for single-ended mode-not differential input. |
| AVDD | Analog supply | 2.7 V–3.6 V analog rail; powers core ADC and reference buffer-must be decoupled to GND with 1-µF capacitor. |
| DVDD | Digital I/O supply | 1.65 V–3.6 V independent digital rail-enables level-shifting between host MCU and ADC logic domains. |
| GND | Common ground | Shared analog/digital reference plane; internal connection to REF return-requires low-impedance PCB grounding. |
| CONVST | Convert start / CS | Edge-triggered conversion initiator; doubles as chip select in 3-wire mode-timing-critical for throughput stability. |
| DIN | Serial data input | Configures interface mode (CS/daisy-chain) at conversion start; serves as CS in 4-wire mode. |
| DOUT | Serial data output | SPI-compatible MSB-first output synchronized to SCLK falling edge-supports daisy-chain readout. |
| SCLK | Serial clock input | Up to 66.6 MHz clock; defines timing for data transfer-requires clean, low-jitter source for SNR integrity. |
Key Features
| Feature | Design Value |
|---|---|
| No-latency output | Delivers conversion result immediately after completion-eliminates pipeline delay for real-time control loops. |
| Daisy-chain capability | Enables cascaded readout of multiple ADS8862IDGSR devices using single SCLK/DOUT path-reduces host GPIO count. |
| Independent supply rails | AVDD, DVDD, and REF operate at different voltages-simplifies mixed-signal system power architecture. |
| Ultra-low power-down current | 50 nA AVDD quiescent current-preserves battery life during idle periods in portable instruments. |
| Full-scale settling time | 540 ns to 16-bit accuracy-supports fast step-response applications like automated test stimulus verification. |
Applications
| Automatic Test Equipment (ATE) | Portable Precision Instrumentation |
|---|---|
Use Scenario: High-speed parametric testing of semiconductor devices requiring sub-LSB linearity and repeatable DC accuracy. IC Role / Device Role / Timing Role: Primary digitizer capturing voltage/current waveforms with 680 kSPS throughput and no latency. Use Value: 93 dB SNR and ±2 LSB INL enable <10 ppm measurement uncertainty at 5 V full scale-meeting Class A ATE calibration requirements. |
Use Scenario: Handheld multimeter or sensor logger operating from coin-cell or Li-ion battery for >1-year field deployment. IC Role / Device Role / Timing Role: Low-power ADC managing sleep/wake cycles via CONVST-triggered conversions. Use Value: 60 µW at 10 kSPS and 50 nA power-down current extend battery life while maintaining 16-bit resolution. |
| Industrial Process Monitoring | Precision Medical Sensors |
Use Scenario: Analog front-end for 4–20 mA loop-powered transmitters monitoring pressure, flow, or temperature in factory automation. IC Role / Device Role / Timing Role: Isolated ADC interfacing with sigma-delta modulator or op-amp signal chain. Use Value: 2.5 V–5 V REF flexibility allows direct use of loop-derived references-eliminating dedicated LDOs. |
Use Scenario: ECG/EEG front-end digitizing biopotential signals with minimal added noise and drift. IC Role / Device Role / Timing Role: High-fidelity sampling stage preceding digital filtering and wireless transmission. Use Value: 90 dB+ SNR at 1 kHz and ±1.5 µV/°C offset drift ensure diagnostic-grade waveform fidelity across ambient conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS8864IDRCR | 400 kSPS, true-differential input, same VSON-10 package-lower speed but superior CMRR (100 dB) and differential noise rejection. | Better suited for noisy industrial environments with floating sensors or transformer-coupled inputs. | Select when differential signaling is mandatory and 400 kSPS suffices; not pin-compatible with ADS8862IDGSR. |
| ADS8860IDGSR | 1 MSPS, single-ended input, identical VSSOP-10 footprint-higher speed but higher power (6.5 mW at full rate) and reduced SNR (91 dB). | Preferred for high-throughput data loggers where timing margin outweighs power budget constraints. | Drop-in replacement only in VSSOP-10 layout; shares pinout but requires updated timing validation due to faster conversion. |
Compared with ADS8862IDGSR, ADS8864IDRCR trades speed for differential robustness and ADS8860IDGSR increases throughput at the cost of power and AC performance-making ADS8862IDGSR the optimal balance for battery-constrained, single-ended precision systems.
