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Texas Instruments ADS8519IBDB
- Part No.:
- ADS8519IBDB
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 28-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
ADS8519IBDB.pdf
- Description:
- IC ADC 16BIT SAR 28SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:131
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Product details
Overview
ADS8519IBDB from Texas Instruments is a 16-bit, 250kSPS successive approximation register (SAR) analog-to-digital converter with integrated ±10V/±5V/0–8.192V input ranges, internal 4.096V reference, and SPI-compatible serial interface. It operates from a single 5V analog supply and delivers 93dB SNR at 20kHz, supporting precision data acquisition in industrial process control systems.
For engineers reviewing the ADS8519IBDB datasheet, ADS8519IBDB pinout, ADS8519IBDB application, or ADS8519IBDB equivalent, this page provides verified technical context, validated pin functions, confirmed AC/DC performance specs, and real-world interface timing behavior - all specific to the ADS8519IBDB variant in SSOP-28 packaging.
Technical Context
The ADS8519IBDB implements a capacitor-based SAR architecture with integrated sample-and-hold, internal precision resistor network for programmable input ranges, and dual-clock operation (internal or external DATACLK). Its conversion cycle comprises 1.8ms acquisition + 2.2ms conversion, fully specified over –40°C to +85°C.
It supports three data output modes: internal clock (9MHz DATACLK output), external clock (0.1–26MHz), and daisy-chain via TAG pin. The device uses binary two's complement or straight binary coding selected by SB/BTC, with BUSY signaling conversion status and SYNC enabling precise DSP synchronization.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16 bits - guarantees monotonicity and no missing codes across full temperature range. |
| Throughput Rate | 250 kSPS - fixed sampling rate with 4ms total cycle time (acquisition + conversion). |
| INL / DNL | ±1.5 LSB / ±1 LSB max - ensures high linearity for precision measurement without calibration. |
| SNR @ 20kHz | 93 dB - enables accurate digitization of low-noise sensor signals in industrial environments. |
| Reference | Internal 4.096V ±0.25% (±10V range) - eliminates need for external precision reference; drift ≤8 ppm/°C. |
| Digital Supply Range | 1.65V to 5.25V - supports interfacing with modern low-voltage microcontrollers and FPGAs. |
| Power Dissipation | 110 mW typ at 250kSPS - enables compact thermal design in space-constrained industrial modules. |
Pinout & Package
ADS8519IBDB is housed in a 28-pin SSOP (DB) package with 0.65mm pitch, JEDEC MO-153 compliant, and rated for industrial temperature operation (–40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| R1IN, R2IN, R3IN | Analog input terminals | Support ±10V, ±5V, or 0–8.192V differential/unipolar configurations per Table 2 in datasheet. |
| REF | Reference I/O | Outputs internal 4.096V reference or accepts external 3.9–4.2V reference; requires 2.2µF tantalum bypass. |
| CAP | Reference buffer capacitor terminal | Connects to 2.2µF tantalum capacitor to AGND2 for stable internal reference decoupling. |
| CS, R/C | Control inputs | ORed chip select and read/convert trigger; falling edge initiates conversion and/or data read. |
| BUSY | Status output | Active-low open-drain signal indicating conversion in progress; returns high when data ready. |
| DATA, DATACLK | Serial interface I/O | 16-bit MSB-first SPI-compatible output; DATACLK is bidirectional (output in internal mode, input in external mode). |
| EXT/INT | Interface mode select | Low = internal DATACLK generation; high = external clock synchronization for DSP interfacing. |
| TAG, SYNC, SB/BTC | Advanced interface controls | TAG enables daisy-chaining; SYNC provides timing alignment for multi-device systems; SB/BTC selects data format. |
| VANA, VDIG, AGND1/2, DGND | Power and ground | Separate analog/digital supplies and grounds minimize noise coupling; VANA = 4.75–5.25V, VDIG = 1.65–5.25V. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated input range selection | Hardware-configurable ±10V, ±5V, or 0–8.192V ranges using internal precision resistors - no external components required. |
| Dual-clock serial interface | Switchable between internal 9MHz DATACLK (simplified timing) and external 0.1–26MHz clock (DSP-synchronized operation). |
| Daisy-chain capability | TAG pin allows cascading multiple ADS8519IBDB devices on a single DATA bus - reduces PCB routing complexity in multi-channel systems. |
| Industrial-grade reliability | Specified for –40°C to +85°C with 110mW power dissipation and 67°C/W thermal resistance - suitable for uncooled industrial enclosures. |
| No missing codes guarantee | 16-bit monotonic operation confirmed across full temperature and voltage range - critical for closed-loop control accuracy. |
Applications
| Industrial Process Control | Data Acquisition Systems |
|---|---|
|
Use Scenario: Monitoring pressure, temperature, and flow sensors in PLC-based automation cabinets with ±10V analog field signals. IC Role / Device Role / Timing Role: Primary ADC converting conditioned sensor outputs into 16-bit digital values synchronized to controller scan cycles via SYNC pulse. Use Value: ±1.5 LSB INL and 93dB SNR ensure sub-0.01% measurement accuracy across 4–20mA loop equivalents and legacy analog I/O modules. |
Use Scenario: High-fidelity waveform capture in portable test equipment sampling vibration, acoustic, or ECG signals at 250kSPS. IC Role / Device Role / Timing Role: Standalone sampling ADC interfaced to FPGA via external DATACLK, using TAG for multi-channel interleaved acquisition. Use Value: Internal 4.096V reference eliminates external voltage reference IC, reducing BOM count while maintaining 93dB SNR at 20kHz input. |
| Digital Signal Processing | Medical Equipment |
|
Use Scenario: Real-time signal conditioning front-end for motor control DSPs requiring synchronized analog feedback from current/voltage sensors. IC Role / Device Role / Timing Role: ADC providing phase-aligned current samples to C2000™ MCU via BUSY-driven interrupt and external DATACLK-triggered DMA reads. Use Value: 4ms deterministic conversion cycle and SYNC output enable tight timing correlation between PWM generation and current sampling. |
