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Texas Instruments ADS8513IDWG4
- Part No.:
- ADS8513IDWG4
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
ADS8513IDWG4.pdf
- Description:
- IC ADC 16BIT SAR 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,168
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Product details
Overview
ADS8513IDWG4 from Texas Instruments is a 16-bit, 40kSPS successive approximation register (SAR) analog-to-digital converter with internal 2.5V reference, ±10V input range capability, and SPI-compatible serial/parallel interface. It operates from a single 5V supply, delivers 89dB SNR at 10kHz, ±2LSB INL, and supports industrial process control, test equipment, and portable data acquisition systems.
For engineers reviewing the ADS8513IDWG4 datasheet, ADS8513IDWG4 pinout, ADS8513IDWG4 application, or ADS8513IDWG4 equivalent, this page provides verified technical context, real-world design meaning of key specs, validated SO-16 pin assignments, confirmed alternative parts with documented functional differences, and supply-chain support for volume deployment in embedded measurement systems.
Technical Context
The ADS8513IDWG4 integrates a capacitor-based SAR architecture with integrated sample-and-hold, internal reference buffer (BUF), and configurable analog input network (R1IN/R2IN/R3IN) enabling ±10V, ±5V, 0–10V, and 0.5–4.5V ranges without external resistors. Its dual-clock mode-internal DATACLK (up to 20MHz) or external clock-supports synchronous serial data transfer with BUSY-driven frame timing.
It features true bipolar zero error of ±10mV (±2.5ppm/°C drift), 102dB min SFDR, and power-down mode consuming only 50µW. The device uses binary two's complement output format, supports global CONV-triggered simultaneous sampling across multi-chip systems, and tolerates ±25V analog input overvoltage without damage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - delivers 305µV LSB step size on ±10V range for high-precision voltage monitoring |
| Sampling Rate | 40kSPS - enables real-time capture of signals up to 130kHz usable bandwidth per Nyquist criterion |
| INL / DNL | ±2LSB max INL, –1/+2LSB max DNL - ensures monotonicity and <0.003% full-scale linearity error in closed-loop control |
| SNR / SINAD | 89dB SNR, 89dB min SINAD at 10kHz - supports accurate spectral analysis in vibration sensing and audio instrumentation |
| Reference | Internal 2.48–2.52V ±8ppm/°C drift - eliminates need for external reference IC while maintaining <±0.25% full-scale error |
| Power | 24mW typ at 40kSPS, 50µW in PWRD mode - suitable for battery-powered DAQ with low thermal load in SO-16 package |
| Analog Input Range | Configurable ±10V, ±5V, 0–10V, 0.5–4.5V - selectable via R1IN/R2IN/R3IN connections per Table 1 without recalibration |
Pinout & Package
ADS8513IDWG4 is housed in a 16-pin SOIC (SO-16, DW package) with standard 1.27mm pitch, compatible with automated PCB assembly and industrial reflow profiles. Thermal resistance θJA = 46°C/W supports operation up to +85°C ambient without forced cooling.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| R1IN | Analog input terminal | Primary analog input node; connects to BUF/GND/VIN per Table 1 to configure ±10V, ±5V, or unipolar ranges |
| R2IN | Analog input terminal | Secondary analog input node; used with R1IN/R3IN to set gain and polarity via resistor network topology |
| R3IN | Analog input terminal | Third analog input node; completes 3-terminal configuration for flexible input range selection |
| BUF | Reference buffer output | Drives R1IN/R2IN/R3IN nodes; must be connected as specified in Table 1 to enable correct input impedance (>10MΩ option) |
| CAP | Reference compensation node | Requires 1µF tantalum + 0.01µF ceramic decoupling to ground for stable internal reference regulation |
| REF | Reference I/O | Outputs internal 2.5V ref via 4kΩ series resistor; accepts external 2.3–2.7V reference to override internal source |
| DATACLK | Serial clock I/O | Output when EXT/INT = low (internal clock); input when EXT/INT = high - enables master/slave SPI synchronization |
| DATA | Serial data output | 16-bit binary two's complement MSB-first; 3-stated when CS = high; valid on both DATACLK edges in internal clock mode |
| EXT/INT | Serial clock source select | Low = internal DATACLK generation; high = external clock required - independent of conversion clock source |
