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Texas Instruments ADS8317IDRBT
- Part No.:
- ADS8317IDRBT
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 8-VDFN Exposed Pad
- Datasheet:
-
ADS8317IDRBT.pdf
- Description:
- IC ADC 16BIT SAR 8SON
- Quantity:
- Payment:
- Shipping:
Inventory:4,714
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Product details
Overview
ADS8317IDRBT 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 ±2 LSB INL, 5 LSBPP noise, and 200 kSPS throughput in an 8-pin SON package - enabling high-precision data acquisition in battery-powered industrial sensors.
For engineers reviewing the ADS8317IDRBT datasheet, ADS8317IDRBT pinout, ADS8317IDRBT application, or ADS8317IDRBT equivalent, key selection considerations include its 2.7V–5.5V supply range, VREF programmability (0.1V to VDD/2), differential input architecture, low-power shutdown mode (0.6 μW), and SON-8 thermal-pad layout requirements.
Technical Context
The ADS8317IDRBT implements a capacitive redistribution SAR architecture with integrated sample-and-hold, fabricated in 0.6μm CMOS. It acquires and converts at up to 200 kSPS (at 2.7V) using an external DCLOCK signal (24 kHz–4.8 MHz), with no pipeline delay - output data on DOUT reflects the conversion currently in progress.
Its analog front-end supports true bipolar differential input (±VREF full-scale), with input resistance of 100 Ω during sampling and 5 GΩ in hold mode. Reference input current scales with sampling rate (e.g., 9–14 μA at 200 kSPS), and the internal trim procedure continuously updates offset/gain calibration after each acquisition cycle.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - delivers 1 LSB = 15.3 ppm full-scale precision for high-fidelity sensor digitization. |
| INL (max) | ±2 LSB at VDD = 2.7V - ensures monotonicity and accurate end-point linearity across temperature. |
| Throughput Rate | 200 kSPS at 2.7V - enables real-time vibration monitoring or motor control loop sampling. |
| Power Dissipation | 2 mW at 2.7V/200 kSPS - allows continuous operation in energy-constrained portable instrumentation. |
| Reference Range | 0.1 V to VDD/2 - permits flexible scaling (e.g., 1.25 V ref at 2.7V supply for ±1.25 V differential input). |
| No Missing Codes | Guaranteed 16-bit - eliminates code gaps critical for closed-loop control and metrology applications. |
| SNR (typ) | 84.8 dB at 10 kHz input - supports >13.7 ENOB for clean signal reconstruction in noisy environments. |
Pinout & Package
The ADS8317IDRBT is housed in an 8-pin SON (DRB) package with exposed thermal pad requiring PCB soldering for thermal and mechanical integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| REF | Analog input | External reference voltage input (0.1 V to VDD/2); sets full-scale differential input range. |
| +IN | Analog input | Noninverting differential analog input; accepts signals within –0.1 V to VDD + 0.1 V. |
| –IN | Analog input | Inverting differential analog input; paired with +IN for true bipolar measurement. |
| GND | Power-supply connection | Analog ground reference; must be low-impedance and separated from digital ground where possible. |
| CS/SHDN | Digital input | Active-low chip select; driven high to enter ultra-low-power shutdown (0.6 μW). |
| DOUT | Digital output | CMOS/LVCMOS serial data output (MSB-first or LSB-first configurable); tri-state when CS high. |
| DCLOCK | Digital input | Asynchronous external clock input (24 kHz–4.8 MHz); controls conversion timing and data transfer rate. |
| VDD | Power-supply connection | Single supply rail (2.7 V–5.5 V); powers analog and digital sections; requires local 0.1 μF decoupling. |
Key Features
| Feature | Design Value |
|---|---|
| Capacitive SAR with integrated S/H | Eliminates need for external sample-and-hold circuitry while maintaining 500 kHz full-power bandwidth at 5V. |
| Programmable reference input | Accepts 0.1 V–VDD/2 reference voltage - enables direct interfacing with low-voltage sensors or precision references. |
| Low-power shutdown mode | 0.6 μW power dissipation (VDD = 5V, CS = VDD) - extends battery life in intermittent-sampling systems. |
| Factory-trimmed DC accuracy | Offset and gain errors stored in non-volatile memory and updated per acquisition - maintains ±1 mV offset stability over temperature. |
| SPI/SSI-compatible serial interface | Supports standard 3-wire synchronous protocol with MSB-first or LSB-first data format - simplifies host MCU integration. |
Applications
| Battery-Powered Sensor Node | Isolated Industrial Data Acquisition |
|---|---|
Use Scenario: Continuous voltage/current monitoring in wireless field transmitters powered by Li-SOCl₂ cells. IC Role / Device Role / Timing Role: Primary ADC digitizing conditioned analog outputs from isolation amplifiers or shunt-based current sensors. Use Value: 2 mW active power and 0.6 μW shutdown enable multi-year battery life without sacrificing 16-bit resolution. |
Use Scenario: High-voltage motor drive feedback collection across reinforced isolation barriers. IC Role / Device Role / Timing Role: Isolated-side ADC capturing phase currents and DC-link voltage with galvanic separation. Use Value: Differential input rejects common-mode noise induced by fast-switching IGBTs; 200 kSPS supports real-time FOC algorithms. |
| Portable Vibration Analyzer | Multi-Channel Simultaneous Sampling System |
Use Scenario: Handheld equipment acquiring accelerometer waveforms for bearing fault detection. IC Role / Device Role / Timing Role: Precision digitizer for IEPE or charge-mode piezoelectric sensors with onboard signal conditioning. Use Value: 84.8 dB SNR and 13.7 ENOB preserve spectral integrity of 10 kHz harmonics critical for envelope analysis. |
