Overview
The AD7264BCPZ is a dual, 14-bit, high-speed, low-power successive approximation analog-to-digital converter (ADC) produced by Analog Devices Inc. This device operates from a single 5 V power supply and features throughput rates of up to 1 million samples per second (MSPS) per on-chip ADC. It is designed for simultaneous sampling and conversion of two channels, each with a true differential analog input and a programmable gain amplifier (PGA). The AD7264BCPZ is ideal for monitoring small amplitude signals from various sensors and is particularly suited for applications in motor control systems and analog encoders.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 14 bits |
| Throughput Rate | Up to 1 MSPS per ADC |
| Supply Voltage | 5 V |
| Analog Input Impedance | >1 GΩ |
| Input Bandwidth | -3 dB bandwidth: 1.7 MHz at gain = 2 |
| Signal-to-Noise Ratio (SNR) | 78 dB typical at gain = 2, 71 dB typical at gain = 32 |
| Gain Settings | ×1, ×2, ×3, ×4, ×6, ×8, ×12, ×16, ×24, ×32, ×48, ×64, ×96, ×128 |
| Comparators | Four on-chip comparators (A, B, C, D) |
| On-chip Reference | 2.5 V (can be disabled for external reference) |
| Operating Temperature | -40°C to +105°C |
| Package | 48-lead LFCSP and LQFP |
Key Features
- Dual 14-bit ADCs for simultaneous sampling and conversion of two channels.
- True differential analog inputs with programmable gain amplifiers (PGA).
- Device offset calibration and system gain calibration.
- Four on-chip comparators with different optimization for power and speed.
- High-speed serial interface compatible with SPI, QSPI, MICROWIRE, and DSP.
- On-chip 2.5 V reference with the option to use an external reference.
- Low power consumption.
Applications
The AD7264BCPZ is ideally suited for various applications, including:
- Monitoring small amplitude signals from sensors.
- Position feedback signals from analog encoders in motor control systems.
- Industrial automation and control systems.
- Medical devices requiring high precision and low power consumption.
- Aerospace and defense systems where high reliability and performance are critical.
Q & A
- What is the resolution of the AD7264BCPZ ADC?
The AD7264BCPZ has a resolution of 14 bits. - What is the maximum throughput rate of the AD7264BCPZ?
The maximum throughput rate is up to 1 million samples per second (MSPS) per ADC. - What is the supply voltage for the AD7264BCPZ?
The supply voltage is 5 V. - What is the input impedance of the AD7264BCPZ?
The analog input impedance is greater than 1 GΩ. - How many gain settings are available on the AD7264BCPZ?
There are 14 gain settings available: ×1, ×2, ×3, ×4, ×6, ×8, ×12, ×16, ×24, ×32, ×48, ×64, ×96, and ×128. - Does the AD7264BCPZ have on-chip comparators?
Yes, it has four on-chip comparators (A, B, C, D). - What is the operating temperature range of the AD7264BCPZ?
The operating temperature range is -40°C to +105°C. - What types of packages are available for the AD7264BCPZ?
The AD7264BCPZ is available in 48-lead LFCSP and LQFP packages. - Can the AD7264BCPZ use an external reference voltage?
Yes, the on-chip 2.5 V reference can be disabled to use an external reference voltage. - What interfaces are supported by the AD7264BCPZ?
The AD7264BCPZ supports high-speed serial interfaces compatible with SPI, QSPI, MICROWIRE, and DSP.
