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Texas Instruments ADS8317IDRBR
- Part No.:
- ADS8317IDRBR
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 8-VDFN Exposed Pad
- Datasheet:
-
ADS8317IDRBR.pdf
- Description:
- IC ADC 16BIT SAR 8SON
- Quantity:
- Payment:
- Shipping:
Inventory:4,030
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Product details
Overview
ADS8317IDRBR from Texas Instruments is a 16-bit, SAR analog-to-digital converter with differential input, SPI/SSI-compatible serial interface, and microPower operation (2mW at 2.7V/100kHz). It delivers ±1.5LSB max INL, 5LSBPP noise, and 200kSPS throughput in an 8-pin SON package - used in isolated data acquisition and battery-powered sensor front-ends.
For engineers reviewing the ADS8317IDRBR datasheet, ADS8317IDRBR pinout, ADS8317IDRBR application, or ADS8317IDRBR equivalent, key selection criteria include its 2.7V–5.5V supply range, internal sample-and-hold, programmable reference input (0.1V to VDD/2), and guaranteed no missing codes across full supply range.
Technical Context
The ADS8317IDRBR implements a capacitive redistribution SAR architecture with integrated sample-and-hold, enabling single-cycle acquisition and conversion without pipeline delay. Its differential input supports bipolar operation with common-mode voltage ranging from –VREF to +VREF, and full-scale range set directly by the external reference voltage.
Timing is controlled by an external DCLOCK signal (24kHz–4.8MHz); 22 clock cycles complete one 16-bit conversion, with LSB-first serial output on DOUT synchronized to DCLOCK falling edge. Chip select (CS/SHDN) enables shutdown mode when high, reducing supply current to 0.3μW at 2.7V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - provides 65,536 discrete output levels for high-precision measurement systems. |
| INL (max) | ±1.5 LSB - ensures monotonicity and accurate end-point linearity in closed-loop control feedback paths. |
| Throughput rate | 200 kSPS at VDD = 2.7V - supports real-time vibration analysis and multichannel sampling at ≤100kHz per channel. |
| Supply current | 1.4 mA typical at 2.7V/200kHz - enables continuous operation in energy-constrained portable instrumentation. |
| Reference range | 0.1 V to VDD/2 - allows flexible scaling of input dynamic range (e.g., ±1.25V FSR at 2.7V supply). |
| Package | SON-8 (3×3 mm, DRB) with exposed thermal pad - supports compact PCB layout and improved thermal dissipation in sealed enclosures. |
| Operating temp | –40°C to +85°C - qualified for industrial automation and remote telemetry environments. |
Pinout & Package
ADS8317IDRBR is housed in an 8-pin SON package (DRB) with an exposed thermal pad requiring PCB soldering for thermal and mechanical integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| REF | Analog input | External reference voltage input (0.1V to VDD/2); sets full-scale differential input range. |
| +IN | Analog input | Noninverting differential analog input; accepts signals up to VDD + 0.2V. |
| –IN | Analog input | Inverting differential analog input; defines common-mode and differential swing. |
| GND | Power-supply connection | Analog ground reference for ADC core and input circuitry; must be low-impedance. |
| CS/SHDN | Digital input | Active-low chip select; driven high to enter ultra-low-power shutdown mode (0.3μW). |
| DOUT | Digital output | CMOS/LVCMOS serial output; LSB-first, synchronous to DCLOCK falling edge. |
| DCLOCK | Digital input | Asynchronous external clock controlling conversion timing (24kHz–4.8MHz). |
| VDD | Power-supply connection | Single supply rail (2.7V–5.5V); powers analog core, digital interface, and internal bias circuits. |
Key Features
| Feature | Design Value |
|---|---|
| No missing codes | Guaranteed over full 16-bit range and entire supply voltage (2.7V–5.5V), ensuring monotonic response in position/speed control loops. |
| MicroPower operation | 2mW at 2.7V/100kHz and 0.3μW in shutdown - extends battery life in wireless sensor nodes beyond 5 years. |