| CONV | Global convert trigger | Falling edge initiates acquisition and conversion regardless of CS state; supports multi-chip simultaneous S/H |
| CS | Chip select | Active-low enables DATA, BUSY, DATACLK outputs; falling edge ignored for conversion start but required for data readout |
| BUSY | Conversion status indicator | Active-low signal asserts for entire 25µs conversion cycle; doubles as frame sync for serial data transmission |
| PWRD | Power-down control | High enters ultra-low-power mode (50µW); no pre-conditioning required - immediate wake-up with 300µs recovery |
| GND | Analog/digital ground | Pins 2 and 8 are common ground terminals; require low-inductance star connection to minimize noise coupling |
| VS | +5V analog supply | Single 4.75–5.25V rail powers analog core; requires 0.1µF ceramic + 10µF tantalum local decoupling |
Key Features
| Feature | Design Value |
|---|---|
| Configurable input ranges | Eight standard ranges (±10V, ±5V, 0–10V, etc.) selected by R1IN/R2IN/R3IN wiring - no software or calibration changes needed |
| Integrated reference buffer | BUF pin drives high-impedance inputs directly - eliminates external op-amp for >10MΩ input impedance mode |
| Overvoltage tolerance | ±25V absolute max on R1IN/R2IN/R3IN - protects against transients in industrial field wiring without external clamping |
| Multi-chip synchronization | Global CONV input + 3-stated bus allows simultaneous sampling across multiple ADS8513IDWG4 devices on shared DATA lines |
| No external calibration resistors | Factory-trimmed resistor ladder and reference ensure ±2LSB INL without user trimming - reduces BOM and test time |
Applications
| Industrial Process Control | Test & Measurement Equipment |
|---|---|
|
Use Scenario: Monitoring thermocouple, RTD, and 4–20mA loop signals in PLC analog input modules with cold-junction compensation. IC Role / Device Role / Timing Role: Primary ADC performing 40kSPS sampling of isolated sensor channels with ±10V range and internal reference stability. Use Value: Eliminates external reference and calibration components while maintaining ±0.003% linearity over –40°C to +85°C for long-term system accuracy. |
Use Scenario: Digitizing waveform outputs from function generators and power supplies in benchtop analyzers with 16-bit resolution. IC Role / Device Role / Timing Role: High-fidelity acquisition front-end with 89dB SNR and 102dB SFDR supporting FFT-based harmonic analysis. Use Value: Enables clean 10kHz signal capture with <–100dB THD, reducing post-processing noise floor correction requirements. |
| Robotics & Servo Control | Portable Data Acquisition |
|
Use Scenario: Closed-loop position/velocity feedback in DSP-based servo drives using resolver or encoder analog outputs. IC Role / Device Role / Timing Role: Real-time ADC interfacing to motor control DSP via SPI, synchronized by internal DATACLK at 20MHz. Use Value: 25µs conversion time and BUSY-driven frame sync allow deterministic sampling aligned with PWM cycles for jitter-free current loop control. |
Use Scenario: Battery-powered handheld multimeters and environmental sensors logging voltage, temperature, and strain gauge outputs. IC Role / Device Role / Timing Role: Low-power 16-bit converter operating from single Li-ion cell (via 5V boost) with 50µW power-down between readings. Use Value: 24mW active power and 50µW standby extend battery life beyond 100 hours while preserving 16-bit precision for calibration-grade measurements. |
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 |
|---|---|---|---|
| ADS8512IDW | 12-bit resolution, same SO-16 pinout, identical interface and timing - lower cost, reduced dynamic range | Suitable for cost-sensitive industrial I/O where 12-bit (2.44mV LSB on ±10V) meets accuracy needs | Select when resolution requirement is ≤12 bits and board layout reuse is critical |
| ADS7813UB | 16-bit, 200kSPS, no internal reference, requires external 2.5V ref and calibration resistors - higher speed, higher complexity | Used in high-speed DAQ where throughput >40kSPS is mandatory and system-level calibration is acceptable | Select when sampling rate >40kSPS is required and external reference infrastructure already exists |
Compared with ADS8512IDW, ADS8513IDWG4 adds 4-bit resolution at same footprint and interface; compared with ADS7813UB, it trades 160kSPS headroom for integrated reference, lower power, and simplified BOM - making it optimal for precision industrial DAQ where 40kSPS suffices.
