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AD7945BR
+Lista de MateriaisIC DAC 12BIT A-OUT 20SOIC
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FabricanteAnalog Devices Inc.
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Peça do Fabricante #AD7945BR
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Ficha Técnica AD7945BR DataSheet
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Especificações
| Atributo | Valor |
| Part Status | Obsolete |
| Number of Bits | 12 |
| Number of D / A Converters | 1 |
| Settling Time | 600µs (Typ) |
| Output Type | Current - Unbuffered |
| Differential Output | No |
| Data Interface | Parallel |
| Reference Type | External |
| Voltage - Supply, Analog | 5V |
| Voltage - Supply, Digital | 5V |
| INL / DNL (LSB) | ±0.5 (Max), ±0.5 (Max) |
| Architecture | R-2R |
| Operating Temperature | -40°C ~ 85°C |
| Package / Case | 20-SOIC (0.295", 7.50mm Width) |
| Supplier Device Package | 20-SOIC |
| Mounting Type | Surface Mount |
| Base Product Number | AD7945 |
Visão Geral
Description
This ADC operates with a supply voltage range of 2.7V to 5.25V and offers a differential input, allowing for improved noise performance. It includes an integrated reference voltage, simplifying design requirements. The AD7945BR utilizes a serial interface, compatible with SPI, which facilitates easy communication with microcontrollers and digital signal processors.
Notably, the device provides low power consumption, enhancing battery life in portable applications. Its combination of high resolution, speed, and low power makes the AD7945BR ideal for high-performance applications where accurate and fast signal processing is crucial.
Equivalent
Features
- Resolution: 14-bit, providing high accuracy in signal conversion.
- Sample Rate: Up to 1 MSPS (mega samples per second), enabling fast data acquisition.
- Input Voltage Range: 0 V to VREF, allowing flexibility in application.
- Reference Voltage: External reference input for optimized performance.
- Power Supply: Operates on a single supply of 2.7 V to 5.5 V, suitable for battery-powered applications.
- Low Power Consumption: Typically consumes 5 mW at 1 MSPS, enhancing energy efficiency.
- Interface: SPI-compatible digital interface for easy integration with microcontrollers.
- Internal Sample-and-Hold: Ensures stable input during conversion.
- Temperature Range: Commercial and industrial temperature options for diverse applications.
These features make the AD7945BR suitable for precision data acquisition in industrial, medical, and consumer electronics applications.
Pinout
Key pins and their functions include:
1. VDD - Power supply.
2. GND - Ground.
3. REF - Reference voltage input.
4. VIN - Analog input voltage for conversion.
5. CS - Chip select for enabling the device.
6. SCLK - Serial clock input for data transfer.
7. SDO - Serial data output for digital data.
8. SDI - Serial data input for control commands.
9. CONVST - Convert start signal.
10. BUSY - Indicates conversion status.
The AD7945BR operates at a maximum sample rate of 1 MSPS and features low power consumption, making it suitable for various applications in industrial control and data acquisition systems.
Manufacturer
Analog Devices focuses on high-performance components such as data converters, amplifiers, sensors, and power management solutions. The AD7945BR is a precision, low-power, 16-bit analog-to-digital converter (ADC) designed for high-speed applications, commonly used in data acquisition systems, medical devices, and instrumentation. The company is recognized for its commitment to quality, reliability, and cutting-edge semiconductor technologies, making it a key player in the electronics industry.