| Differential input architecture | Rejects common-mode noise up to 80dB; enables direct connection to instrumentation amplifiers and isolation transformers. |
| SPI/SSI-compatible interface | Standard 3-wire serial protocol with no external components required - simplifies host MCU integration and reduces BOM count. |
| Factory-trimmed linearity | INL and DNL calibrated at package level and continuously updated per conversion cycle - maintains accuracy across temperature and aging. |
Applications
| Battery-Operated Data Loggers | Isolated Industrial Sensors |
|---|---|
Use Scenario: Continuous 24/7 monitoring of temperature, pressure, and humidity in remote environmental stations powered by Li-SOCl₂ batteries. IC Role / Device Role / Timing Role: Primary ADC capturing conditioned analog outputs from precision transducers; operates at 10kHz with automatic power-down between samples. Use Value: 2mW active power and 0.3μW shutdown enable >10-year battery life while maintaining 16-bit resolution and ±1.5LSB linearity. | Use Scenario: High-voltage motor phase current sensing in variable-frequency drives using optocoupler-isolated front-end signal conditioning. IC Role / Device Role / Timing Role: Isolated-side ADC digitizing differential current shunt voltage; synchronized to PWM carrier via external DCLOCK. Use Value: Differential input rejects common-mode transients >1kV/μs; 200kSPS throughput captures current ripple harmonics up to 100kHz. |
| Remote Vibration Monitoring Nodes | Multi-Channel Simultaneous Sampling Systems |
Use Scenario: Wireless MEMS accelerometer nodes deployed on rotating machinery for predictive maintenance, transmitting FFT-coefficient packets over LoRaWAN. IC Role / Device Role / Timing Role: High-fidelity digitizer for ±2g piezoelectric sensors; configured for 100kSPS with 84.8dB SNR at 10kHz input. Use Value: 5LSBPP noise floor and 13.77 ENOB preserve spectral integrity for bearing fault frequency detection below 1kHz. | Use Scenario: Synchronized acquisition of voltage, current, and temperature across 8 channels in power quality analyzers using time-interleaved ADS8317IDRBR units. IC Role / Device Role / Timing Role: One ADC per channel, all driven by common DCLOCK and CS lines to ensure sub-10ns inter-channel skew. Use Value: Pin-compatible with ADS8321 and identical timing behavior enable drop-in channel expansion without layout changes. |
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 |
|---|---|---|---|
| ADS8321IDRBT | Same 16-bit SAR architecture, 250kSPS max, but requires 5V supply only; higher power (10mW at 5V/250kHz). | Best suited for fixed-line-powered systems where higher throughput and 5V logic compatibility are prioritized over battery life. | Select ADS8321IDRBT when system already uses 5V rails and needs maximum speed; ADS8317IDRBR preferred for dual-supply or low-voltage designs. |
| AD7682BCPZ-RL7 | 16-bit SAR ADC with 250kSPS, SPI interface, and internal reference; consumes 4.5mW at 5V/250kHz but lacks shutdown mode below 1μA. | Used where board space is constrained and reference stability is critical; not suitable for ultra-low-power sleep/wake cycles. | Choose AD7682BCPZ-RL7 if internal 2.5V reference and guaranteed 16-bit no-missing-codes are mandatory; ADS8317IDRBR offers superior shutdown efficiency and wider supply range. |
Compared with ADS8321IDRBT and AD7682BCPZ-RL7, ADS8317IDRBR uniquely balances 2.7V operation, 0.3μW shutdown, and 200kSPS throughput in a 3×3mm SON package - making it optimal for space- and energy-constrained distributed sensing nodes.
Availability
ADS8317IDRBR is available at Aetrix Electronics and suitable for battery-operated data loggers, isolated industrial sensors, and remote vibration monitoring nodes requiring stable component supply and long-term production continuity.
Supply support for ADS8317IDRBR 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 company headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.
