Overview
The AD7682BCPZRL7 is a 16-bit, 4-channel analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is part of the AD7682/AD7689 family, which features charge redistribution successive approximation register (SAR) architecture. The AD7682 is designed for multi-channel, low-power data acquisition systems and operates from a single power supply, VDD. It includes a true 16-bit SAR ADC with no missing codes, a 4-channel low crosstalk multiplexer, an internal low drift reference, a temperature sensor, and a selectable one-pole filter.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 16 | Bits |
| Number of Channels | 4 | - |
| Throughput | 250 kSPS (VDD = 4.5 V to 5.5 V) 200 kSPS (VDD = 2.3 V to 4.5 V) | kSPS |
| Integral Nonlinearity (INL) | ±0.4 LSB (typical), ±1.5 LSB (maximum) | LSB |
| Dynamic Range | 93.8 dB | dB |
| Analog Input Voltage Range | 0 to +VREF (unipolar mode) -VREF/2 to +VREF/2 (bipolar mode) | V |
| Input Impedance | - | - |
| Operating Temperature Range | -40°C to +85°C | °C |
| Package Type | 20-Lead LFCSP (4mm x 4mm w/ EP) | - |
Key Features
- True 16-bit SAR ADC with no missing codes
- 4-channel low crosstalk multiplexer with configurable inputs (single-ended, differential, bipolar)
- Internal low drift reference (selectable 2.5 V or 4.096 V) and buffer
- Temperature sensor and selectable one-pole filter
- Sequencer for continuous channel scanning
- Simple serial port interface (SPI) for configuration and data transfer
- Low power consumption with power dissipation scaling with throughput
Applications
- Mobile communications: GPS
- Power line monitoring
- Data acquisition systems
- Seismic data acquisition systems
- Instrumentation
- Process control
Q & A
- What is the resolution of the AD7682BCPZRL7 ADC?
The AD7682BCPZRL7 has a 16-bit resolution.
- How many channels does the AD7682BCPZRL7 support?
The AD7682BCPZRL7 supports 4 channels.
- What is the maximum throughput of the AD7682BCPZRL7?
The maximum throughput is 250 kSPS when VDD is between 4.5 V and 5.5 V, and 200 kSPS when VDD is between 2.3 V and 4.5 V.
- What are the input voltage ranges for the AD7682BCPZRL7?
The input voltage range is 0 to +VREF in unipolar mode and -VREF/2 to +VREF/2 in bipolar mode.
- What is the operating temperature range of the AD7682BCPZRL7?
The operating temperature range is -40°C to +85°C.
- What type of package does the AD7682BCPZRL7 come in?
The AD7682BCPZRL7 comes in a 20-Lead LFCSP (4mm x 4mm w/ EP) package.
- Does the AD7682BCPZRL7 have an internal reference and temperature sensor?
Yes, it includes an internal low drift reference (selectable 2.5 V or 4.096 V) and a temperature sensor.
- What interface does the AD7682BCPZRL7 use for communication?
The AD7682BCPZRL7 uses a simple serial port interface (SPI) for writing to the configuration register and receiving conversion results.
- What are some typical applications of the AD7682BCPZRL7?
Typical applications include mobile communications (GPS), power line monitoring, data acquisition systems, seismic data acquisition systems, instrumentation, and process control.
- Is the AD7682BCPZRL7 suitable for low-power data acquisition systems?
Yes, the AD7682BCPZRL7 is designed for multi-channel, low-power data acquisition systems.
