Overview
The AD7685BCPZRL7 is a 16-bit, charge redistribution successive approximation analog-to-digital converter (ADC) produced by Analog Devices Inc. This device operates from a single power supply, VDD, ranging from 2.3 V to 5.5 V. It features a low power, high speed ADC with no missing codes, an internal conversion clock, and a versatile SPI-compatible serial interface. The ADC includes a low noise, wide bandwidth, short aperture delay track-and-hold circuit, enabling precise analog input sampling.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 16 bits |
| Sampling Rate | 250 kSPS |
| Power Supply (VDD) | 2.3 V to 5.5 V |
| Logic Supply (VIO) | 1.8 V, 2.5 V, 3 V, or 5 V |
| Operating Temperature | −40°C to +85°C |
| Package Type | 10-Lead LFCSP (3mm x 3mm) |
| Analog Input Range | 0 V to REF with respect to IN− |
| Interface | SPI-compatible serial interface |
Key Features
- Low power consumption with power dissipation scaling linearly with throughput.
- High speed operation with a sampling rate of 250 kSPS.
- No missing codes in the ADC conversion.
- Internal conversion clock and versatile SPI-compatible serial interface.
- Low noise, wide bandwidth, short aperture delay track-and-hold circuit.
- Ability to daisy chain several ADCs on a single 3-wire bus or use an optional BUSY indicator.
- Compatible with various logic supply voltages (1.8 V, 2.5 V, 3 V, or 5 V).
Applications
The AD7685BCPZRL7 is suitable for a variety of applications that require high precision and low power consumption, such as:
- Industrial process control and automation.
- Medical devices, including diagnostic equipment and patient monitoring systems.
- Aerospace and defense systems requiring high reliability and precision.
- Automotive systems, including sensor interfaces and data acquisition.
- Test and measurement equipment.
Q & A
- What is the resolution of the AD7685BCPZRL7 ADC?
The AD7685BCPZRL7 has a resolution of 16 bits.
- What is the sampling rate of the AD7685BCPZRL7?
The sampling rate is 250 kSPS.
- What is the power supply range for the AD7685BCPZRL7?
The power supply range is from 2.3 V to 5.5 V.
- What types of logic supply voltages is the AD7685BCPZRL7 compatible with?
The device is compatible with 1.8 V, 2.5 V, 3 V, or 5 V logic supply voltages.
- What is the operating temperature range of the AD7685BCPZRL7?
The operating temperature range is from −40°C to +85°C.
- What type of package does the AD7685BCPZRL7 come in?
The device is housed in a 10-Lead LFCSP (3mm x 3mm) package.
- Does the AD7685BCPZRL7 have any missing codes in its conversion?
No, the AD7685BCPZRL7 has no missing codes in its conversion.
- Can multiple AD7685BCPZRL7 ADCs be daisy-chained?
Yes, multiple ADCs can be daisy-chained on a single 3-wire bus.
- What is the purpose of the track-and-hold circuit in the AD7685BCPZRL7?
The track-and-hold circuit is designed for low noise, wide bandwidth, and short aperture delay to precisely sample analog inputs.
- How does the power dissipation of the AD7685BCPZRL7 scale?
The power dissipation scales linearly with throughput.
