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Texas Instruments ADS8863IDRCT
- Part No.:
- ADS8863IDRCT
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
ADS8863IDRCT.pdf
- Description:
- IC ADC 16BIT SAR 10VSON
- Quantity:
- Payment:
- Shipping:
Inventory:1,311
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Product details
Overview
ADS8863IDRCT from Texas Instruments is a 16-bit, 680-kSPS, true-differential SAR analog-to-digital converter with SPI-compatible serial interface, 96 dB SNR, ±1.0 LSB INL (max), and 4.2 mW power dissipation at full speed - deployed in precision instrumentation, medical sensors, and battery-powered ATE systems requiring high DC accuracy and low latency.
For engineers reviewing the ADS8863IDRCT datasheet, ADS8863IDRCT pinout, ADS8863IDRCT application, or ADS8863IDRCT equivalent, this page delivers verified technical context, real-world timing behavior, differential input range mapping, package-specific thermal metrics, and validated alternative options for signal chain design continuity.
Technical Context
The ADS8863IDRCT implements a charge-redistribution SAR architecture with integrated sample-and-hold, enabling no-latency output and full-scale step settling in 540 ns. Its true-differential input accepts –VREF to +VREF differential swing with common-mode voltage adjustable from 0 V to VREF while maintaining ≥90 dB CMRR.
Digital interface supports three modes: 3-wire (CONVST as CS), 4-wire (DIN as CS), and daisy-chain - all synchronized to SCLK up to 32 MHz. Power consumption scales linearly with throughput: 60 µW at 10 kSPS, 0.6 mW at 100 kSPS, and 4.2 mW at 680 kSPS, with 50 nA power-down current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit with no missing codes (NMC) - guarantees monotonicity across full operating temperature range (–40°C to +85°C). |
| Sample Rate | 680 kSPS maximum throughput - enables sub-1.47 µs inter-conversion interval for high-speed sensor sampling. |
| SNR / THD | 96 dB SNR and –115 dB THD at 1 kHz - supports >14.5 ENOB for precision DC and low-frequency AC measurements. |
| INL / DNL | ±1.0 LSB max INL and ±1.0 LSB max DNL - ensures <0.0015% full-scale error for calibration-critical applications. |
| Analog Supply | AVDD = 2.7 V to 3.6 V - decoupled via 1-µF capacitor; independent of DVDD and REF, enabling flexible mixed-supply designs. |
| Reference Range | VREF = 2.5 V to 5 V - sets full-scale differential input span (–VREF to +VREF); reference current ≤160 µA at 680 kSPS. |
| Operating Temp | –40°C to +85°C - specified performance maintained across industrial temperature range without derating. |
Pinout & Package
ADS8863IDRCT is housed in a 10-pin SON (Small Outline No-Lead) package (DRC), featuring an exposed thermal pad connected to PCB ground for optimal thermal performance (θJCbot = 45.9°C/W). Pin count and layout match MSOP-10 (DGS) variant but differ in footprint and thermal characteristics.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| REF | Reference input | Accepts 2.5 V–5 V external reference; requires ≥10 µF decoupling capacitor to maintain linearity and noise performance. |
| AINP / AINN | True-differential analog inputs | Support –VREF to +VREF differential swing; common-mode voltage configurable from 0 V to VREF with ≥90 dB CMRR. |
| AVDD | Analog supply | 2.7 V–3.6 V rail; must be decoupled to GND with 1-µF capacitor to suppress switching noise coupling into analog path. |
| DVDD | Digital supply | 1.65 V–3.6 V independent rail; powers SPI interface and logic; decoupling with 1-µF capacitor required. |
| GND | Common analog/digital ground | Single-pin return for AVDD, DVDD, and REF; internal connection to reference return - mandates star grounding. |
| CONVST | Conversion start / chip select | Edge-triggered conversion initiator; functions as CS in 3-wire mode; minimum pulse width = 10 ns. |
| DIN | Serial data input | Configures interface mode (3-wire/4-wire/daisy-chain) at conversion start; serves as CS in 4-wire mode. |
| DOUT | Serial data output | MSB-first SPI-compatible output; tri-state controlled by CONVST or SCLK edge per selected interface mode. |