Availability
ADS8513IDWG4 is available at Aetrix Electronics and suitable for industrial process control, test equipment, and portable data acquisition systems requiring stable component supply, long-lifecycle support, and guaranteed traceability.
Supply support for ADS8513IDWG4 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 ADS8513IDWG4 belongs to TI's precision SAR ADC product line, engineered for high-accuracy, low-power, single-supply operation in harsh industrial environments - emphasizing ease of use, configurability, and robustness over raw speed.
FAQ
What input voltage ranges does the ADS8513IDWG4 support, and how are they configured?
The ADS8513IDWG4 supports ±10V, ±5V, 0–10V, 0.5–4.5V, ±3.33V, and 0–4V ranges. Configuration is achieved by connecting R1IN, R2IN, and R3IN to VIN, BUF, or GND per Table 1 in the datasheet - no external resistors or software setup required. For example, ±10V uses R1IN→VIN, R2IN→BUF, R3IN→GND with 45.7kΩ input impedance.
Does the ADS8513IDWG4 require external calibration components?
No. The ADS8513IDWG4 requires no external calibration resistors due to factory-trimmed internal resistor ladder and reference circuitry. Its ±2LSB INL and ±10mV bipolar zero error are guaranteed over temperature without user adjustment - simplifying design and reducing BOM count.
How does the ADS8513IDWG4 handle overvoltage conditions on its analog inputs?
The ADS8513IDWG4 tolerates up to ±25V on R1IN, R2IN, and R3IN pins without damage - exceeding typical industrial transient levels. This ruggedness eliminates need for external TVS diodes or clamping circuits in 24V fieldbus or motor drive applications, improving system reliability.
Can the ADS8513IDWG4 operate with an external reference, and what is the acceptable voltage range?
Yes. Applying 2.3V to 2.7V to the REF pin overrides the internal 2.5V reference. External reference must source ≤100µA and maintain ±0.1% stability to preserve 16-bit accuracy. The internal reference remains disabled during external use, and REF pin becomes high-impedance input.
What is the power consumption of the ADS8513IDWG4 in normal and power-down modes?
In normal operation at 40kSPS and 5V supply, the ADS8513IDWG4 consumes 24mW typical (32.5mW max). In power-down mode (PWRD = high), it draws only 50µW - enabling rapid wake-up (<300µs recovery) for duty-cycled portable instruments without sacrificing precision.
ADS8513IDWG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tube
- Product Status:
- Discontinued at Digi-Key
- Number of Bits:
- 16
- Sampling Rate (Per Second):
- 40k
- Number of Inputs:
- 1
- Input Type:
- 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, Internal
- Voltage - Supply, Analog:
- 5V
- Voltage - Supply, Digital:
- 5V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 16-SOIC
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
ADS8513IDWG4 FAQ
1.How can I place an order for ADS8513IDWG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADS8513IDWG4 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 ADS8513IDWG4 reliable?
The price and inventory of ADS8513IDWG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADS8513IDWG4 is usually 5 days.
3.What payment methods are accepted for ADS8513IDWG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADS8513IDWG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADS8513IDWG4?
ADS8513IDWG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADS8513IDWG4 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 ADS8513IDWG4?
For technical support, including ADS8513IDWG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADS8513IDWG4 requirements.
6.How does Aetrix verify that ADS8513IDWG4 is sourced from the original manufacturer or authorized distributors?
All ADS8513IDWG4 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 ADS8513IDWG4 meets industry standards.
7.What is the process for return or replacement of ADS8513IDWG4?
All ADS8513IDWG4 units undergo pre-shipment inspection (PSI). If there is an issue with ADS8513IDWG4, 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 ADS8513IDWG4 part is unused and in its original packaging.
Return procedure for ADS8513IDWG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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