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AD7655ASTZ
+BOMIC ADC 16BIT SAR 48LQFP
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ManufacturerAnalog Devices Inc.
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Mfr. Part #AD7655ASTZ
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Datasheet AD7655ASTZ DataSheet
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Package LQFP-48
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In Stock5580
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Specifications
| Attribute | Value |
| Package | Tray |
| Series | PulSAR® |
| ProductStatus | Active |
| NumberofBits | 16 |
| SamplingRate(PerSecond) | 1M |
| NumberofInputs | 2, 4 |
| InputType | Pseudo-Differential, Single Ended |
| DataInterface | SPI, Parallel, DSP |
| Configuration | MUX-S/H-MUX-ADC |
| Ratio-S/H:ADC | 2:1 |
| NumberofA/DConverters | 1 |
| Architecture | SAR |
| ReferenceType | External |
| Voltage-SupplyAnalog | 5V |
| Voltage-SupplyDigital | 5V |
| Features | Simultaneous Sampling |
| OperatingTemperature | -40°C ~ 85°C |
| Package/Case | 48-LQFP |
| SupplierDevicePackage | 48-LQFP (7x7) |
Overview
Description
The AD7655ASTZ has a differential input range, ensuring better noise immunity and allowing for more precise measurements in noisy environments. It supports a wide dynamic range with a Signal-to-Noise Ratio (SNR) of approximately 89 dB. The ADC operates over a wide voltage range and provides various digital interface options, including parallel and serial interfaces, for flexible communication with microcontrollers or DSPs.
The device is commonly used in applications such as industrial automation, medical instrumentation, and communications systems, where high-speed and high-resolution data conversion are critical. Its compact form factor and robust performance make it a versatile choice for engineers looking to implement reliable data acquisition solutions.
Equivalent
1. Texas Instruments ADS8363 - Dual 16-bit, 1 MSPS ADC.
2. Linear Technology (now part of Analog Devices) LTC1865 - 16-bit, 200 ksps ADC.
3. Maxim Integrated (now part of Analog Devices) MAX1304 - 16-bit, 1 MSPS ADC.
These alternatives vary slightly in features and specifications, so it's important to review their datasheets to ensure compatibility with your application.
Features
1. Resolution and Channels: It offers 16-bit resolution with two channels, enabling simultaneous sampling of two inputs.
2. Architecture: Utilizes a successive approximation register (SAR) ADC architecture, which provides high speed and accuracy.
3. Speed: Capable of conversion rates up to 1 MSPS (Mega Samples Per Second), suitable for high-speed data acquisition.
4. Input Range and Type: Supports bipolar and unipolar input ranges, adaptable for various signal types.
5. Interface: Features a versatile parallel and serial interface, allowing easy integration with microcontrollers and digital signal processors.
6. Power Supply: Operates with a single 5V supply, making it efficient for power-sensitive applications.
7. Accuracy and Performance: Offers low total harmonic distortion (THD) and high signal-to-noise ratio (SNR), ensuring high-quality signal conversion.
8. Package: Available in a compact, RoHS-compliant, 48-lead LQFP package, optimizing space in circuit designs.
These features make the AD7655ASTZ suitable for applications in instrumentation, communication, and industrial automation where precision and speed are crucial.
Pinout
- Total Pin Count: 48 pins.
- Key Functions:
- Dual simultaneous sampling of two separate analog input channels.
- Each channel supports a sample rate of up to 1 MSPS.
- The device supports both serial and parallel interface modes for data communication.
- The ADC has a built-in track-and-hold circuit for each channel.
- It operates from a single 5V analog supply and a 2.7V to 5.25V digital supply.
The AD7655ASTZ is designed for applications requiring high-speed, high-accuracy data conversion, such as medical imaging and instrumentation.