Overview
The AD7264BSTZ-5 is a high-performance, dual-channel, 14-bit analog-to-digital converter (ADC) manufactured by Analog Devices Inc. This device is designed for high-speed, low-power applications and features simultaneous sampling and conversion of two channels. It operates from a single 5 V power supply and is available in 48-lead LFCSP and LQFP packages. The AD7264BSTZ-5 is ideal for monitoring small amplitude signals from various sensors and is widely used in motor control systems and other applications requiring precise analog-to-digital conversion.
Key Specifications
| Parameter | Value | Unit | Comments |
|---|---|---|---|
| Number of Bits | 14 | ||
| Number of A/D Converters | 2 | ||
| Sampling Rate | Up to 1 MSPS per ADC | ||
| 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 | dB | |
| Supply Voltage | 5 V (Analog), 2.7 V to 5.25 V (Digital) | V | |
| Operating Temperature | -40°C to +105°C | °C | |
| Package Type | 48-lead LFCSP and LQFP | ||
| Reference Type | Internal (2.5 V), External | ||
| Gain Settings | 1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 128 |
Key Features
- Dual, 14-bit, high-speed, low-power successive approximation ADC.
- Simultaneous sampling and conversion of two channels.
- True differential analog inputs with programmable gain amplifier (PGA) having 14 gain settings.
- On-chip 2.5 V reference that can be disabled for external reference use.
- Four on-chip comparators with low power and fast propagation delays.
- Device offset and system gain calibration.
- High-speed serial interface compatible with SPI, QSPI, MICROWIRE, and DSP.
- Operating temperature range of -40°C to +105°C.
Applications
The AD7264BSTZ-5 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 precise analog-to-digital conversion.
- Aerospace and defense applications where high accuracy and reliability are critical.
Q & A
- What is the resolution of the AD7264BSTZ-5 ADC?
The AD7264BSTZ-5 has a resolution of 14 bits.
- How many channels does the AD7264BSTZ-5 support?
The AD7264BSTZ-5 supports two channels with simultaneous sampling and conversion.
- What is the maximum sampling rate of the AD7264BSTZ-5?
The maximum sampling rate is up to 1 MSPS per ADC.
- What are the available gain settings for the PGA in the AD7264BSTZ-5?
The PGA has 14 gain settings: 1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, and 128.
- Does the AD7264BSTZ-5 have an on-chip reference voltage?
Yes, the AD7264BSTZ-5 has an on-chip 2.5 V reference that can be disabled for external reference use.
- What is the operating temperature range of the AD7264BSTZ-5?
The operating temperature range is -40°C to +105°C.
- What types of packages are available for the AD7264BSTZ-5?
The AD7264BSTZ-5 is available in 48-lead LFCSP and LQFP packages.
- Is the AD7264BSTZ-5 compatible with any specific serial interfaces?
Yes, it is compatible with SPI, QSPI, MICROWIRE, and DSP serial interfaces.
- Does the AD7264BSTZ-5 have any calibration features?
Yes, it features device offset and system gain calibration.
- How many comparators does the AD7264BSTZ-5 have?
The AD7264BSTZ-5 has four on-chip comparators.
