ADS8519IDBR - 16-Bit 250kSPS SAR ADC | Texas Instruments
MPN: ADS8519IDBR β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $14.27 | $14.27 |
| 10 | $13.5 | $135.00 |
| 100 | $12.1 | $1,210.00 |
| 500 | $10.85 | $5,425.00 |
| 1,000 | $9.75 | $9,750.00 |
Drop-in alternatives for ADS8519IDBR β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
ADS8519IDBRG4
β Drop-Inπ Reference alternative (not in catalog)
ADS7809PB
β Drop-Inπ Reference alternative (not in catalog)
ADS8508IDB
β Drop-Inπ Reference alternative (not in catalog)
AD7606BSTZ
β Drop-Inβ In Stock
$16.9 / Unit
View Datasheet βMAX1169BEEG+
β Drop-Inπ Reference alternative (not in catalog)
ADS8519IDBR Maximum Ratings & Electrical Characteristics
| Resolution | 16 bits |
| Sampling Rate | 250 kSPS |
| Number of Inputs | 1 |
| Input Type | Single-Ended |
| Input Ranges | 8.192V, Β±5V, Β±10V |
| SNR | 93 dB (20 kHz input) |
| INL (Max) | Β±1.5 LSB |
| DNL (Max) | Β±1 LSB |
| No Missing Codes | 16 bits |
| Interface | SPI-compatible serial with daisy-chain |
| Analog Supply Voltage | 5V |
| I/O Supply Voltage | 1.65V to 5.25V |
| Internal Reference | 4.096V |
| Power Dissipation | 110 mW typ at 250 kSPS |
| Package | 28-SSOP (DB) |
| Operating Temperature | -40Β°C to +85Β°C |
| RoHS | Compliant |
ADS8519IDBR Pin Configuration
| Pin 1 | AVDD β Analog power supply (5V) |
| Pin 2 | AGND β Analog ground |
| Pin 3 | VIN β Analog input |
| Pin 4 | REF β Reference input/output |
| Pin 5 | REFGND β Reference ground |
| Pin 6 | CAP β Internal reference bypass |
| Pin 7 | DVDD β Digital I/O supply (1.65V-5.25V) |
| Pin 8 | DGND β Digital ground |
| Pin 9 | SDATA β Serial data output |
| Pin 10 | SCLK β Serial clock input |
| Pin 11 | CS β Chip select (active low) |
| Pin 12 | TAG β Daisy-chain tag input |
| Pin 13 | BUSY β Conversion status output |
| Pin 14 | RANGE β Input range select |
| Pin 15 | PD β Power down (active high) |
| Pin 16 | NC β No connect |
| Pin 17 | NC β No connect |
| Pin 18 | NC β No connect |
| Pin 19 | NC β No connect |
| Pin 20 | NC β No connect |
| Pin 21 | NC β No connect |
| Pin 22 | NC β No connect |
| Pin 23 | NC β No connect |
| Pin 24 | NC β No connect |
| Pin 25 | NC β No connect |
| Pin 26 | NC β No connect |
| Pin 27 | NC β No connect |
| Pin 28 | NC β No connect |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
ADS8519IDBR is suitable for 6 applications: Industrial Process Control, Data Acquisition Systems, Medical Instrumentation, Test and Measurement Equipment, Power Monitoring, Audio Test Equipment.
Industrial Process Control
The ADS8519IDBR is ideal for industrial process control systems that require high-resolution, accurate analog-to-digital conversion of sensor signals. Its 16-bit resolution and 93dB SNR ensure precise measurement of temperature, pressure, and flow. The wide input ranges (8.192V, Β±5V, Β±10V) allow direct connection to various industrial sensors without external scaling. The SPI-compatible serial interface simplifies isolation and integration with PLCs and microcontrollers. The device's -40Β°C to +85Β°C operating range ensures reliable performance in harsh industrial environments. With a sampling rate of 250kSPS, it can handle fast-changing process variables, making it suitable for real-time control loops.
Recommended
Data Acquisition Systems
In data acquisition systems, the ADS8519IDBR provides high-speed, high-resolution conversion of multiple analog signals. Its 250kSPS sampling rate allows capturing fast transients, while the 16-bit resolution ensures detailed waveform analysis. The daisy-chain feature enables multiple ADCs to be connected in series, reducing the number of digital I/O lines required. The internal reference simplifies design, and the SPI interface is compatible with most microcontrollers and DSPs. The device's low power dissipation (110mW) is beneficial for portable or multi-channel systems. The wide input range options make it versatile for various signal levels, from low-level sensors to high-voltage industrial signals.