The ADS8317 product line targets high-accuracy, low-power data acquisition in portable and isolated systems - designed specifically for applications demanding 16-bit resolution without sacrificing energy efficiency or board area.
FAQ
What is the maximum sampling rate supported by ADS8317IDRBR?
The ADS8317IDRBR supports a maximum throughput rate of 200kSPS when operated at VDD = 2.7V and fDCLOCK = 4.8MHz. This is achieved using 22 DCLOCK cycles per conversion. At VDD = 5V, the device can reach 250kSPS with fDCLOCK = 6.0MHz, but the ADS8317IDRBR variant is characterized and specified for 200kSPS under 2.7V conditions per its ordering information and electrical characteristics tables.
Does ADS8317IDRBR require an external reference voltage?
Yes, ADS8317IDRBR requires an external reference voltage applied to the REF pin. The reference must be between 0.1V and VDD/2 (e.g., 1.25V max at 2.7V supply), and its value directly determines the full-scale differential input range (+IN to –IN). No internal reference is provided; the device relies entirely on this externally sourced, stable voltage for conversion accuracy.
What is the function of the CS/SHDN pin on ADS8317IDRBR?
The CS/SHDN pin on ADS8317IDRBR serves a dual role: when pulled low, it acts as chip select enabling serial communication and conversion; when driven high, it places the device into ultra-low-power shutdown mode, reducing supply current to just 0.3μW at 2.7V. This pin is essential for power-gating in battery-powered applications and does not require debouncing or external pull resistors for basic operation.
Is ADS8317IDRBR pin-compatible with other devices in the same family?
Yes, ADS8317IDRBR is pin-compatible with the ADS8321 in the same 8-pin SON (DRB) and MSOP-8 (DGK) packages. Both share identical pin functions, timing behavior, and serial interface protocol. However, ADS8321 is rated for 5V-only operation and higher throughput (250kSPS), while ADS8317IDRBR supports 2.7V–5.5V and emphasizes microPower performance - making them functionally interchangeable only within shared supply and speed constraints.
What package type is used for ADS8317IDRBR and what assembly considerations apply?
ADS8317IDRBR uses the SON-8 (DRB) package - a 3mm × 3mm, 0.5mm-pitch leadless package with an exposed thermal pad. Per TI's datasheet, the thermal pad must be soldered to the PCB for proper thermal dissipation and mechanical reliability. Standard reflow profiles for lead-free assembly apply, and the pad should be connected to a solid ground plane with ≥4 thermal vias for optimal performance in continuous-conversion applications.
ADS8317IDRBR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- microPOWER™
- Package/Case:
- 8-VDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 16
- Sampling Rate (Per Second):
- 250k
- 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, 5V
- Voltage - Supply, Digital:
- 2.7V ~ 3.6V, 5V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 8-SON (3x3)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
ADS8317IDRBR FAQ
1.How can I place an order for ADS8317IDRBR through Aetrix?
Please submit a Request for Quotation (RFQ) for ADS8317IDRBR 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 ADS8317IDRBR reliable?
The price and inventory of ADS8317IDRBR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADS8317IDRBR is usually 5 days.
3.What payment methods are accepted for ADS8317IDRBR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADS8317IDRBR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADS8317IDRBR?
ADS8317IDRBR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADS8317IDRBR 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 ADS8317IDRBR?
For technical support, including ADS8317IDRBR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADS8317IDRBR requirements.
6.How does Aetrix verify that ADS8317IDRBR is sourced from the original manufacturer or authorized distributors?
All ADS8317IDRBR 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 ADS8317IDRBR meets industry standards.
7.What is the process for return or replacement of ADS8317IDRBR?
All ADS8317IDRBR units undergo pre-shipment inspection (PSI). If there is an issue with ADS8317IDRBR, 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 ADS8317IDRBR part is unused and in its original packaging.
Return procedure for ADS8317IDRBR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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