Overview
The AD7927WYRUZ-REEL7 is a 12-bit, 8-channel, successive approximation register (SAR) analog-to-digital converter (ADC) produced by Analog Devices Inc. This component is designed for high-throughput applications with low power consumption, making it suitable for a variety of data acquisition systems. The AD7927 features a channel sequencer that allows for the preprogrammed selection and sequential conversion of its eight single-ended analog input channels.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12 bits |
| Number of Channels | 8 single-ended analog inputs |
| Conversion Rate | Up to 200 kSPS |
| Analog Input Range | 0 V to REFIN or 0 V to 2 × REFIN |
| Reference Input | External reference, 2.5 V ±1% |
| Power Supply Range | 2.7 V to 5.25 V |
| Current Consumption | 1.2 mA (3 V), 1.5 mA (5 V) at maximum throughput |
| Package Type | 20-Lead TSSOP |
| Operating Temperature Range | -40°C to +125°C |
Key Features
- High throughput with low power consumption, achieving up to 200 kSPS conversion rates while dissipating only 3.6 mW of power at maximum throughput with 3 V supplies.
- Eight single-ended analog input channels with a built-in channel sequencer, allowing for preprogrammed and sequential conversion of channels.
- Flexible analog input range selection: 0 V to REFIN or 0 V to 2 × REFIN, with options for straight binary or twos complement output coding.
- External reference input with a voltage range of 2.5 V ±1% for specified performance.
- Low power consumption: 1.2 mA at 3 V and 1.5 mA at 5 V supplies.
Applications
- Data acquisition systems requiring high-speed and low-power conversion.
- Industrial control and automation systems.
- Medical devices and diagnostic equipment.
- Aerospace and defense applications where high reliability and performance are critical.
- Automotive systems, including sensor interfaces and control units.
Q & A
- What is the resolution of the AD7927 ADC?
The AD7927 has a resolution of 12 bits.
- How many analog input channels does the AD7927 have?
The AD7927 has eight single-ended analog input channels.
- What is the maximum conversion rate of the AD7927?
The AD7927 can achieve conversion rates up to 200 kSPS.
- What are the power supply requirements for the AD7927?
The AD7927 operates with a power supply range of 2.7 V to 5.25 V.
- How much current does the AD7927 consume at maximum throughput?
The AD7927 consumes 1.2 mA at 3 V and 1.5 mA at 5 V supplies at maximum throughput.
- What is the operating temperature range of the AD7927?
The AD7927 operates over a temperature range of -40°C to +125°C.
- Can the AD7927 be configured for different analog input ranges?
Yes, the AD7927 can be configured for analog input ranges of 0 V to REFIN or 0 V to 2 × REFIN.
- Does the AD7927 require an external reference voltage?
Yes, the AD7927 requires an external reference voltage with a range of 2.5 V ±1% for specified performance.
- What is the package type of the AD7927WYRUZ-REEL7?
The AD7927WYRUZ-REEL7 comes in a 20-Lead TSSOP package.
- How does the channel sequencer work in the AD7927?
The channel sequencer allows for the preprogrammed selection and sequential conversion of the eight analog input channels. It can be programmed to cycle through two sequences of channels with each consecutive conversion.
