ADS8598SIPMR

The ADS8598S device is an 8-channel integrated data acquisition (DAQ) system based on an 18-bit successive approximation register (SAR) analog-to-digital converter (ADC). All input channels are sampled simultaneously to achieve a maximum throughput of 200 kSPS per channel. Each channel of the device has a complete analog front end (AFE), which includes a programmable gain amplifier (PGA) with an input impedance of up to 1 MΩ, input clamps, a low-pass filter, and an ADC input driver. In addition, the device also has a buffered, low-drift, high-precision reference voltage for driving the ADC. With a flexible digital interface, the device supports serial, parallel, and parallel byte communications, making it suitable for a variety of host controllers. The ADS8598S operates from a single 5V power supply and can be configured to accept ±10V or ±5V true bipolar inputs. The high input impedance allows direct connection to sensors and transformers, eliminating the need for external driver circuits. This device can achieve high performance, high precision, and zero-latency conversion, so the ADS8598S is also well-suited for industrial automation and control applications.

Applications

• Power grid monitoring
• Protection relays
• Multi-phase motor control
• Industrial automation and control multi-channel data acquisition systems

Key features

• 18-bit ADC synchronous sampling with integrated analog front end
• 8-channel pin-programmable bipolar inputs: ±10V and ±5V
• High input impedance: 1MΩ
• 5V analog supply; 2.3V to 5V I/O supply
• 9kV ESD overvoltage input clamp
• Low temperature drift on-chip reference (2.5V) and buffer
• Maximum throughput of 200kSPS across all channels
• DNL: ±0.5LSB (typical); INL: ±2.0LSB (typical)
• SNR: 94dB (typical); THD: −109dB (typical)
• Maximum offset drift: 3ppm/°C
• Gain drift: 6ppm/°C
• On-chip digital filter for oversampling
• Flexible parallel, byte, and serial interfaces
• Temperature range: −40°C to +125°C
• Package: Low-profile Quad Flat Package (LQFP)-64