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Texas Instruments ADS8860IDRCT
- Part No.:
- ADS8860IDRCT
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
ADS8860IDRCT.pdf
- Description:
- IC ADC 16BIT SAR 10VSON
- Quantity:
- Payment:
- Shipping:
Inventory:405
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Product details
Overview
ADS8860IDRCT from Texas Instruments is a 16-bit, 1-MSPS single-ended SAR analog-to-digital converter with SPI-compatible serial interface, unipolar input range (0 V to VREF), 93 dB SNR, and 5.5 mW power dissipation at full speed - used in precision instrumentation, medical sensors, and battery-powered test equipment.
For engineers reviewing the ADS8860IDRCT datasheet, ADS8860IDRCT pinout, ADS8860IDRCT application, or ADS8860IDRCT equivalent, this page delivers verified technical context, real-world timing behavior, confirmed package mapping (VSON-10), and validated alternative options for low-power, high-accuracy data acquisition systems.
Technical Context
The ADS8860IDRCT implements a successive approximation register (SAR) architecture with no pipeline latency, enabling deterministic 500–710 ns conversion time and full-scale step settling in 290 ns. Its reference voltage (2.5 V to 5 V) operates independently of AVDD (2.7 V to 3.6 V) and DVDD (1.65 V to 3.6 V), supporting flexible signal scaling without external amplification.
It supports three serial interface modes - 3-wire (CONVST as CS), 4-wire (DIN as CS), and daisy-chain - all synchronized to SCLK up to 66.6 MHz. An optional busy-indicator bit simplifies host synchronization, and internal power-down reduces AVDD current to 50 nA between conversions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - delivers 15.26 ppm quantization granularity for high-fidelity sensor and metrology applications. |
| Sample rate | 1 MSPS - enables real-time capture of signals up to 30 MHz small-signal bandwidth with 93 dB SNR at 1 kHz. |
| INL / DNL | ±2.0 LSB max / ±1.0 LSB max - ensures monotonicity and <0.003% end-point linearity error across temperature. |
| Power @ 1 MSPS | 5.5 mW - scales linearly down to 55 µW at 10 kSPS, optimizing energy use in duty-cycled portable instruments. |
| Reference range | 2.5 V to 5 V - allows direct interfacing to common reference sources without level-shifting circuitry. |
| Operating temp. | –40°C to +85°C - qualified for industrial and medical environments with guaranteed performance over full range. |
| Supply independence | AVDD, DVDD, and REF operate on separate rails - eliminates supply coupling and simplifies mixed-domain PCB layout. |
Pinout & Package
VSON-10 (DRC) package: 3.00 mm × 3.00 mm, exposed thermal pad (to be connected to PCB ground), rated for 111.1°C/W junction-to-ambient thermal resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| REF | Analog reference input | Accepts 2.5 V–5 V external reference; requires ≥10 µF decoupling capacitor for noise immunity and stability. |
| AINP | Analog input (+) | Single-ended input node; supports 0 V to VREF range with –0.1 V to VREF + 0.1 V operating margin. |
| AINN | Analog input (–) | Ground-referenced return path; internally tied to GND - not differential input but required for acquisition integrity. |
| AVDD | Analog supply | 2.7 V–3.6 V rail; must be decoupled to GND with 1 µF capacitor to maintain AC performance. |
| DVDD | Digital I/O supply | 1.65 V–3.6 V independent rail; supports CMOS logic levels and enables low-voltage host interfacing. |
| GND | Common analog/digital ground | Shared return for AVDD, DVDD, and REF; critical for minimizing PSRR degradation and offset drift. |
| CONVST | Convert start / chip select | Edge-triggered conversion initiator; doubles as CS in 3-wire mode - eliminates need for separate enable control. |
| SCLK | Serial clock input | Up to 66.6 MHz; controls data transfer timing and supports daisy-chain cascading of multiple ADS8860 devices. |
| DIN | Serial data input | Mode-select input at conversion start; serves as CS in 4-wire operation - enables flexible host interface configuration. |
