Overview
The AD7819YR, produced by Analog Devices Inc., is a high-speed, microprocessor-compatible, 8-bit analog-to-digital converter (ADC). This component operates on a single supply voltage ranging from 2.7 V to 5.5 V and features a maximum throughput of 200 kSPS. The AD7819YR includes a successive approximation A/D converter, track/hold circuitry, an on-chip clock oscillator, and an 8-bit wide parallel interface, making it easy to interface with microprocessors and DSPs. The device is particularly suited for applications requiring low power consumption and high-speed conversions.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Bits | 8 |
| Sampling Rate (Per Second) | 200 kSPS |
| Number of Inputs | 1 |
| Input Type | Single Ended |
| Data Interface | Parallel |
| Configuration | S/H-ADC |
| Architecture | Successive Approximation (SAR) |
| Reference Type | External |
| Voltage - Supply, Analog | 2.7 V to 5.5 V |
| Voltage - Supply, Digital | 2.7 V to 5.5 V |
| Operating Temperature | -40°C to 105°C |
| Package / Case | 16-lead Small Outline IC (SOIC), 16-lead Thin Shrink Small Outline Package (TSSOP) |
| Power Consumption (Normal Operation) | 10.5 mW @ VDD = 3 V |
| Power Consumption (Automatic Power-Down) | 57.75 µW @ 1 kSPS, VDD = 3 V |
Key Features
- Low power, single supply operation: The AD7819YR operates from a single 2.7 V to 5.5 V supply and consumes only 10.5 mW of power at normal operation.
- Automatic power-down: The device automatically powers down at the end of a conversion and powers up before the next conversion, significantly reducing power consumption at lower throughput rates.
- High-speed conversions: Capable of providing 200 kSPS throughput in high-speed mode.
- Easy interfacing: The 8-bit wide parallel interface allows easy interfacing to microprocessors and DSPs.
- Compact packaging: Available in 16-lead SOIC and TSSOP packages.
Applications
The AD7819YR is suitable for a variety of applications, including:
- Battery-powered devices: The automatic power-down feature makes it ideal for battery-powered applications where power conservation is critical.
- Embedded systems: Its low power consumption and high-speed conversion capabilities make it a good fit for embedded systems.
- Industrial automation: Used in industrial automation for high-speed data acquisition.
- Medical devices: Suitable for medical devices requiring precise and fast analog-to-digital conversions.
Q & A
- What is the maximum sampling rate of the AD7819YR?
The AD7819YR has a maximum sampling rate of 200 kSPS. - What is the supply voltage range for the AD7819YR?
The supply voltage range is from 2.7 V to 5.5 V. - What type of interface does the AD7819YR use?
The AD7819YR uses an 8-bit wide parallel interface. - How does the automatic power-down feature work?
The device automatically powers down at the end of a conversion and powers up before the next conversion, reducing power consumption at lower throughput rates. - What are the available package types for the AD7819YR?
The AD7819YR is available in 16-lead SOIC and TSSOP packages. - What is the typical power consumption of the AD7819YR in normal operation?
The typical power consumption is 10.5 mW at VDD = 3 V. - What is the operating temperature range for the AD7819YR?
The operating temperature range is from -40°C to 105°C. - What type of architecture does the AD7819YR use?
The AD7819YR uses a successive approximation (SAR) architecture. - Is the AD7819YR suitable for battery-powered applications?
Yes, the automatic power-down feature makes it ideal for battery-powered applications. - Can the AD7819YR be easily interfaced with microprocessors and DSPs?
Yes, the 8-bit wide parallel interface allows easy interfacing with microprocessors and DSPs.
