Overview
The ADS8588H, produced by Texas Instruments, is a highly integrated 16-bit analog-to-digital converter (ADC) designed for data acquisition applications. This device features an 8-channel simultaneous sampling capability, making it ideal for high-speed data acquisition systems. The ADS8588H is based on a successive approximation register (SAR) architecture and includes a complete analog front-end for each channel, comprising a programmable gain amplifier (PGA), an input clamp, a low-pass filter, and an ADC input driver. It operates on a single 5-V supply and can be configured to accept ±10-V or ±5-V true bipolar inputs.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 16-bit |
| 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) |
| ESD Protection | 9-kV ESD input clamp |
| Reference Voltage | Low-drift, on-chip reference (2.5 V) with buffer |
| DNL (Typical) | ±0.3 LSB |
| INL (Typical) | ±0.5 LSB |
| SNR (Typical) | 92.7 dB |
| THD (Typical) | −110 dB |
| Offset Drift | 3 ppm/°C |
| Gain Drift | 6 ppm/°C |
| Digital Interface | Flexible parallel, byte, and serial interface |
| Operating Temperature Range | −40°C to +125°C |
| Package | LQFP-64 |
Key Features
- 16-bit successive approximation register (SAR) ADC with integrated analog front-end.
- Simultaneous sampling of 8 channels.
- Pin-programmable bipolar inputs: ±10 V and ±5 V.
- High input impedance of 1 MΩ, allowing direct connection with sensors and transformers.
- Overvoltage input clamp with 9-kV ESD protection.
- Low-drift, on-chip reference (2.5 V) with buffer.
- Flexible digital interface supporting serial, parallel, and parallel byte communication.
- On-chip digital filter for oversampling.
- Operating temperature range: −40°C to +125°C.
Applications
- Industrial data acquisition systems.
- Protection relays.
- Power quality measurement.
- Multi-axis motor controls.
- Programmable logic controllers (PLCs).
Q & A
- What is the resolution of the ADS8588H ADC?
The ADS8588H is a 16-bit ADC.
- How many channels does the ADS8588H support?
The ADS8588H supports 8 channels with simultaneous sampling.
- What are the input voltage ranges for the ADS8588H?
The device can be configured to accept ±10 V or ±5 V true bipolar inputs.
- What is the maximum sampling rate of the ADS8588H?
The maximum sampling rate is up to 500 kSPS per channel.
- What type of digital interface does the ADS8588H support?
The device supports flexible parallel, byte, and serial interfaces.
- What is the operating temperature range of the ADS8588H?
The operating temperature range is −40°C to +125°C.
- Does the ADS8588H have built-in ESD protection?
- What is the input impedance of the ADS8588H?
The input impedance is 1 MΩ.
- Does the ADS8588H have an on-chip reference and buffer?
- What package options are available for the ADS8588H?
The device is available in a 64-pin LQFP package.