| SCLK | Serial clock input | Up to 32 MHz; falling edge clocks out data; timing parameters defined for acquisition (540 ns) and conversion (500–930 ns). |
Key Features
| Feature | Design Value |
|---|---|
| True-differential input structure | Enables direct connection of bridge sensors or differential transducers without level-shifting or gain stages - reduces BOM and layout complexity. |
| No-latency output | Delivers conversion result immediately after completion - eliminates pipeline delay for real-time control loops and trigger-based acquisition. |
| Scalable power consumption | Draws only 60 µW at 10 kSPS, enabling ultra-low-power operation in energy-constrained portable instruments and IoT edge nodes. |
| Daisy-chain capability | Allows cascading multiple ADS8863IDRCT devices on single SPI bus - simplifies multi-channel synchronization without additional GPIO or timing logic. |
| Wide common-mode range | Accepts VCM from 0 V to VREF while maintaining 90 dB CMRR - supports biased sensor outputs and floating sources without external bias networks. |
Applications
| High-Precision Medical ECG Monitoring | Battery-Powered Portable ATE |
|---|---|
Use Scenario: Digitizing low-amplitude, high-impedance biopotential signals from electrode arrays with minimal noise and drift. IC Role / Device Role / Timing Role: Primary 16-bit SAR ADC capturing differential lead voltages at 680 kSPS with no latency and 96 dB SNR. Use Value: Enables detection of microvolt-level ST-segment deviations without external amplification or filtering - reducing analog front-end component count by 30%. |
Use Scenario: Field-deployable test equipment performing rapid parametric measurements on semiconductor devices under varying temperature conditions. IC Role / Device Role / Timing Role: High-accuracy voltage/current digitizer interfacing directly to sensor bridges and shunt resistors via true-differential inputs. Use Value: Delivers ±1.0 LSB INL over –40°C to +85°C - eliminates need for per-unit calibration during production testing. |
| Industrial Process Control Loop | Low-Power Sensor Data Acquisition Node |
Use Scenario: Closed-loop feedback system monitoring pressure, flow, or temperature in hazardous environments using 4–20 mA or RTD interfaces. IC Role / Device Role / Timing Role: Precision ADC converting conditioned analog signals with 540 ns full-scale settling - enabling fast PID update rates. Use Value: Maintains 90 dB CMRR across 0–100 kHz frequency range - rejects common-mode noise from motor drives and switching power supplies. |
Use Scenario: Solar-powered environmental sensor node logging temperature, humidity, and gas concentration over multi-year deployments. IC Role / Device Role / Timing Role: Ultra-low-power ADC operating at 10 kSPS with 60 µW dissipation and automatic power-down between conversions. Use Value: Extends battery life beyond 10 years by scaling power linearly with sampling rate - no software-controlled sleep states required. |
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 |
|---|---|---|---|
| ADS8862IDRCT | Same 10-pin SON package, identical pinout, but rated for 500 kSPS (vs. 680 kSPS) and 95 dB SNR (vs. 96 dB). | Lower throughput and SNR margin - suitable where 500 kSPS suffices and cost sensitivity outweighs 10 dB SNR advantage. | Select when system sampling requirement ≤500 kSPS and budget constraints prioritize unit cost over dynamic range. |
| ADS8865IPWR | 16-bit, 400 kSPS, true-differential SAR ADC in TSSOP-16; supports same VREF range but lacks daisy-chain mode. | Larger footprint and no daisy-chain - limits channel density and increases board area in multi-ADC systems. | Choose only if existing layout uses TSSOP-16 or if higher pin count enables additional diagnostic I/O not needed in ADS8863IDRCT design. |
Compared with ADS8863IDRCT, ADS8862IDRCT trades 180 kSPS and 1 dB SNR for lower cost in identical packaging, while ADS8865IPWR sacrifices daisy-chain capability and miniaturization for legacy footprint compatibility - making ADS8863IDRCT optimal for space-constrained, high-throughput, multi-channel precision systems.
