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AD7793BRUZ
+BOMIC ADC 24BIT SIGMA-DELTA 16TSSOP
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メーカーテキサス・インスツルメンツ
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メーカー品番 #AD7793BRUZ
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データシート AD7793BRUZ DataSheet
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パッケージ 16-TSSOP
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在庫状況5584
365 日間品質保証
7*24 日間の品質保証
90-時間単位のサービス保証
1日間のアフターサービス保証
仕様
| 属性 | 値 |
| Package | Tube |
| ProductStatus | Active |
| NumberofBits | 24 |
| SamplingRate(PerSecond) | 470 |
| NumberofInputs | 3 |
| InputType | Differential |
| DataInterface | SPI, DSP |
| Configuration | MUX-ADC |
| NumberofA/DConverters | 1 |
| Architecture | Sigma-Delta |
| ReferenceType | External, Internal |
| Voltage-SupplyAnalog | 2.7V ~ 5.25V |
| Voltage-SupplyDigital | 2.7V ~ 5.25V |
| Features | PGA |
| OperatingTemperature | -40°C ~ 105°C |
| Package/Case | 16-TSSOP (0.173, 4.40mm Width) |
| SupplierDevicePackage | 16-TSSOP |
概要
Description
The AD7793BRUZ supports three differential analog input channels and includes a low-drift, programmable gain amplifier (PGA). It offers a flexible, easy-to-use serial peripheral interface (SPI), allowing integration with a variety of microcontrollers and processors. Additionally, it has an on-chip clock generator, a reference input, and an internal temperature sensor for added functionality.
Its low power consumption makes it ideal for battery-operated devices, and it operates over a wide temperature range, enhancing its versatility in different applications. Overall, the AD7793BRUZ is a robust ADC choice for precision measurement tasks.
Equivalent
1. AD7794/AD7795: Also from Analog Devices, with similar features but different input channels.
2. MCP3421: From Microchip Technology, though it offers fewer channels and lower resolution.
3. ADS1248: From Texas Instruments, providing similar precision and features.
4. LTC2485: From Analog Devices (formerly Linear Technology), with low noise and high resolution.
Always confirm specifications to ensure compatibility.
Features
1. Resolution and Channels: It is a 24-bit Sigma-Delta analog-to-digital converter (ADC) with three fully differential analog input channels.
2. Programmable Gain Amplifier (PGA): Offers gains from 1 to 128, allowing for high-precision measurements.
3. Low Noise: It provides noise performance of 40 nV rms at the highest gain and lowest data rate.
4. Low Power Consumption: Designed for battery-powered applications, it has a power-down mode to further conserve energy.
5. Built-in Reference: Includes an internal 2.5V reference, but also allows for external reference inputs.
6. Temperature Range: Operates across a wide temperature range from -40°C to +105°C.
7. Digital Interface: Utilizes a SPI-compatible serial interface for communication.
8. Supply Voltage: Operates with a single 2.7V to 5.25V supply.
This ADC is suitable for applications requiring high precision and low power, such as weigh scales and pressure measurement systems.
Pinout
Here's a concise overview of its pin count and primary functions:
- Pin Count: The AD7793BRUZ has 16 pins.
- Key Functions:
- Analog Inputs: It features multiple differential or pseudo-differential input channels for connecting sensors.
- Reference Inputs (REFIN+ and REFIN-): Provides external reference voltage inputs for accurate conversion.
- Digital Interface: Utilizes SPI (Serial Peripheral Interface) for communication with microcontrollers.
- Clock Input/Output: Supports an external clock or operates with its internal clock.
- Power Supply: Operates typically at 2.7 V to 5.25 V (AVDD pin).
- Others: Includes pins for ground (GND), power-down function, and data output (DOUT).
This ADC is particularly suited for use in applications such as weigh scales, pressure measurement, and medical instrumentation, where high accuracy and low power consumption are critical.
Manufacturer
Application
1. Weigh Scales: High precision makes it suitable for weight measurement systems.
2. Temperature Monitoring: Accurate readings for industrial and medical temperature sensors.
3. Pressure Measurement: Utilized in pressure transducers for its sensitivity and accuracy.
4. Strain Gauge Applications: Converts small voltage changes in strain gauge outputs.
5. Process Control: Suitable for monitoring and controlling industrial process parameters.
6. Data Acquisition Systems: Employed in systems requiring precise data conversion.
These applications benefit from its 24-bit resolution, low noise, and programmable gain features.