Use Scenario: Patient monitoring systems digitizing biopotential signals (ECG, EEG) with strict low-noise and low-power requirements. IC Role / Device Role / Timing Role: Low-power ADC operating in PWRD mode between measurements, activated on demand with fast 1ms wake-up recovery. Use Value: 110mW typical power at full speed and 20mW in PWRD mode extends battery life while preserving 16-bit resolution and linearity. |
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 |
|---|---|---|---|
| ADS8509IBDBT | 18-bit resolution, 100kSPS, same SSOP-28 package, but higher power (140mW) and no internal reference - requires external 4.096V ref. | Better DC precision for calibration-grade instruments; unsuitable where throughput >100kSPS or board space limits external ref placement. | Select ADS8509IBDBT only when 18-bit resolution outweighs speed and integration trade-offs. |
| AD7606BSTZ | 8-channel simultaneous-sampling 16-bit SAR, 200kSPS/channel, internal ref, but larger LQFP-64 package and 145mW power. | Replaces multiple ADS8519IBDB units in multi-sensor systems; adds channel-to-channel isolation and oversampling capability. | Choose AD7606BSTZ for multi-channel synchronized acquisition; retain ADS8519IBDB for single-channel cost/space optimization. |
Compared with ADS8509IBDBT and AD7606BSTZ, the ADS8519IBDB uniquely balances single-channel 250kSPS speed, integrated reference, SSOP-28 footprint, and 110mW power - making it optimal for space-constrained, medium-speed industrial DAQ nodes where external reference omission is critical.
Availability
ADS8519IBDB is available at Aetrix Electronics and suitable for industrial process control, portable data acquisition, and medical instrumentation requiring stable component supply and long-term manufacturing continuity.
Supply support for ADS8519IBDB 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 ADS8519IBDB belongs to TI's high-accuracy SAR ADC product line, engineered for industrial and medical applications demanding guaranteed 16-bit linearity, robust noise immunity, and seamless integration with DSP/microcontroller interfaces.
FAQ
What input voltage ranges does the ADS8519IBDB support?
The ADS8519IBDB supports ±10V, ±5V, and 0V to 8.192V input ranges through internal precision resistor networks - no external components needed. These ranges are selected via external resistor connections per Table 2 in the SLAS462D datasheet. The ADS8519IBDB maintains ±1.5 LSB INL and 93dB SNR across all supported ranges at 250kSPS.
Does the ADS8519IBDB require an external reference voltage?
No - the ADS8519IBDB integrates a precision 4.096V internal reference with ±0.25% error over temperature and 8 ppm/°C drift. It can also accept an external 3.9V–4.2V reference via the REF pin if higher accuracy or custom scaling is required. The ADS8519IBDB's internal reference eliminates BOM cost and layout area versus external reference solutions.
How does the ADS8519IBDB interface with a DSP or FPGA?
The ADS8519IBDB supports SPI-compatible serial communication with selectable internal or external DATACLK. In external clock mode (EXT/INT = high), it synchronizes to the host's clock and provides SYNC pulses for timing alignment. The TAG pin enables daisy-chaining multiple ADS8519IBDB devices. BUSY and R/C signals allow precise interrupt-driven or polling-based data capture in DSP/FPGA firmware.
What is the power consumption of the ADS8519IBDB during active and standby operation?
The ADS8519IBDB consumes 110mW typical at 250kSPS (PWRD low) and drops to 20mW in power-down mode (PWRD high). It achieves 1ms recovery to full accuracy after exiting PWRD, enabling duty-cycled operation in battery-powered applications. This power profile is validated across –40°C to +85°C for the ADS8519IBDB variant.
Is the ADS8519IBDB pin-compatible with other TI ADCs?
Yes - the ADS8519IBDB features pinout compatibility with the 16-bit ADS7809 (low-speed) and 12-bit ADS7808/ADS8508 families in SSOP-28 packaging. This enables drop-in upgrades in legacy designs, though timing and performance parameters (e.g., 250kSPS vs. 10kSPS) must be revalidated. The ADS8519IBDB retains identical VANA, VDIG, AGND/DGND, and control pin locations.
ADS8519IBDB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 28-SSOP (0.209", 5.30mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Number of Bits:
- 16
- Sampling Rate (Per Second):
- 250k
- 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:
- 1.65V ~ 5.25V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 28-SSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
ADS8519IBDB FAQ
1.How can I place an order for ADS8519IBDB through Aetrix?
Please submit a Request for Quotation (RFQ) for ADS8519IBDB 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 ADS8519IBDB reliable?
The price and inventory of ADS8519IBDB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADS8519IBDB is usually 5 days.
3.What payment methods are accepted for ADS8519IBDB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADS8519IBDB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADS8519IBDB?
ADS8519IBDB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADS8519IBDB 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 ADS8519IBDB?
For technical support, including ADS8519IBDB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADS8519IBDB requirements.
6.How does Aetrix verify that ADS8519IBDB is sourced from the original manufacturer or authorized distributors?
All ADS8519IBDB 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 ADS8519IBDB meets industry standards.
7.What is the process for return or replacement of ADS8519IBDB?
All ADS8519IBDB units undergo pre-shipment inspection (PSI). If there is an issue with ADS8519IBDB, 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 ADS8519IBDB part is unused and in its original packaging.
Return procedure for ADS8519IBDB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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