| DOUT | Serial data output | MSB-first, SPI-compatible output; provides 16-bit result with optional busy bit for precise host synchronization. |
Key Features
| Feature | Design Value |
|---|---|
| No-latency output | True SAR architecture delivers deterministic 500–710 ns conversion time with zero-cycle pipeline delay - essential for closed-loop control timing. |
| Independent supply rails | AVDD, DVDD, and REF operate on separate voltage domains - prevents digital switching noise from modulating analog accuracy. |
| Daisy-chain capability | Single SCLK and DOUT/DIN chain supports multi-channel synchronous sampling without additional GPIO or timing complexity. |
| Ultra-low power-down current | 50 nA AVDD quiescent current - extends battery life in intermittent-sampling applications such as portable diagnostic tools. |
| Full-scale settling | 290 ns to 16-bit accuracy - enables fast step-response measurements in transient event capture and ATE stimulus-response testing. |
Applications
| Automatic Test Equipment (ATE) | Instrumentation & Process Control |
|---|---|
Use Scenario: High-speed parametric testing of semiconductor devices requiring synchronized multi-channel sampling and sub-mV DC accuracy. IC Role / Device Role / Timing Role: Primary ADC capturing analog stimulus responses with 1-MSPS throughput and no latency for real-time pass/fail decision logic. Use Value: 93 dB SNR and ±2 LSB INL ensure measurement repeatability within 0.003% FSR, reducing calibration overhead in production test systems. |
Use Scenario: Analog sensor signal digitization in PLC analog input modules handling 4–20 mA transmitters and RTD bridges. IC Role / Device Role / Timing Role: Precision front-end ADC converting conditioned sensor outputs with independent REF/AVDD rails to reject supply-induced errors. Use Value: 2.5 V–5 V reference flexibility allows direct use of onboard 2.5 V LDO or external 4.096 V reference - eliminating scaling op-amps and saving board space. |
| Precision Medical Equipment | Low-Power Battery-Operated Instruments |
Use Scenario: ECG/EEG front-end digitization where low noise, high linearity, and DC stability are critical for clinical-grade waveform fidelity. IC Role / Device Role / Timing Role: Signal-chain ADC acquiring biopotential signals with 16-bit resolution and 93 dB SNR at 1 kHz input frequency. Use Value: 55 µW power at 10 kSPS enables >100-hour battery life in handheld diagnostics while maintaining <1 µV RMS noise floor. |
Use Scenario: Portable multimeter or environmental sensor logger operating from coin-cell or Li-ion battery with duty-cycled acquisition. IC Role / Device Role / Timing Role: Low-quiescent ADC entering 50 nA power-down state between samples - minimizing average current draw during idle periods. Use Value: Power scaling from 5.5 mW to 55 µW across 100× throughput range allows adaptive sampling strategies without hardware redesign. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-resolution, low-power SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS8862IDRCT | 680 kSPS, same VSON-10 package, identical pinout, but lower throughput and slightly reduced SNR (92.5 dB). | Better suited for cost-sensitive, lower-bandwidth applications where 1-MSPS is unnecessary. | Select when system sampling requirement is ≤680 kSPS and BOM cost optimization is prioritized over maximum speed. |
| ADS8864IDRCT | 400 kSPS, quad-channel, shared reference, same 16-bit resolution and VSON-10 footprint. | Designed for multi-channel simultaneous sampling; lacks daisy-chain but offers channel density advantage. | Choose for space-constrained designs needing four synchronized ADCs instead of cascading discrete units. |
Compared with ADS8860IDRCT, ADS8862IDRCT trades 320 kSPS speed for marginal cost reduction, while ADS8864IDRCT replaces serial scalability with integrated channel count - making ADS8860IDRCT optimal for single-channel, high-throughput, low-latency systems requiring flexible interface modes.
