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AD7705BRZ-REEL7
+Lista de MateriaisIC ADC 16BIT SIGMA-DELTA 16SOIC
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FabricanteAnalog Devices Inc.
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Peça do Fabricante #AD7705BRZ-REEL7
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Pacote SOIC-16
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Em Estoque1361
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Especificações
| Atributo | Valor |
| Package / Case | Tape & Reel (TR),Cut Tape (CT),Bulk |
| Part Status | Active |
| Number of Bits | 16 |
| Sampling Rate(Per Second) | 500 |
| Number of Inputs | 2 |
| Input Type | Differential |
| Data Interface | SPI, DSP |
| Configuration | MUX-PGA-ADC |
| Number of A/D Converters | 1 |
| Architecture | Sigma-Delta |
| Reference Type | External |
| Voltage - Supply, Analog | 2.7V ~ 3.3V, 5V |
| Voltage - Supply, Digital | 2.7V ~ 3.3V, 5V |
| Features | PGA |
| Operating Temperature | -40°C ~ 85°C |
| Supplier Device Package | 16-SOIC |
Visão Geral
Description
Key features include its sigma-delta architecture, which ensures high accuracy and noise reduction, making it ideal for precision measurement applications. The AD7705BRZ-REEL7 supports two fully differential input channels, offering flexibility in connecting various sensors or input signals. Its serial interface is compatible with SPI and MICROWIRE, facilitating easy integration with microcontrollers or digital signal processors.
The device operates within a supply voltage range of 2.7V to 3.3V, which is suitable for low-voltage applications. It also includes self-calibration and system calibration options to maintain accuracy over time and varying conditions. The "REEL7" designation refers to the packaging format, indicating the parts are supplied on a reel for automated assembly processes.
The AD7705BRZ-REEL7 is widely used in applications such as industrial process control, instrumentation, and medical devices due to its precision and reliability.
Equivalent
1. ADS1115 from Texas Instruments: 16-bit ADC with I2C interface.
2. MCP3421 from Microchip Technology: 18-bit ADC with I2C.
3. LTC2400 from Analog Devices (formerly Linear Technology): 24-bit ADC with SPI.
These alternatives differ in specific features and specifications, so ensure compatibility with your application requirements.
Features
1. Resolution: 16-bit ADC for precise data conversion.
2. Input Channels: Dual, fully differential input channels for versatility.
3. Input Range: Programmable gain amplifier allowing input ranges from ±20 mV to ±2.56 V.
4. Low Power Consumption: Suitable for battery-powered applications.
5. Sigma-Delta Architecture: Provides excellent noise performance and accuracy.
6. Serial Interface: SPI-compatible interface for easy integration with microcontrollers.
7. Self-Calibration: Automatic calibration ensures high accuracy without manual intervention.
8. Programmable Filter: Integrated digital filter for noise reduction and signal conditioning.
9. Supply Voltage: Operates with a single supply of 2.7 V to 5.25 V.
10. Operating Temperature: Industrial temperature range from -40°C to +85°C.
11. Package: Available in a compact TSSOP package, ideal for space-constrained applications.
These features make the AD7705BRZ-REEL7 suitable for precision measurement in applications like sensor interfacing and instrumentation.
Pinout
Here's a brief overview of the functions associated with some key pins:
1. AIN1+ and AIN1-: Differential analog input pair for channel 1.
2. AIN2+ and AIN2-: Differential analog input pair for channel 2.
3. REFIN+ and REFIN-: Positive and negative reference voltage inputs.
4. AGND and DGND: Analog and digital ground connections.
5. AVDD and DVDD: Analog and digital supply voltage pins.
6. CLKIN: External clock input or used for crystal oscillator connection.
7. MCLKOUT: Master clock output for synchronization purposes.
8. CS: Chip select, used to enable the device during SPI communication.
9. DOUT: Serial data output for SPI communication.
10. DIN: Serial data input for SPI communication.
11. SCLK: Serial clock input for SPI data transfer timing.
These functions help facilitate the conversion of analog signals to digital with high precision, suitable for various sensor and instrumentation tasks.
Manufacturer
Application
1. Industrial Process Control: Used for monitoring and controlling industrial processes with high precision.
2. Weigh Scales: Ideal for weighbridge and precision weight measurement systems.
3. Medical Instrumentation: Utilized in medical devices requiring precise data acquisition.
4. Portable Instrumentation: Suitable for battery-operated devices due to its low power consumption.
5. Temperature Measurement: Used in thermocouple and RTD applications for accurate temperature readings.
Its versatility makes it suitable for any application requiring reliable data conversion from analog to digital signals.