Overview
The ADS805E/1K, produced by Texas Instruments, is a high-performance 12-bit, pipelined Analog-to-Digital Converter (ADC) with a sampling rate of 20MHz. This converter is designed to offer high dynamic range and excellent spurious performance, making it suitable for a variety of demanding applications. The ADS805E/1K features a high-bandwidth track-and-hold circuit that minimizes harmonics and jitter, ensuring high Signal-to-Noise Ratio (SNR) and Spurious-Free Dynamic Range (SFDR) performance.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Resolution | 12 | - | - | Bits |
| Sample Rate | 10k | - | 20M | Samples/s |
| Data Latency | - | - | 6 | Clk Cycles |
| Analog Input Range (Standard) | 1.5 | - | 3.5 | V |
| Analog Input Range (Optional) | 0 | - | 5 | V |
| Power Consumption | - | - | 300 | mW |
| Differential Linearity Error (DLE) | - | - | 0.25 | LSB |
| Operating Temperature Range | -40 | - | 85 | °C |
| Package Type | - | - | SSOP-28 | - |
Key Features
- High SFDR and SNR: The ADS805E/1K offers a high Spurious-Free Dynamic Range (SFDR) of 74dB at 9.8MHz and a high Signal-to-Noise Ratio (SNR) of 68dB, ensuring excellent signal quality.
- Low Power Consumption: With a power consumption of 300mW, this ADC is energy-efficient and suitable for applications where power is a concern.
- Low Differential Linearity Error (DLE): The ADC has a low DLE of 0.25LSB, which is crucial for maintaining high accuracy in digital conversions.
- Flexible Input Range: The device supports multiple input ranges, including 1.5V to 3.5V and 0V to 5V, and can be configured for single-ended or differential inputs.
- Over-Range Indicator: An over-range flag indicates when the input signal exceeds the converter's full-scale range, helping in signal conditioning and gain adjustment.
Applications
- Studio Cameras: The high dynamic range and low noise make it ideal for high-quality imaging applications.
- IF and Baseband Digitization: Suitable for communications and signal processing applications due to its high SFDR and SNR.
- Copiers: Used in imaging and scanning technologies where high signal fidelity is required.
- Test Instrumentation: The low distortion and high SNR make it suitable for various test and measurement instruments.
Q & A
- What is the sampling rate of the ADS805E/1K?
The sampling rate of the ADS805E/1K is up to 20MHz.
- What is the resolution of the ADS805E/1K?
The resolution of the ADS805E/1K is 12 bits.
- What are the typical operating temperature ranges for the ADS805E/1K?
The operating temperature range is from -40°C to 85°C.
- What is the power consumption of the ADS805E/1K?
The power consumption is 300mW.
- What are the key applications of the ADS805E/1K?
Key applications include studio cameras, IF and baseband digitization, copiers, and test instrumentation.
- What is the significance of the over-range indicator in the ADS805E/1K?
The over-range indicator flags when the input signal exceeds the converter's full-scale range, helping in signal conditioning and gain adjustment.
- What is the package type of the ADS805E/1K?
The package type is SSOP-28.
- How does the ADS805E/1K handle differential linearity error?
The ADS805E/1K has a low differential linearity error (DLE) of 0.25LSB.
- Can the input range of the ADS805E/1K be adjusted?
Yes, the input range can be adjusted between 1.5V to 3.5V and 0V to 5V, and can be configured for single-ended or differential inputs.
- What are the benefits of the high-bandwidth track-and-hold circuit in the ADS805E/1K?
The high-bandwidth track-and-hold circuit minimizes harmonics and jitter, leading to excellent SNR and SFDR performance.
