Overview
The AD7864BSZ-1 is a high-speed, low-power, 4-channel simultaneous sampling 12-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This device operates from a single 5 V supply and is designed for applications requiring simultaneous sampling of multiple analog inputs. It features four track-and-hold amplifiers, a fast successive approximation ADC, and a high-speed parallel interface, making it suitable for various high-performance data acquisition systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Channels | 4 | |
| Resolution | 12-bit | |
| Input Voltage Range | ±10 V, ±5 V, ±2.5 V, 0 V to 2.5 V, 0 V to 5 V | V |
| Input Resistance | 9 kΩ (±10 V, ±5 V), 4.5 kΩ (±2.5 V), 9 kΩ (0 V to 5 V) | kΩ |
| Track-and-Hold Acquisition Time | 0.35 μs | μs |
| Conversion Time per Channel | 1.65 μs | μs |
| Maximum Throughput Rate (Single Channel) | 500 kSPS | kSPS |
| Maximum Throughput Rate (All Four Channels) | 130 kSPS | kSPS |
| Supply Voltage | 5 V | V |
| Typical Power Consumption | 90 mW | mW |
| Package Type | 44-Lead MQFP | |
| Operating Temperature Range | −40°C to +85°C | °C |
Key Features
- Simultaneous sampling of four analog inputs preserving relative phase information.
- High-speed parallel interface for easy connection to microprocessors, microcontrollers, and digital signal processors.
- Low power consumption with a typical power of 90 mW and a power-saving mode of 20 μW.
- Overvoltage protection on analog inputs.
- Selection of input ranges via hardware or software.
- Tight aperture delay matching between the four input sample-and-hold amplifiers.
Applications
- AC motor control.
- Uninterrupted power supplies.
- Data acquisition systems.
- Communications.
Q & A
- What is the resolution of the AD7864BSZ-1 ADC?
The AD7864BSZ-1 has a 12-bit resolution. - How many channels does the AD7864BSZ-1 support?
The AD7864BSZ-1 supports four channels. - What are the input voltage ranges for the AD7864BSZ-1?
The input voltage ranges include ±10 V, ±5 V, ±2.5 V, 0 V to 2.5 V, and 0 V to 5 V. - What is the typical power consumption of the AD7864BSZ-1?
The typical power consumption is 90 mW. - What is the maximum throughput rate for a single channel?
The maximum throughput rate for a single channel is 500 kSPS. - How does the AD7864BSZ-1 protect against overvoltage?
The AD7864BSZ-1 features overvoltage protection on analog inputs. - What is the operating temperature range of the AD7864BSZ-1?
The operating temperature range is −40°C to +85°C. - What type of package does the AD7864BSZ-1 come in?
The AD7864BSZ-1 comes in a 44-Lead MQFP package. - Can the AD7864BSZ-1 be used in low-power applications?
Yes, the AD7864BSZ-1 has a power-saving mode consuming 20 μW, making it suitable for low-power applications. - How are the channels selected for conversion in the AD7864BSZ-1?
Channels can be selected for conversion via hardware (channel select input pins) or software (programming the channel select register).
