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AD7791BRMZ
+NomenclatureIC ADC 24BIT SIGMA-DELTA 10MSOP
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FabricantAnalog Equipment GmbH.
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Pièce fabricant #AD7791BRMZ
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Package MSOP-10
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En stock2803
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Spécifications
| Attribut | Valeur |
| Package / Case | Tube |
| Part Status | Active |
| Number of Bits | 24 |
| Sampling Rate(Per Second) | 120 |
| Number of Inputs | 1 |
| Input Type | Differential |
| Data Interface | SPI, DSP |
| Configuration | ADC |
| Number of A/D Converters | 1 |
| Architecture | Sigma-Delta |
| Reference Type | External |
| Voltage - Supply, Analog | 2.5V ~ 5.25V |
| Voltage - Supply, Digital | 2.5V ~ 5.25V |
| Operating Temperature | -40°C ~ 105°C |
| Supplier Device Package | 10-MSOP |
Présentation
Description
Key features of the AD7791BRMZ include a low noise front end, a programmable gain amplifier (PGA) allowing gain settings from 1 to 128, and an on-chip precision oscillator. The device operates with a single supply voltage and has a low power consumption, which makes it an ideal choice for battery-powered applications. It also includes a simple SPI-compatible interface for easy integration with microcontrollers.
The AD7791BRMZ is available in a small MSOP package, providing additional flexibility for compact designs. Its low noise, high accuracy, and ease of use make it a popular choice for precision measurement applications.
Equivalent
1. Texas Instruments ADS1115 – A 16-bit ADC with similar low-power features.
2. Microchip Technology MCP3421 – Another 18-bit variant offering comparable performance.
3. Maxim Integrated MAX11131 – Offers similar high-resolution data conversion.
These alternatives offer similar functionality, but specifications such as input types, resolution, and power consumption may vary slightly.
Features
1. Resolution: 16-bit, ensuring high precision in measurements.
2. Low Power: It has a low power consumption of typically 300 µA.
3. Single-Supply Operation: Operates from a single 2.7 V to 5.25 V supply voltage.
4. Low Noise: Offers excellent noise performance with a noise-free resolution of up to 16 bits.
5. Input Channels: Provides a simple 2-channel multiplexer with pseudo-differential inputs.
6. Programmable Gain: Includes a gain stage that can be configured with gains of 1 or 128.
7. On-Chip Features: Includes an on-chip clock, reference, and programmable excitation current sources.
8. Interface: Utilizes a simple serial interface for communication, compatible with SPI, QSPI, and MICROWIRE protocols.
9. Temperature Range: Designed to operate over a wide temperature range of -40°C to +105°C.
These features make the AD7791BRMZ suitable for applications like industrial control, weigh scales, and temperature measurement.
Pinout
Here is a brief description of its pin functions:
1. VDD (Pin 1): Power supply pin.
2. AIN (+) (Pin 2): Positive analog input.
3. AIN (-) (Pin 3): Negative analog input.
4. GND (Pin 4): Analog ground reference.
5. SCLK (Pin 5): Serial clock input. Used to clock data in and out of the device.
6. DOUT/RDY (Pin 6): Data output/Ready output. Acts as data output line and also indicates conversion completion.
7. DIN (Pin 7): Data input pin for the serial interface.
8. CS (Pin 8): Chip select input. Used to select the device in systems with multiple devices on the SPI bus.
These functions are crucial for connecting the AD7791BRMZ to other components in a circuit, enabling it to perform its role as a precision ADC.
Manufacturer
Application
1. Weigh Scales: Ideal for high-resolution weight measurement systems.
2. Temperature Measurement: Used in precision temperature sensors and monitoring equipment.
3. Pressure Sensors: Suitable for high-accuracy pressure measurement systems.
4. Industrial Process Control: For precise data acquisition in control systems.
5. Medical Instrumentation: Used in equipment requiring accurate and stable measurements, such as patient monitoring devices.
These applications benefit from the AD7791BRMZ's features like high resolution, low power consumption, and noise performance.