Overview
The ADS8598SIPMR, produced by Texas Instruments, is an 18-bit, 200-kSPS, 8-channel simultaneous-sampling analog-to-digital converter (ADC) with bipolar inputs on a single supply. This device is part of an integrated data acquisition (DAQ) system, utilizing a successive approximation (SAR) ADC architecture. It features a complete analog front-end (AFE) for each channel, including a programmable gain amplifier (PGA), input clamp, low-pass filter, and an ADC input driver. The device is designed for high performance and accuracy, making it suitable for various industrial automation and control applications.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 18 bits |
| Sampling Rate | 200 kSPS per channel |
| Number of Channels | 8 channels |
| 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) |
| ESD Protection | 9-kV ESD input clamp |
| Reference Voltage | Low-drift, on-chip reference (2.5 V) with buffer |
| DNL and INL | DNL: ±0.5 LSB typ; INL: ±2.0 LSB typ |
| SNR and THD | SNR: 94 dB typ; THD: −109 dB typ |
| Offset and Gain Drift | Max offset drift: 3 ppm/°C; Gain drift: 6 ppm/°C |
| Digital Interface | Flexible parallel, byte, and serial interface |
| Temperature Range | –40°C to +125°C |
| Package | LQFP-64 |
Key Features
- Simultaneous sampling of all 8 channels to achieve a maximum throughput of 200 kSPS per channel.
- Integrated analog front-end (AFE) for each channel, including a programmable gain amplifier (PGA), input clamp, low-pass filter, and an ADC input driver.
- High input impedance of 1 MΩ, allowing direct connection with sensors and transformers without external driver circuits.
- Pin-programmable bipolar inputs: ±10 V and ±5 V using a single 5-V supply.
- Low-drift, on-chip reference (2.5 V) with a buffer to drive the ADC.
- Excellent performance metrics: DNL ±0.5 LSB typ, INL ±2.0 LSB typ, SNR 94 dB typ, and THD −109 dB typ.
- On-chip digital filter for oversampling.
- Flexible digital interface supporting serial, parallel, and parallel byte communication.
- Temperature range of –40°C to +125°C.
Applications
- Monitoring and control for power grids.
- Protection relays.
- Multi-phase motor controls.
- Industrial automation and controls.
- Multichannel data acquisition systems.
Q & A
- What is the resolution of the ADS8598SIPMR ADC?
The ADS8598SIPMR has a resolution of 18 bits.
- How many channels does the ADS8598SIPMR support?
The device supports 8 channels.
- What is the maximum sampling rate of the ADS8598SIPMR?
The maximum sampling rate is 200 kSPS per channel.
- What are the input voltage ranges for the ADS8598SIPMR?
The device can be configured to accept ±10 V or ±5 V true bipolar inputs using a single 5-V supply.
- What is the input impedance of the ADS8598SIPMR?
The input impedance is 1 MΩ.
- Does the ADS8598SIPMR have built-in ESD protection?
Yes, it features a 9-kV ESD input clamp.
- What is the temperature range of the ADS8598SIPMR?
The device operates within a temperature range of –40°C to +125°C.
- What types of digital interfaces does the ADS8598SIPMR support?
The device supports flexible parallel, byte, and serial interfaces.
- What are some typical applications of the ADS8598SIPMR?
Typical applications include monitoring and control for power grids, protection relays, multi-phase motor controls, industrial automation and controls, and multichannel data acquisition systems.
- What is the package type of the ADS8598SIPMR?
The device is packaged in a 64-pin LQFP.