Recommended
Medical Instrumentation
The ADS8519IDBR is well-suited for medical instrumentation such as patient monitoring and diagnostic equipment. Its high resolution (16-bit) and low noise (93dB SNR) are essential for accurate measurement of physiological signals like ECG, EEG, and blood pressure. The device's small 28-SSOP package is ideal for compact medical devices. The SPI interface allows easy integration with medical-grade microcontrollers. The wide input range supports various sensor outputs, and the internal reference reduces external component count, improving reliability. The device's low power consumption is critical for battery-powered portable medical devices. The -40Β°C to +85Β°C temperature range ensures operation in clinical environments.
Recommended
Test and Measurement Equipment
The ADS8519IDBR is a key component in test and measurement equipment such as digital multimeters, oscilloscopes, and spectrum analyzers. Its 16-bit resolution and 250kSPS sampling rate enable accurate and fast measurements. The device's high SNR (93dB) ensures precise signal analysis, while the low INL (Β±1.5LSB) maintains linearity across the input range. The SPI interface with daisy-chain allows synchronization of multiple channels. The internal reference provides a stable conversion reference, reducing calibration requirements. The device's wide input range options (8.192V, Β±5V, Β±10V) accommodate various signal amplitudes. The compact SSOP package is suitable for benchtop and portable instruments.
Recommended
Power Monitoring
The ADS8519IDBR can be used in power monitoring systems to digitize voltage and current waveforms for analysis and protection. Its 16-bit resolution and 250kSPS sampling rate allow accurate measurement of power quality parameters such as harmonics and transients. The wide input range (Β±10V) can directly interface with voltage and current transducers. The SPI interface enables communication with power management controllers. The device's low power dissipation is beneficial for energy-efficient designs. The internal reference ensures stable conversion over temperature, which is critical for accurate power measurement. The device's industrial temperature range makes it suitable for power distribution equipment.
Recommended
Audio Test Equipment
The ADS8519IDBR is suitable for audio test equipment that requires high-resolution analog-to-digital conversion for measuring audio signals. Its 16-bit resolution and 93dB SNR provide accurate representation of audio waveforms, making it ideal for audio analyzers and distortion meters. The device's sampling rate of 250kSPS is sufficient for audio frequencies up to 100kHz. The SPI interface allows easy integration with digital signal processors. The wide input range options can accommodate line-level and microphone-level signals. The low power dissipation is beneficial for portable audio testers. The device's compact package is suitable for handheld instruments.
Recommended
Recommended Products Summary
Engineering reference data for ADS8519IDBR β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ADS8519IDBRG4 | ADS7809PB | ADS8508IDB |
|---|---|---|---|---|
| Package | 28-SSOP (DB) | 28-SSOP (DB) | 28-SSOP (DB) | 28-SSOP (DB) |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Resolution | 16 bits | 16 bits | 16 bits | 12 bits |
| Sampling Rate | 250 kSPS | 250 kSPS | 100 kSPS | 250 kSPS |
| Input Ranges | 8.192V, Β±5V, Β±10V | 8.192V, Β±5V, Β±10V | Β±10V, Β±5V, 0-5V | Β±10V, Β±5V, 0-5V |
| SNR | 93 dB | 93 dB | 90 dB | 72 dB |
| Internal Reference | Yes (4.096V) | Yes (4.096V) | No | No |
| Interface | SPI with daisy-chain | SPI with daisy-chain | Parallel | Parallel |
Key Differentiators
- Higher sampling rate than ADS7809 (vs ADS7809PB)
- Internal reference simplifies design (vs ADS7809PB)
- Higher resolution than ADS8508 (vs ADS8508IDB)
Design Notes
Decouple the AVDD and DVDD pins with 0.1Β΅F and 10Β΅F capacitors placed as close to the pins as possible. The analog and digital supplies should be separated to minimize noise coupling. Use a low-impedance ground plane and avoid routing digital signals near the analog input.
For optimal performance, use a solid analog ground plane and a separate digital ground plane, connected at a single point. Place the reference bypass capacitor (10Β΅F) close to the REF pin. Keep the analog input trace short and shielded to reduce noise pickup.
Ensure the input signal is within the selected input range to avoid clipping. The RANGE pin selects the input range; verify the correct setting for your application. Also, the internal reference requires a 10Β΅F bypass capacitor for stability; omitting it can cause conversion errors.
Compliance Information
RoHS compliant per TI product page. Not AEC-Q100 qualified.
