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Texas Instruments ADS8864IDRCR
- Part No.:
- ADS8864IDRCR
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
ADS8864IDRCR.pdf
- Description:
- IC ADC 16BIT SAR 10VSON
- Quantity:
- Payment:
- Shipping:
Inventory:1,672
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Product details
Overview
ADS8864IDRCR from Texas Instruments is a 16-bit, 400-kSPS, single-ended input SAR analog-to-digital converter with SPI-compatible serial interface, 93 dB SNR, ±2.0 LSB max INL, and 2.6 mW power dissipation at full speed-designed for precision data acquisition in battery-powered instrumentation and process control systems.
For engineers reviewing the ADS8864IDRCR datasheet, ADS8864IDRCR pinout, ADS8864IDRCR application, or ADS8864IDRCR equivalent, this page delivers verified electrical specs, VSON-10 package mapping, daisy-chain timing behavior, and real-world use context for low-power, high-accuracy ADC selection.
Technical Context
The ADS8864IDRCR implements a successive approximation register (SAR) architecture with no latency output and supports unipolar single-ended analog inputs from 0 V to VREF (2.5 V–5 V). Its reference voltage is independent of AVDD and can exceed it, enabling flexible signal scaling without external amplification.
It features three configurable serial interface modes-3-wire CS, 4-wire CS, and daisy-chain-with SCLK up to 66.6 MHz and built-in busy-indicator bit option. Full-scale step settling occurs in 1200 ns, 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 | 400 kSPS maximum-enables real-time capture of signals up to ~100 kHz bandwidth with >90 dB SINAD. |
| SNR / THD | 93 dB / –108 dB at 1 kHz-supports high-fidelity measurement of low-distortion sensor outputs. |
| INL / DNL | ±2.0 LSB max / ±1.0 LSB max-ensures accurate end-point linearity for calibration-critical applications. |
| Power dissipation | 2.6 mW at 400 kSPS; scales linearly down to 65 µW at 10 kSPS-ideal for adaptive power management. |
| Reference range | 2.5 V to 5 V, independent of AVDD-permits direct interfacing to diverse sensor bridges or DAC references. |
| Supply ranges | AVDD: 2.7–3.6 V; DVDD: 1.65–3.6 V-allows mixed-voltage host system integration (e.g., 1.8 V logic + 3.3 V analog). |
Pinout & Package
VSON-10 (DRC) package: 3.00 mm × 3.00 mm, exposed thermal pad (recommended to connect to PCB ground), rated for –40°C to +85°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| REF | Analog reference input | Accepts 2.5–5 V external reference; decoupling ≥10 µF required; sets full-scale range for AINP. |
| AINP | Analog input (+) | Single-ended input node; operates 0 V to VREF + 0.1 V; 59 pF input capacitance affects anti-alias filter design. |
| AINN | Analog input (–) | Ground-referenced return path; internally tied to GND; enables pseudo-differential rejection via layout. |
| AVDD | Analog supply | 2.7–3.6 V analog rail; requires 1-µF decoupling to GND; powers core SAR and reference buffer. |
| DVDD | Digital supply | 1.65–3.6 V I/O rail; independent of AVDD; powers SPI interface and logic; 1-µF decoupling required. |
| GND | Common ground | Shared analog/digital reference plane; internal connection to REF return; critical for noise isolation. |
| CONVST | Convert start / CS | Edge-triggered conversion initiator; doubles as chip select in 3-/4-wire modes; 10 ns min pulse width. |
| DIN | Serial data input | Configures interface mode at conversion start; serves as CS in 4-wire mode; CMOS-level compatible. |
| DOUT | Serial data output | MSB-first, SCLK-synchronized output; tri-state controlled by CONVST/SCLK edge per mode; 20 pF load max. |
| SCLK | Serial clock input | Up to 66.6 MHz; controls data transfer timing; falling edge samples DOUT; duty cycle 45–55%. |
Key Features
| Feature | Design Value |
|---|---|
| No-latency output | Delivers conversion result immediately after completion-eliminates pipeline delay for time-critical closed-loop control. |
| SPI-compatible daisy-chain | Enables cascading multiple ADS8864IDRCR devices on one bus without additional GPIO, reducing host resource usage. |
| Independent reference & supplies | VREF, AVDD, and DVDD operate at different voltages-simplifies system power architecture and avoids level-shifting. |
| 1200 ns full-scale settling | Guarantees 16-bit accuracy after step input-supports fast transient capture in ATE and medical diagnostics. |
| 50 nA AVDD power-down current | Enables microamp-level sleep states between conversions-extends battery life in portable instruments. |
Applications
| Automatic Test Equipment (ATE) | Instrumentation & Process Control |
|---|---|
Use Scenario: High-speed parametric testing of semiconductor devices requiring precise DC/AC characterization at ≤400 kSPS. IC Role / Device Role / Timing Role: Primary digitizer for voltage/current stimulus-response measurement with <5 ns aperture jitter. Use Value: 93 dB SNR and ±2 LSB INL ensure traceable metrology-grade results without post-calibration correction. |
Use Scenario: Analog sensor monitoring in PLC I/O modules with 4–20 mA loop interfaces and local signal conditioning. IC Role / Device Role / Timing Role: Isolated front-end ADC converting conditioned transducer outputs to digital for Modbus RTU transmission. Use Value: 2.5–5 V reference flexibility allows direct compatibility with industrial-grade voltage references (e.g., REF5025). |
| Precision Medical Equipment | Low-Power Battery-Operated Instruments |
