Overview
The AD7264BSTZ-5-RL7 is a high-performance, dual-channel, 14-bit successive approximation (SAR) analog-to-digital converter (ADC) produced by Analog Devices Inc. This device operates from a single 5 V power supply and is designed for high-speed, low-power applications. It features two complete ADC functions that allow for simultaneous sampling and conversion of two channels, each preceded by a true differential analog input with a programmable gain amplifier (PGA).
Key Specifications
| Parameter | Value | Description |
|---|---|---|
| Number of Bits | 14 | Resolution of the ADC |
| Number of Channels | 2 | Dual-channel ADC |
| Sampling Rate | Up to 1 MSPS per ADC | Maximum sampling rate per channel |
| Supply Voltage | 5 V | Single supply voltage for both analog and digital sections |
| Package Type | 48-lead LQFP | Package type and pin count |
| Operating Temperature | -40°C to +105°C | Temperature range for operation |
| Input Type | Differential | Type of analog input |
| Gain Settings | ×1, ×2, ×3, ×4, ×6, ×8, ×12, ×16, ×24, ×32, ×48, ×64, ×96, ×128 | Available gain settings for the PGA |
| Reference Type | External, Internal (2.5 V) | Type of reference voltage available |
| Interface | SPI, QSPI™, MICROWIRE™, DSP | Compatible serial interfaces |
Key Features
- Simultaneous Sampling and Conversion: Allows for the simultaneous sampling and conversion of two channels.
- Programmable Gain Amplifier (PGA): Each channel has a PGA with 14 gain settings.
- On-Chip Reference: Includes an on-chip 2.5 V reference that can be disabled for external reference use.
- Calibration Function: Device offset calibration and programmable gain adjust registers for input path compensation.
- High Speed Serial Interface: Compatible with SPI, QSPI™, MICROWIRE™, and DSP interfaces.
- Low Power Consumption: Designed for low power operation.
- Wide Input Bandwidth: -3 dB bandwidth of 1.7 MHz at gain = 2.
- High SNR: Typical SNR of 78 dB at gain = 2 and 71 dB at gain = 32.
Applications
- Motor Control Systems: Ideal for monitoring position feedback signals from analog encoders.
- Sensor Monitoring: Suitable for monitoring small amplitude signals from various sensors.
- Industrial Automation: Used in applications requiring high accuracy and simultaneous sampling of multiple channels.
- Medical Devices: Can be used in medical devices that require precise analog-to-digital conversion.
Q & A
- What is the resolution of the AD7264BSTZ-5-RL7 ADC?
The AD7264BSTZ-5-RL7 has a resolution of 14 bits.
- How many channels does the AD7264BSTZ-5-RL7 support?
The AD7264BSTZ-5-RL7 is a dual-channel ADC, supporting two channels.
- What is the maximum sampling rate of the AD7264BSTZ-5-RL7?
The maximum sampling rate is up to 1 MSPS per channel.
- What type of package does the AD7264BSTZ-5-RL7 come in?
The AD7264BSTZ-5-RL7 comes in a 48-lead LQFP package.
- What is the operating temperature range of the AD7264BSTZ-5-RL7?
The operating temperature range is -40°C to +105°C.
- Does the AD7264BSTZ-5-RL7 have an on-chip reference voltage?
Yes, it includes an on-chip 2.5 V reference that can be disabled for external reference use.
- What are the available gain settings for the PGA in the AD7264BSTZ-5-RL7?
The PGA has 14 gain settings: ×1, ×2, ×3, ×4, ×6, ×8, ×12, ×16, ×24, ×32, ×48, ×64, ×96, and ×128.
- What serial interfaces is the AD7264BSTZ-5-RL7 compatible with?
The device is compatible with SPI, QSPI™, MICROWIRE™, and DSP interfaces.
- Does the AD7264BSTZ-5-RL7 support calibration functions?
Yes, it supports device offset calibration and programmable gain adjust registers for input path compensation.
- What is the typical SNR of the AD7264BSTZ-5-RL7 at different gain settings?
The typical SNR is 78 dB at gain = 2 and 71 dB at gain = 32.
