Overview
The AD7687BCPZ-R2 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, 16-bit sampling ADC with no missing codes, an internal conversion clock, and a versatile serial interface port. The ADC also includes a low noise, wide bandwidth, short aperture delay track-and-hold circuit. The device is designed for various applications requiring high precision and low power consumption.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 16 bits |
| Sampling Rate | 100 kSPS, 250 kSPS, 500 kSPS |
| Analog Input Range | ±VREF (0 V to VREF) |
| Power Supply | 2.3 V to 5.5 V |
| Logic Interface | 1.8 V, 2.5 V, 3 V, 5 V |
| Power Dissipation | 1.35 mW at 2.5 V/100 kSPS, 4 mW at 5 V/100 kSPS, 1.4 μW at 2.5 V/100 SPS |
| Standby Current | 1 nA |
| Operating Temperature | −40°C to +85°C |
| Package Type | 10-lead MSOP, 10-lead LFCSP |
Key Features
- No pipeline delay
- True differential analog input range ±VREF (0 V to VREF)
- Proprietary serial interface: SPI/QSPI™/MICROWIRE/DSP compatible
- Daisy-chain multiple ADCs and BUSY indicator
- Low noise, wide bandwidth, short aperture delay track-and-hold circuit
- Pin-for-pin compatible with AD7685, AD7686, and AD7688
Applications
- Battery-powered equipment
- Data acquisitions
- Instrumentation
- Medical instruments
- Process controls
Q & A
- What is the resolution of the AD7687BCPZ-R2 ADC? The AD7687BCPZ-R2 has a resolution of 16 bits.
- What are the sampling rates available for the AD7687BCPZ-R2? The sampling rates available are 100 kSPS, 250 kSPS, and 500 kSPS.
- What is the analog input range of the AD7687BCPZ-R2? The analog input range is ±VREF (0 V to VREF).
- What are the power supply options for the AD7687BCPZ-R2? The device operates from a single power supply, VDD, ranging from 2.3 V to 5.5 V.
- What logic interface voltages are supported by the AD7687BCPZ-R2? The device supports 1.8 V, 2.5 V, 3 V, and 5 V logic interfaces.
- How much power does the AD7687BCPZ-R2 consume? The power dissipation is 1.35 mW at 2.5 V/100 kSPS, 4 mW at 5 V/100 kSPS, and 1.4 μW at 2.5 V/100 SPS.
- What is the standby current of the AD7687BCPZ-R2? The standby current is 1 nA.
- What are the operating temperature ranges for the AD7687BCPZ-R2? The device operates from −40°C to +85°C.
- In what packages is the AD7687BCPZ-R2 available? The device is available in 10-lead MSOP and 10-lead LFCSP packages.
- Is the AD7687BCPZ-R2 compatible with other ADC models? Yes, it is pin-for-pin compatible with AD7685, AD7686, and AD7688.
