Overview
The AD7689CCPZ is a 16-bit, 8-channel analog-to-digital converter (ADC) produced by Analog Devices Inc. It is part of the PulSAR (Successive Approximation Register) ADC family, known for its high precision and low power consumption. This ADC operates from a single power supply and is designed for use in multichannel, low power data acquisition systems. The device features a true 16-bit SAR ADC with no missing codes, a low crosstalk multiplexer, an internal low drift reference, a temperature sensor, and a selectable one-pole filter. It also includes a sequencer for continuous channel scanning.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 16 | Bits |
| Number of Channels | 8 | - |
| Throughput | 250 kSPS (VDD = 4.5 V to 5.5 V) 200 kSPS (VDD = 2.3 V to 4.5 V) | kSPS |
| Analog Input Voltage Range (Unipolar) | 0 to +VREF | V |
| Analog Input Voltage Range (Bipolar) | -VREF/2 to +VREF/2 | V |
| Internal Reference | Selectable 2.5 V or 4.096 V | V |
| Temperature Range | -40°C to +85°C (standard) -40°C to +125°C (extended temperature range) | °C |
| Package | 20-lead LFCSP (4mm x 4mm x 0.85mm w/EP) | - |
Key Features
- 16-bit resolution with no missing codes
- 8-channel low crosstalk multiplexer with options for single-ended, differential, or bipolar inputs
- Internal low drift reference (selectable 2.5 V or 4.096 V) and buffer
- Temperature sensor
- 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
- Data acquisition systems
- Instrumentation
- Process control
- Seismic data acquisition systems
- Power line monitoring
- Mobile communications, including GPS
Q & A
- What is the resolution of the AD7689CCPZ?
The AD7689CCPZ has a 16-bit resolution with no missing codes. - How many channels does the AD7689CCPZ have?
The AD7689CCPZ has 8 channels. - What are the throughput rates of the AD7689CCPZ?
The throughput rates are 250 kSPS for VDD = 4.5 V to 5.5 V and 200 kSPS for VDD = 2.3 V to 4.5 V. - What are the input voltage ranges for the AD7689CCPZ?
The input voltage ranges are 0 to +VREF for unipolar mode and -VREF/2 to +VREF/2 for bipolar mode. - Does the AD7689CCPZ have an internal reference?
Yes, it has a selectable internal reference of 2.5 V or 4.096 V. - What is the operating temperature range of the AD7689CCPZ?
The standard operating temperature range is -40°C to +85°C, and there is an extended temperature range model up to +125°C. - What type of package does the AD7689CCPZ come in?
The AD7689CCPZ comes in a 20-lead LFCSP (4mm x 4mm x 0.85mm w/EP) package. - What interface does the AD7689CCPZ use for configuration and data transfer?
The AD7689CCPZ uses a simple serial port interface (SPI). - What are some typical applications of the AD7689CCPZ?
Typical applications include data acquisition systems, instrumentation, process control, seismic data acquisition systems, power line monitoring, and mobile communications. - Is there an evaluation kit available for the AD7689CCPZ?
Yes, the EVAL-AD7689EDZ is a fully featured evaluation kit available for the AD7689CCPZ.
