Overview
The AD7478SRTZ-REEL7 is an 8-bit, high-speed, low-power successive approximation analog-to-digital converter (ADC) produced by Analog Devices Inc. This component operates from a single power supply ranging from 2.35 V to 5.25 V and features a throughput rate of up to 1 MSPS. It is packaged in a compact 6-lead SOT-23 package, making it suitable for applications where space is limited.
The AD7478 is part of a family of ADCs that includes the 12-bit AD7476 and the 10-bit AD7477, all of which are designed to achieve low power dissipation at high throughput rates. The device includes a low noise, wide bandwidth track-and-hold amplifier capable of handling input frequencies exceeding 6 MHz.
Key Specifications
| Parameter | Value | Unit | Comments |
|---|---|---|---|
| Resolution | 8-bit | ||
| Throughput Rate | Up to 1 MSPS | ||
| Power Supply Range | 2.35 V to 5.25 V | V | |
| Conversion Time | 800 ns max (16 SCLK cycles with SCLK at 20 MHz) | ns | |
| Track-and-Hold Acquisition Time | 400 ns max | ns | |
| Output Coding | Straight (Natural) Binary | ||
| Output Low Voltage (VOL) | 0.4 V max (ISINK = 200 μA) | V | |
| Floating-State Leakage Current | ±10 μA max | μA | |
| Floating-State Output Capacitance | 10 pF max | pF | |
| Package | 6-Lead SOT-23 | ||
| Operating Temperature Range | -55°C to +125°C | °C |
Key Features
- High Throughput Rate: Up to 1 MSPS, allowing for fast data conversion.
- Low Power Consumption: Designed to achieve very low power dissipation at high throughput rates.
- Flexible Power/Serial Clock Speed Management: The conversion rate can be adjusted through the serial clock speed, enabling reduced average power consumption during non-conversion periods.
- Wide Input Range: The analog input range is from 0 V to VDD, providing a wide dynamic input range.
- No Pipeline Delays: The conversion process is initiated on the falling edge of the CS signal, with no pipeline delays associated with the device.
- Compact Package: Packaged in a 6-lead SOT-23, making it ideal for space-constrained applications.
- Low Noise Track-and-Hold Amplifier: Capable of handling input frequencies exceeding 6 MHz.
Applications
- Industrial Automation: Suitable for various industrial automation tasks requiring high-speed and low-power ADCs.
- Medical Devices: Can be used in medical devices that require precise and fast analog-to-digital conversion.
- Aerospace and Defense: The wide operating temperature range and low power consumption make it suitable for aerospace and defense applications.
- Consumer Electronics: Ideal for consumer electronics that need compact, high-performance ADCs.
- Automotive Systems: Can be integrated into automotive systems that require reliable and efficient analog-to-digital conversion.
Q & A
- What is the resolution of the AD7478SRTZ-REEL7?
The AD7478SRTZ-REEL7 is an 8-bit analog-to-digital converter.
- What is the throughput rate of the AD7478SRTZ-REEL7?
The throughput rate is up to 1 MSPS.
- What is the power supply range for the AD7478SRTZ-REEL7?
The power supply range is from 2.35 V to 5.25 V.
- What is the conversion time of the AD7478SRTZ-REEL7?
The conversion time is up to 800 ns (16 SCLK cycles with SCLK at 20 MHz).
- Does the AD7478SRTZ-REEL7 have pipeline delays?
No, there are no pipeline delays associated with this device.
- What is the package type of the AD7478SRTZ-REEL7?
The device is packaged in a 6-lead SOT-23 package.
- What is the operating temperature range of the AD7478SRTZ-REEL7?
The operating temperature range is from -55°C to +125°C.
- How is the conversion process initiated in the AD7478SRTZ-REEL7?
The conversion process is initiated on the falling edge of the CS signal.
- What is the input range of the AD7478SRTZ-REEL7?
The analog input range is from 0 V to VDD.
- Is the AD7478SRTZ-REEL7 compatible with microprocessors or DSPs?