Use Scenario: ECG/EEG front-end digitization where low noise, low distortion, and DC accuracy are essential for diagnostic fidelity. IC Role / Device Role / Timing Role: Signal chain ADC capturing bio-potential waveforms with 16-bit resolution and minimal harmonic artifacts. Use Value: –108 dB THD prevents spectral contamination of low-amplitude physiological signals near 50/60 Hz. |
Use Scenario: Handheld multimeter or portable gas analyzer operating from coin-cell or Li-ion battery for >1-year field deployment. IC Role / Device Role / Timing Role: Power-gated ADC subsystem that draws only 65 µW at 10 kSPS during standby sampling. Use Value: Dynamic power scaling and 50 nA AVDD shutdown current directly extend usable battery runtime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-precision, low-power SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS8862IDRCT | 680 kSPS throughput, same 16-bit resolution and VSON-10 package; higher power (3.8 mW @ 680 kSPS); identical interface and reference flexibility. | Better suited for wideband applications (e.g., ultrasonic sensing) where >400 kSPS is required. | Select ADS8862IDRCT when sampling bandwidth exceeds 400 kSPS but 16-bit linearity and low power remain critical. |
| ADS8866IDRCR | Differential input architecture (vs. single-ended); same 400 kSPS, 16-bit, VSON-10; improved CMRR (100 dB); requires matched input pair and differential driver. | Ideal for noisy industrial environments or bridge sensor interfaces where common-mode rejection is mandatory. | Choose ADS8866IDRCR when measuring differential sensors (e.g., load cells) and rejecting EMI-induced common-mode noise is prioritized. |
Compared with ADS8864IDRCR, ADS8862IDRCT trades lower power for higher speed, while ADS8866IDRCR replaces single-ended simplicity with differential robustness-both retain TI's 16-bit SAR performance envelope but address distinct signal integrity requirements.
Availability
ADS8864IDRCR is available at Aetrix Electronics and suitable for automatic test equipment, precision instrumentation, and portable medical devices requiring stable component supply and long-term production continuity.
Supply support for ADS8864IDRCR 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 ADS8864IDRCR belongs to TI's precision SAR ADC product line, engineered for high-resolution, low-power, and low-noise data acquisition in space-constrained, battery-sensitive, and metrology-grade applications.
FAQ
What is the maximum SCLK frequency supported by the ADS8864IDRCR?
The ADS8864IDRCR supports SCLK frequencies up to 66.6 MHz under recommended operating conditions (AVDD = 3 V, DVDD = 3 V). This enables high-speed serial data transfer with minimal interface overhead, allowing the ADS8864IDRCR to sustain its full 400-kSPS throughput without bottlenecking the digital interface.
Does the ADS8864IDRCR require an external reference voltage?
Yes, the ADS8864IDRCR 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; using a stable, low-noise external reference (e.g., REF5025) directly determines the full-scale input range and overall DC accuracy of the ADS8864IDRCR.
Can the ADS8864IDRCR operate with different analog and digital supply voltages?
Yes, the ADS8864IDRCR supports independent analog (AVDD: 2.7–3.6 V) and digital (DVDD: 1.65–3.6 V) supplies. This allows the ADS8864IDRCR to interface seamlessly with mixed-voltage systems-for example, pairing a 3.3 V analog sensor stage with a 1.8 V FPGA or microcontroller, without level shifters.
What package type is used for the ADS8864IDRCR?
The ADS8864IDRCR 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 for optimal thermal performance and noise immunity-confirmed in TI's SBAS572B datasheet.
How does the daisy-chain mode function on the ADS8864IDRCR?
In daisy-chain mode, the ADS8864IDRCR accepts DIN from the previous device and drives DOUT to the next, enabling multi-ADC synchronization over a single SPI bus. The ADS8864IDRCR's timing parameters-including tsu-DI-CK (1.5 ns setup) and th-DI-CNV (0 ns hold)-are validated for reliable cascaded operation without added inter-device delays.
ADS8864IDRCR 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):
- 400k
- 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:
- -
ADS8864IDRCR FAQ
1.How can I place an order for ADS8864IDRCR through Aetrix?
Please submit a Request for Quotation (RFQ) for ADS8864IDRCR 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 ADS8864IDRCR reliable?
The price and inventory of ADS8864IDRCR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADS8864IDRCR is usually 5 days.
3.What payment methods are accepted for ADS8864IDRCR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADS8864IDRCR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADS8864IDRCR?
ADS8864IDRCR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADS8864IDRCR 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 ADS8864IDRCR?
For technical support, including ADS8864IDRCR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADS8864IDRCR requirements.
6.How does Aetrix verify that ADS8864IDRCR is sourced from the original manufacturer or authorized distributors?
All ADS8864IDRCR 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 ADS8864IDRCR meets industry standards.
7.What is the process for return or replacement of ADS8864IDRCR?
All ADS8864IDRCR units undergo pre-shipment inspection (PSI). If there is an issue with ADS8864IDRCR, 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 ADS8864IDRCR part is unused and in its original packaging.
Return procedure for ADS8864IDRCR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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