ADS8320-HT - 16-Bit 100kSPS SAR ADC | TI | High-Temp
MPN: ADS8320-HT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $25 | $25.00 |
| 10 | $22.5 | $225.00 |
| 100 | $20 | $2,000.00 |
| 500 | $18 | $9,000.00 |
| 1,000 | $16 | $16,000.00 |
Drop-in alternatives for ADS8320-HT — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
ADS8320SHKQ
✅ Drop-In📋 Reference alternative (not in catalog)
ADS8320-HT Maximum Ratings & Electrical Characteristics
| Resolution | 16 bits |
| Sampling Rate | 100 kSPS |
| Input Type | Differential |
| Supply Voltage Range | 2.7 V to 5.25 V |
| Reference Voltage Range | 0.5 V to VCC |
| Interface | SPI/SSI compatible |
| Package | 8-pin ceramic surface-mount (CFP) |
| Operating Temperature Range | -55°C to 210°C |
| Power Consumption | Very low (micropower) |
| Number of Inputs | 1 |
| Architecture | SAR |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| MSL Level | [DATA_NEEDED: MSL Level] |
| Signal-to-Noise Ratio | [DATA_NEEDED: SNR] |
ADS8320-HT Pin Configuration
| Pin 1 | VREF — Reference voltage input |
| Pin 2 | IN+ — Positive differential input |
| Pin 3 | IN- — Negative differential input |
| Pin 4 | GND — Ground |
| Pin 5 | CS — Chip select (active low) |
| Pin 6 | DIN — Serial data input (for configuration) |
| Pin 7 | DOUT — Serial data output |
| Pin 8 | VCC — Power supply |
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
ADS8320-HT is suitable for 6 applications: Downhole Drilling, Engine Control Units, Industrial Process Monitoring, Aerospace Systems, Portable Instrumentation, High-Temperature Data Acquisition.
Downhole Drilling
The ADS8320-HT is ideal for downhole drilling applications where temperatures can exceed 200°C. Its 16-bit resolution and 100 kSPS sampling rate enable accurate measurement of pressure, temperature, and vibration. The differential input rejects common-mode noise from long cable runs, and the SPI interface allows easy integration with downhole telemetry systems. The ceramic package ensures reliable operation in the harsh environment.
Recommended
Engine Control Units
In automotive and aerospace engine control, the ADS8320-HT provides precise analog-to-digital conversion of sensor signals such as exhaust gas temperature and cylinder pressure. Its wide supply range (2.7V to 5.25V) allows direct connection to existing power rails. The high-temperature rating ensures reliable operation near the engine block. The low power consumption minimizes heat generation, and the small ceramic package fits in space-constrained modules.
Recommended
Industrial Process Monitoring
The ADS8320-HT is suitable for industrial process monitoring in high-temperature environments such as glass manufacturing, metal smelting, and chemical reactors. Its 16-bit resolution provides high accuracy for pressure and flow transducers. The differential input helps reject electrical noise from industrial machinery. The SPI interface simplifies connection to PLCs and industrial controllers. The device's low power consumption is beneficial for remote monitoring stations.
Recommended
Aerospace Systems
In aerospace applications, the ADS8320-HT can be used for engine monitoring, flight control systems, and environmental control. Its ability to operate from -55°C to 210°C covers the extreme temperature variations experienced in flight. The ceramic package provides hermetic sealing and resistance to vibration. The low power consumption is critical for satellite and UAV systems where power is limited. The SPI interface allows direct connection to flight computers.
Recommended
Portable Instrumentation
The ADS8320-HT's micropower operation makes it ideal for portable and battery-operated instruments that may be exposed to high temperatures, such as handheld thermal probes or field-test equipment. Its small ceramic package saves board space, and the wide supply range allows operation from a single lithium cell. The SPI interface is compatible with low-power microcontrollers. The high-temperature rating ensures the device can withstand harsh field conditions.
Recommended
High-Temperature Data Acquisition
The ADS8320-HT is specifically designed for high-temperature data acquisition systems, such as those used in geothermal energy exploration and oil well logging. Its 16-bit resolution ensures accurate measurement of analog signals, and the 100 kSPS sampling rate captures fast transients. The differential input allows direct connection to bridge sensors. The ceramic package and high-temperature rating ensure long-term reliability in extreme environments.
Recommended
Recommended Products Summary
Engineering reference data for ADS8320-HT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ADS8320 | ADS8320SHKQ | ADS8320E/2K5 |
|---|---|---|---|---|
| Package | 8-CFP (ceramic) | 8-VSSOP | 8-CFP (ceramic) | 8-VSSOP |
| Temperature Range | -55°C to 210°C | -40°C to 85°C | -55°C to 210°C | -40°C to 85°C |
| Resolution | 16 bits | 16 bits | 16 bits | 16 bits |
| Sampling Rate | 100 kSPS | 100 kSPS | 100 kSPS | 100 kSPS |
| Supply Voltage Range | 2.7V to 5.25V | 2.7V to 5.25V | 2.7V to 5.25V | 2.7V to 5.25V |
| Input Type | Differential | Differential | Differential | Differential |
| Interface | SPI/SSI | SPI/SSI | SPI/SSI | SPI/SSI |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
Key Differentiators
- Extended temperature range up to 210°C (vs ADS8320)
- Ceramic package for high-temperature reliability (vs ADS8320E/2K5)
- Same performance as standard ADS8320 (vs ADS8320SHKQ)
Design Notes
Ensure a clean power supply for the ADS8320-HT. Use a low-dropout regulator (LDO) such as the TLV743P to provide a stable 3.3V or 5V rail. Place a 0.1uF ceramic capacitor close to the VCC pin and a 10uF bulk capacitor nearby. The reference voltage pin (VREF) should be decoupled with a 1uF capacitor to ground to minimize noise.
For high-temperature operation, use PCB materials rated for 210°C, such as polyimide or ceramic substrates. Ensure proper thermal management by providing a thermal relief pattern under the ceramic package. Keep analog and digital grounds separate and connect them at a single point to avoid ground loops. Route the SPI lines away from high-current traces to reduce noise coupling.
Do not exceed the absolute maximum ratings for supply voltage and input pins. The reference voltage must be within 0.5V to VCC; exceeding this range can cause incorrect conversions. Ensure the SPI interface is properly configured for the correct clock polarity and phase. In high-temperature environments, verify that the solder joints and PCB traces can withstand thermal cycling.
Compliance Information
RoHS compliant per TI product page. Not AEC-Q100 qualified. Lead-free per TI's environmental data.