Availability
ADS8863IDRCT is available at Aetrix Electronics and suitable for precision medical instrumentation, industrial process control systems, and battery-operated automated test equipment requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for ADS8863IDRCT 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 signal chain solutions.
The ADS8863IDRCT belongs to TI's high-performance SAR ADC family designed for applications demanding 16-bit accuracy, low power, and true-differential input flexibility - targeting instrumentation, medical, and portable test equipment markets.
FAQ
What is the maximum sampling rate supported by the ADS8863IDRCT?
The ADS8863IDRCT supports a maximum throughput rate of 680 kSPS, with guaranteed timing performance including 540 ns acquisition time and 500–930 ns conversion time. This rate is fully characterized across the –40°C to +85°C temperature range and enables sub-1.47 µs inter-conversion intervals for high-speed sensor sampling in the ADS8863IDRCT.
Does the ADS8863IDRCT require an external reference voltage?
Yes, the ADS8863IDRCT requires an external reference voltage applied to the REF pin, supporting a range of 2.5 V to 5 V. The device draws up to 160 µA reference current during conversion at 680 kSPS and mandates a ≥10 µF decoupling capacitor at the REF pin to ensure stable linearity and noise performance in the ADS8863IDRCT.
Can the ADS8863IDRCT interface with standard SPI controllers?
Yes, the ADS8863IDRCT features an SPI-compatible serial interface supporting 3-wire, 4-wire, and daisy-chain configurations. It operates with SCLK up to 32 MHz, uses MSB-first data format, and provides tri-state DOUT control - enabling direct connection to microcontrollers, DSPs, and FPGAs without protocol translation in the ADS8863IDRCT.
What is the power consumption of the ADS8863IDRCT at different sampling rates?
Power consumption of the ADS8863IDRCT scales linearly with throughput: 4.2 mW at 680 kSPS, 0.6 mW at 100 kSPS, and 60 µW at 10 kSPS. Device automatically enters power-down state between conversions, achieving 50 nA quiescent current - making it ideal for duty-cycled, battery-powered applications using the ADS8863IDRCT.
How does the true-differential input of the ADS8863IDRCT improve noise rejection?
The ADS8863IDRCT achieves ≥90 dB common-mode rejection ratio (CMRR) across dc to 100 kHz by employing a dedicated common-mode voltage detection and rejection block. Unlike conventional SAR ADCs, it allows VCM to vary from 0 V to VREF without degrading performance - rejecting noise from shared grounds, motor drives, or switching supplies in the ADS8863IDRCT.
ADS8863IDRCT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- microPOWER™
- Package/Case:
- 10-VFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 16
- Sampling Rate (Per Second):
- 680k
- Number of Inputs:
- 1
- Input Type:
- Differential
- 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-VSON (3x3)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
ADS8863IDRCT FAQ
1.How can I place an order for ADS8863IDRCT through Aetrix?
Please submit a Request for Quotation (RFQ) for ADS8863IDRCT 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 ADS8863IDRCT reliable?
The price and inventory of ADS8863IDRCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADS8863IDRCT is usually 5 days.
3.What payment methods are accepted for ADS8863IDRCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADS8863IDRCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADS8863IDRCT?
ADS8863IDRCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADS8863IDRCT 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 ADS8863IDRCT?
For technical support, including ADS8863IDRCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADS8863IDRCT requirements.
6.How does Aetrix verify that ADS8863IDRCT is sourced from the original manufacturer or authorized distributors?
All ADS8863IDRCT 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 ADS8863IDRCT meets industry standards.
7.What is the process for return or replacement of ADS8863IDRCT?
All ADS8863IDRCT units undergo pre-shipment inspection (PSI). If there is an issue with ADS8863IDRCT, 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 ADS8863IDRCT part is unused and in its original packaging.
Return procedure for ADS8863IDRCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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