Overview
The ADS8598H device, produced by Texas Instruments, is an 8-channel, integrated data acquisition (DAQ) system based on a 18-bit successive approximation (SAR) analog-to-digital converter (ADC). This device is designed to provide high-performance and accurate data acquisition, featuring a complete analog front-end (AFE) for each channel. It supports simultaneous sampling of all 8 channels, achieving a maximum throughput of 500 kSPS per channel. The ADS8598H is particularly suited for industrial automation and control applications due to its high input impedance, low-drift precision reference, and flexible digital interface options.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 18 bits |
| Number of Channels | 8 |
| Sampling Rate | Up to 500 kSPS per channel |
| Input Range | ±10 V and ±5 V (pin-programmable) |
| Input Impedance | 1 MΩ |
| Analog Supply Voltage | 5 V (2.3 V to 5 V I/O supply) |
| Operating Temperature Range | –40°C to +125°C |
| Package Type | LQFP-64 |
| DNL (Typ) | ±0.5 LSB |
| INL (Typ) | ±2.0 LSB |
| SNR (Typ) | 94 dB |
| THD (Typ) | –109 dB |
| Max Offset Drift | 3 ppm/°C |
| Gain Drift | 6 ppm/°C |
Key Features
- 18-bit ADC with integrated analog front-end (AFE) for each channel.
- Simultaneous sampling of all 8 channels.
- Pin-programmable bipolar inputs: ±10 V and ±5 V.
- High input impedance: 1 MΩ.
- Overvoltage input clamp with 9-kV ESD protection.
- Low-drift, on-chip reference (2.5 V) and buffer.
- On-chip digital filter for oversampling.
- Flexible parallel, byte, and serial interface options.
- Zero-latency conversions.
Applications
The ADS8598H is highly suitable for various industrial automation and control applications. Its high performance, accuracy, and flexibility make it ideal for use in data acquisition systems, industrial control systems, and other applications requiring precise and simultaneous sampling of multiple analog inputs.
Q & A
- What is the resolution of the ADS8598H ADC?
The ADS8598H has a resolution of 18 bits. - How many channels does the ADS8598H support?
The ADS8598H supports 8 channels. - What is the maximum sampling rate of the ADS8598H?
The maximum sampling rate is up to 500 kSPS per channel. - What are the input voltage ranges for the ADS8598H?
The input voltage ranges are ±10 V and ±5 V, which are pin-programmable. - What is the input impedance of the ADS8598H?
The input impedance is 1 MΩ. - What is the operating temperature range of the ADS8598H?
The operating temperature range is –40°C to +125°C. - What type of package does the ADS8598H come in?
The ADS8598H comes in an LQFP-64 package. - Does the ADS8598H have ESD protection?
Yes, it has overvoltage input clamp with 9-kV ESD protection. - What types of digital interfaces does the ADS8598H support?
The ADS8598H supports parallel, byte, and serial interface options. - Is the ADS8598H suitable for industrial automation applications?
Yes, it is highly suitable for industrial automation and control applications due to its high performance and accuracy.
