Overview
The AD1671KQ is a high-performance, monolithic 12-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This device integrates a high-speed sample-and-hold amplifier (SHA) and a voltage reference, making it suitable for a wide range of applications requiring precise and rapid analog-to-digital conversion. The AD1671KQ is built using Analog Devices' ABCMOS-1 process, which combines high-speed bipolar and 2-micron CMOS technologies on a single chip, ensuring superior speed and power efficiency compared to hybrid implementations.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 12 bits |
| Sampling Rate | 1.25 MSPS |
| Input Type | Single-ended |
| Package Type | 28-lead CerDIP |
| Operating Temperature Range | 0°C to +70°C (J and K grades), -40°C to +85°C (A grade), -55°C to +125°C (S grade) |
| Reference | On-board voltage reference with reference output and input pins |
| Output Format | Twos complement or offset binary |
| Power Consumption | Low power CMOS logic sections |
Key Features
- High-speed sample-and-hold amplifier (SHA) suitable for multiplexed systems and high-frequency sampling.
- No missing codes over the full operating temperature range.
- On-board voltage reference with both reference output and input pins for system flexibility.
- Subranging flash conversion technique with digital error correction.
- On-chip timing generator for internal flash cycles.
- Digital output in twos complement or offset binary format with out-of-range signal indication.
- Laser trimmed thin-film resistors for accuracy and temperature stability.
Applications
The AD1671KQ is versatile and can be used in various applications, including:
- High-speed data acquisition systems.
- Multiplexed systems that require rapid switching between channels.
- Medical imaging and diagnostic equipment.
- Aerospace and defense systems requiring high reliability and wide temperature ranges.
- Industrial control and automation systems.
Q & A
- What is the resolution of the AD1671KQ?
The AD1671KQ has a resolution of 12 bits. - What is the sampling rate of the AD1671KQ?
The sampling rate is 1.25 MSPS. - What type of package does the AD1671KQ come in?
The AD1671KQ comes in a 28-lead CerDIP package. - What are the operating temperature ranges for the AD1671KQ?
The operating temperature ranges are 0°C to +70°C (J and K grades), -40°C to +85°C (A grade), and -55°C to +125°C (S grade). - Does the AD1671KQ have an on-board voltage reference?
Yes, the AD1671KQ has an on-board voltage reference with both reference output and input pins. - What output formats are available for the AD1671KQ?
The digital output is available in twos complement or offset binary format. - How does the AD1671KQ handle errors in the conversion cycle?
The AD1671KQ uses digital error correction for possible errors introduced in the first part of the conversion cycle. - What is the significance of the ABCMOS-1 process used in the AD1671KQ?
The ABCMOS-1 process combines high-speed bipolar and 2-micron CMOS technologies, ensuring superior speed and power efficiency. - Can the AD1671KQ be used in multiplexed systems?
Yes, the fast settling input SHA is equally suited for multiplexed systems that switch negative to positive full-scale voltage levels in successive channels. - What is the advantage of using laser trimmed thin-film resistors in the AD1671KQ?
Laser trimmed thin-film resistors provide accuracy and temperature stability.