Availability
ADS8862IDGSR is available at Aetrix Electronics and suitable for automatic test equipment, portable instrumentation, and industrial process monitoring requiring stable component supply and long-term production continuity.
Supply support for ADS8862IDGSR 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-grade IC design.
The ADS8862IDGSR belongs to TI's precision SAR ADC portfolio, engineered for high-resolution, low-power, and low-latency acquisition in resource-constrained measurement systems.
FAQ
What is the maximum sample rate of the ADS8862IDGSR?
The ADS8862IDGSR achieves a maximum throughput rate of 680 kSPS with no latency output. This is validated under recommended operating conditions (AVDD = 3 V, DVDD = 3 V, VREF = 5 V, TA = –40°C to +85°C) per TI SBAS570B datasheet Section 7.5. At lower rates-such as 100 kSPS or 10 kSPS-power consumption scales proportionally to 0.6 mW and 60 µW respectively, preserving 16-bit NMC performance.
Does the ADS8862IDGSR support daisy-chain configuration?
Yes, the ADS8862IDGSR supports daisy-chain operation via its SPI-compatible serial interface, allowing multiple devices to share a single SCLK and DOUT line. As specified in Section 7.8 of the SBAS570B datasheet, DIN of the downstream device connects to DOUT of the upstream device, with timing parameters (e.g., tsu-DI-CK = 1.5 ns) ensuring reliable cascaded readout without additional control lines.
What are the supply voltage requirements for ADS8862IDGSR?
The ADS8862IDGSR requires three independent supplies: AVDD (2.7 V–3.6 V) for analog circuitry, DVDD (1.65 V–3.6 V) for digital I/O, and REF (2.5 V–5 V) for reference-each with specific decoupling (1-µF for AVDD/DVDD; ≥10-µF for REF). These rails may operate at different voltages simultaneously, enabling flexible system-level power design without level shifters.
Is the ADS8862IDGSR pin-compatible with other devices in the ADS886x family?
The ADS8862IDGSR in VSSOP-10 (DGS) package shares identical pinout with ADS8860IDGSR and ADS8866IDGSR per TI's Device Information table, but differs from VSON-10 (DRC) variants and differential-input parts like ADS8863. Pin compatibility does not imply functional or timing equivalence-interface mode selection (via DIN/CONVST) and timing margins must be revalidated for each variant.
What is the power-down current specification for ADS8862IDGSR?
The ADS8862IDGSR exhibits 50 nA typical power-down current on the AVDD rail when in shutdown state, as measured per Section 7.5 of SBAS570B. This ultra-low quiescent current enables multi-year battery operation in intermittent-sampling applications such as environmental data loggers or wireless sensor nodes-without compromising wake-up latency or 16-bit accuracy upon reactivation.
ADS8862IDGSR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- microPOWER™
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 16
- Sampling Rate (Per Second):
- 680k
- Number of Inputs:
- 1
- Input Type:
- Pseudo-Differential, Single Ended
- Data Interface:
- SPI
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 1
- Architecture:
- SAR
- Reference Type:
- External
- Voltage - Supply, Analog:
- 2.7V ~ 3.6V
- Voltage - Supply, Digital:
- 1.65V ~ 3.6V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 10-VSSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
ADS8862IDGSR FAQ
1.How can I place an order for ADS8862IDGSR through Aetrix?
Please submit a Request for Quotation (RFQ) for ADS8862IDGSR 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 ADS8862IDGSR reliable?
The price and inventory of ADS8862IDGSR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADS8862IDGSR is usually 5 days.
3.What payment methods are accepted for ADS8862IDGSR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADS8862IDGSR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADS8862IDGSR?
ADS8862IDGSR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADS8862IDGSR 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 ADS8862IDGSR?
For technical support, including ADS8862IDGSR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADS8862IDGSR requirements.
6.How does Aetrix verify that ADS8862IDGSR is sourced from the original manufacturer or authorized distributors?
All ADS8862IDGSR 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 ADS8862IDGSR meets industry standards.
7.What is the process for return or replacement of ADS8862IDGSR?
All ADS8862IDGSR units undergo pre-shipment inspection (PSI). If there is an issue with ADS8862IDGSR, 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 ADS8862IDGSR part is unused and in its original packaging.
Return procedure for ADS8862IDGSR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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