AD7478ARTZ
High speed conversion
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製造商零件號 # : AD7478ARTZ
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包裝/封裝: SOT23-6
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製造商: Analog Devices
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產品分類 : Analog to Digital Converters (ADC)
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AD7478ARTZ 數據表
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詳細說明
GENERAL DESCRIPTIONThe AD7476/AD7477/AD74781 are, respectively, 12-bit, 10-bit, and 8-bit, high speed, low power, successive approximation ADCs. The parts operate from a single 2.35 V to 5.25 V power supply and feature throughput rates up to 1 MSPS. Each part contains a low noise, wide bandwidth track-and-hold amplifier that can handle input frequencies in excess of 6 MHz.FEATURES Fast throughput rate: 1 MSPS Specified for VDD of 2.35 V to 5.25 V Low power 3.6 mW at 1 MSPS with 3 V supplies 15 mW at 1 MSPS with 5 V supplies Wide input bandwidth 70 dB SNR at 100 kHz input frequency Flexible power/serial clock speed management No pipeline delays High speed serial interface SPI®-/QSPI™-/MICROWIRE™-/DSP-compatible Standby mode: 1 μA maximum 6-lead SOT-23 packageAPPLICATIONS Battery-powered systems Personal digital assistants Medical instruments Mobile communications Instrumentation and control systems Data acquisition systems High speed modems Optical sensors
主要特徵
- Flexible bit-depth configuration for varied applications
- Power management features to optimize efficiency
- Suitable for battery-powered devices
- Wide operating temperature range
應用
- Perfect for automation needs
- Efficient and reliable
- Compact and high-performing
規格
以下是所選零件的基本參數,涉及零件的特性及其所屬類別。
Product Category ! | Analog to Digital Converters - ADC | Series | AD7478A |
Interface Type | 3-Wire, QSPI, SPI | Analog Supply Voltage | 2.35 V to 5.25 V |
Digital Supply Voltage | 2.35 V to 5.25 V | Brand | Analog Devices |
Product Type ! | ADCs - Analog to Digital Converters | Factory Pack Quantity | 3000 |
Subcategory | Data Converter ICs |
數據表 PDF
數據表記錄了器件的特性、絕對最大額定值、應用等,這對於作為器件特定應用的整體指南大有裨益。
常見問題解答
What is AD7478ARTZ?
The AD7478ARTZ is a low-power, 1 MSPS, 12-bit analog-to-digital converter (ADC) designed by Analog Devices. It is ideal for applications requiring high-speed and low-power analog-to-digital conversion, such as data acquisition, industrial automation, and portable instrumentation.
How Does AD7478ARTZ Work?
The AD7478ARTZ works by converting analog input signals into 12-bit digital data at a maximum sampling rate of 1 MSPS. It utilizes a successive approximation register (SAR) architecture to achieve high-speed and accurate conversion with low power consumption. The converter features a flexible serial interface and a wide input voltage range, making it suitable for a variety of measurement and control applications.
How Many Pins does AD7478ARTZ have and What are the Functions of the Pinout Configuration?
The AD7478ARTZ is housed in a 16-lead TSSOP (Thin Shrink Small Outline Package) package. The pinout configuration includes:
- VDD: Power supply pin.
- VSS: Ground pin.
- AINx+: Analog input pins for differential or single-ended input.
- REF/IOVDD, AGND: Reference voltage and IO power supply pins, and analog ground.
- SDI, SDO, SCLK, CNVST, CONVST2: Serial interface control pins for communication.
- SDO, RDY: Data output pins and data ready indicator.
What are the Pros and Cons of AD7478ARTZ?
Pros:
- High Speed: Achieves a maximum sampling rate of 1 MSPS for rapid analog-to-digital conversion.
- Low Power Consumption: Operates with low power, suitable for battery-powered and portable devices.
- Flexible Input Configuration: Supports both differential and single-ended analog input signals.
- Wide Input Voltage Range: Accepts a wide range of input voltages for versatile measurements.
- Small Footprint: The 16-lead TSSOP package offers a compact footprint for space-constrained designs.
Cons:
- Resolution: Offers 12-bit resolution, which may not be sufficient for applications requiring higher precision.
- External Components: May require additional components such as a reference voltage source and input signal conditioning for optimal performance.
- Interface Complexity: The use of a serial interface may require careful attention to timing and signal integrity.
Are There Any Equivalents/Alternatives to AD7478ARTZ for Recommendation?
- The ADS7886 from Texas Instruments is a similar 12-bit ADC with comparable performance characteristics.
- Alternatives to the AD7478ARTZ include the MAX1230 from Maxim Integrated and the LTC1298 from Analog Devices.
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