Use Scenario: Synchronized analog capture across 8+ channels in power quality analyzers or oscilloscope front-ends. IC Role / Device Role / Timing Role: One of multiple ADS8317IDRBT devices sharing a common DCLOCK and CS lines for deterministic timing alignment. Use Value: Pin-compatibility with ADS8321 allows scalable channel count expansion without board redesign. |
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 |
|---|---|---|---|
| ADS8321IDRCT | Pin-compatible 16-bit SAR ADC; higher throughput (500 kSPS), higher power (12 mW at 5V), no internal trim - requires external calibration. | Preferred for high-speed control loops where latency < 2 μs is required; less suitable for ultra-low-power battery use. | Select ADS8321IDRCT only when 500 kSPS and lower conversion latency outweigh power budget constraints. |
| AD7682BCPZ-RL7 | 16-bit SAR ADC with integrated reference (4.096 V), SPI interface, and 250 kSPS; consumes 4.5 mW at 2.5 V; no differential input - single-ended only. | Reduces BOM count via internal reference but lacks true differential input needed for noise rejection in industrial settings. | Choose AD7682BCPZ-RL7 when system-level simplification (no external REF) and single-ended signal chain dominate design priorities. |
Compared with ADS8321IDRCT and AD7682BCPZ-RL7, the ADS8317IDRBT uniquely balances microPower operation (2 mW), true differential input, and factory-trimmed DC accuracy - making it optimal for portable, isolated, or multi-channel systems where power, noise immunity, and calibration stability are co-prioritized.
Availability
ADS8317IDRBT is available at Aetrix Electronics and suitable for battery-operated systems, isolated data acquisition modules, and simultaneous multichannel sampling applications requiring stable component supply and long-term lifecycle support.
Supply support for ADS8317IDRBT 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 low-power signal chains.
The ADS8317IDRBT belongs to TI's precision SAR ADC product line, engineered for high-resolution, low-power, and thermally robust performance in industrial sensing, portable instrumentation, and isolated measurement systems.
FAQ
What is the maximum sampling rate of the ADS8317IDRBT at 2.7V supply?
The ADS8317IDRBT achieves a maximum throughput rate of 200 kSPS when operated at VDD = 2.7V and fDCLOCK = 4.8 MHz. This is confirmed in the Electrical Characteristics table under "SAMPLING DYNAMICS" for VDD = +2.7V conditions, where "Throughput rate (22 DCLOCKs)" is specified as 200 kSPS.
Does the ADS8317IDRBT require an external reference voltage?
Yes, the ADS8317IDRBT requires an external reference voltage applied to the REF pin. The reference must be between 0.1 V and VDD/2 (e.g., 1.25 V at 2.7V supply), and its value directly defines the full-scale differential input range (±VREF). No internal reference is provided.
How does the CS/SHDN pin function on the ADS8317IDRBT?
The CS/SHDN pin serves dual functions: when pulled low, it enables normal conversion and serial data transfer; when driven high, it places the ADS8317IDRBT into ultra-low-power shutdown mode, reducing supply current to just 0.6 μW (at VDD = 5V), as specified in the "ELECTRICAL CHARACTERISTICS: GENERAL" section.
Is the ADS8317IDRBT pin-compatible with other devices in its family?
Yes, the ADS8317IDRBT is explicitly stated as pin-compatible with the ADS8321 in the "FEATURES" section of the datasheet. Both share identical 8-pin SON (DRB) and MSOP-8 footprints, enabling drop-in replacement in designs targeting higher speed (ADS8321) or lower power (ADS8317IDRBT).
What package type and thermal requirements apply to the ADS8317IDRBT?
The ADS8317IDRBT uses the SON-8 (DRB) package with an exposed thermal pad. As noted in the "PIN CONFIGURATION" section, this thermal pad must be soldered to the PCB for proper thermal dissipation and mechanical reliability - failure to do so may impair performance and long-term reliability.
ADS8317IDRBT 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:
- -
ADS8317IDRBT FAQ
1.How can I place an order for ADS8317IDRBT through Aetrix?
Please submit a Request for Quotation (RFQ) for ADS8317IDRBT 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 ADS8317IDRBT reliable?
The price and inventory of ADS8317IDRBT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADS8317IDRBT is usually 5 days.
3.What payment methods are accepted for ADS8317IDRBT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADS8317IDRBT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADS8317IDRBT?
ADS8317IDRBT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADS8317IDRBT 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 ADS8317IDRBT?
For technical support, including ADS8317IDRBT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADS8317IDRBT requirements.
6.How does Aetrix verify that ADS8317IDRBT is sourced from the original manufacturer or authorized distributors?
All ADS8317IDRBT 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 ADS8317IDRBT meets industry standards.
7.What is the process for return or replacement of ADS8317IDRBT?
All ADS8317IDRBT units undergo pre-shipment inspection (PSI). If there is an issue with ADS8317IDRBT, 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 ADS8317IDRBT part is unused and in its original packaging.
Return procedure for ADS8317IDRBT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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