Availability
ADS8860IDRCT is available at Aetrix Electronics and suitable for automatic test equipment, precision instrumentation, and portable medical devices requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for ADS8860IDRCT 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 chains.
The ADS8860 belongs to TI's ultra-low-power, high-accuracy SAR ADC family designed specifically for battery-operated test and measurement, medical sensing, and process control applications demanding 16-bit integrity at minimal power.
FAQ
What is the maximum SCLK frequency supported by the ADS8860IDRCT?
The ADS8860IDRCT supports SCLK frequencies up to 66.6 MHz in all interface modes (3-wire, 4-wire, and daisy-chain). This timing specification is guaranteed across the full operating temperature range (–40°C to +85°C) and enables minimum conversion cycle times of 500 ns. The ADS8860IDRCT maintains reliable data capture even at maximum clock rate due to its robust CMOS input thresholds and internal timing margins.
Does the ADS8860IDRCT require an external reference voltage?
Yes, the ADS8860IDRCT requires an external reference voltage applied to the REF pin, which must be in the range of 2.5 V to 5 V. The device does not include an internal reference; instead, it leverages the external reference to define its full-scale input range (0 V to VREF). This design allows system-level flexibility - for example, using a precision 4.096 V reference for easy 16-bit integer scaling in microcontroller firmware.
Can the ADS8860IDRCT operate with different analog and digital supply voltages?
Yes, the ADS8860IDRCT supports independent analog (AVDD: 2.7 V–3.6 V) and digital (DVDD: 1.65 V–3.6 V) supplies. This separation prevents digital switching noise from degrading analog performance and allows interfacing with low-voltage hosts (e.g., 1.8 V FPGA I/O) while maintaining full analog accuracy. The ADS8860IDRCT specifies PSRR of 80 dB and CMRR of 90–100 dB under these mixed-supply conditions.
What package type is used for the ADS8860IDRCT?
The ADS8860IDRCT uses the VSON-10 (DRC) package: a 3.00 mm × 3.00 mm, 10-pin very thin small-outline no-lead package with an exposed thermal pad. The thermal pad must be soldered to PCB ground to achieve the specified 111.1°C/W junction-to-ambient thermal resistance. This compact, thermally enhanced package supports high-density layouts in portable and space-constrained applications.
How does the ADS8860IDRCT handle power management during idle periods?
The ADS8860IDRCT automatically enters a low-power state after each conversion, drawing only 50 nA from AVDD during acquisition. This feature reduces average power consumption significantly - for example, dropping from 5.5 mW at 1 MSPS to 55 µW at 10 kSPS. No external control signal is needed; the ADS8860IDRCT manages power state autonomously based on conversion timing, simplifying firmware design in battery-powered systems.
ADS8860IDRCT 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):
- 1M
- 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-VSON (3x3)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
ADS8860IDRCT FAQ
1.How can I place an order for ADS8860IDRCT through Aetrix?
Please submit a Request for Quotation (RFQ) for ADS8860IDRCT 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 ADS8860IDRCT reliable?
The price and inventory of ADS8860IDRCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADS8860IDRCT is usually 5 days.
3.What payment methods are accepted for ADS8860IDRCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADS8860IDRCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADS8860IDRCT?
ADS8860IDRCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADS8860IDRCT 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 ADS8860IDRCT?
For technical support, including ADS8860IDRCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADS8860IDRCT requirements.
6.How does Aetrix verify that ADS8860IDRCT is sourced from the original manufacturer or authorized distributors?
All ADS8860IDRCT 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 ADS8860IDRCT meets industry standards.
7.What is the process for return or replacement of ADS8860IDRCT?
All ADS8860IDRCT units undergo pre-shipment inspection (PSI). If there is an issue with ADS8860IDRCT, 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 ADS8860IDRCT part is unused and in its original packaging.
Return procedure for ADS8860IDRCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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