Overview
The ADS8556IPM, produced by Texas Instruments, is a member of the ADS855x family of analog-to-digital converters (ADCs). This device features six low-power, successive approximation register (SAR) based ADCs with true bipolar inputs. Each channel includes a sample-and-hold circuit, enabling simultaneous high-speed multi-channel signal acquisition. The ADS8556IPM is designed for high-performance applications requiring precise and efficient analog-to-digital conversion across a wide range of input voltages and operating temperatures.
Key Specifications
| Specification | Value |
|---|---|
| Number of Channels | 6 |
| Resolution | 16-bit, 14-bit, 12-bit |
| Data Rate (Internal Clock and Reference) | Up to 630 kSPS (Parallel), 450 kSPS (Serial) |
| Data Rate (External Clock and Reference) | Up to 800 kSPS (Parallel), 530 kSPS (Serial) |
| Input Voltage Range | Pin-selectable or programmable up to ±12 V |
| Signal-to-Noise Ratio (SNR) | 91.5 dB |
| Internal Reference Voltage | Programmable and buffered: 0.5 V to 2.5 V and 0.5 V to 3.0 V |
| Operating Temperature Range | -40°C to 125°C |
| Package Type | LQFP-64 |
| Interface Options | Selectable parallel or serial interface |
Key Features
- Family of 16-, 14-, and 12-bit, pin- and software-compatible ADCs.
- Six SAR ADCs grouped in three pairs.
- Excellent signal-to-noise performance with an SNR of 91.5 dB.
- Programmable and buffered internal reference voltage: 0.5 V to 2.5 V and 0.5 V to 3.0 V.
- Comprehensive power-down modes: deep power-down (standby mode), partial power-down, and auto-nap power-down.
- Selectable parallel or serial interface with configurable bus width.
- True bipolar inputs with sample-and-hold circuits for simultaneous high-speed multi-channel signal acquisition.
Applications
The ADS8556IPM is suitable for a variety of high-performance applications, including:
- Industrial automation and control systems.
- Medical devices requiring precise analog-to-digital conversion.
- Aerospace and defense systems where robust and reliable ADCs are crucial.
- Automotive systems, particularly those requiring high-speed data acquisition.
- Test and measurement equipment where accuracy and speed are essential.
Q & A
- What is the maximum data rate of the ADS8556IPM with an internal conversion clock and reference?
The maximum data rate is up to 630 kSPS in parallel mode and 450 kSPS in serial mode. - What is the input voltage range of the ADS8556IPM?
The input voltage range is pin-selectable or programmable up to ±12 V. - What are the power-down modes available in the ADS8556IPM?
The device features deep power-down (standby mode), partial power-down, and auto-nap power-down. - What is the operating temperature range of the ADS8556IPM?
The operating temperature range is -40°C to 125°C. - What types of interfaces are supported by the ADS8556IPM?
The device supports selectable parallel or serial interfaces. - How many channels does the ADS8556IPM have?
The device has six channels. - What is the resolution of the ADS8556IPM?
The resolution is 16-bit, 14-bit, or 12-bit. - What is the signal-to-noise ratio (SNR) of the ADS8556IPM?
The SNR is 91.5 dB. - What is the package type of the ADS8556IPM?
The package type is LQFP-64. - Can the internal reference voltage of the ADS8556IPM be programmed?
Yes, the internal reference voltage is programmable and buffered: 0.5 V to 2.5 V and 0.5 V to 3.0 V.
