Overview
The AD7813YR, produced by Analog Devices Inc., is a high-speed, microprocessor-compatible, 8-/10-bit analog-to-digital converter (ADC). This device operates from a single supply voltage ranging from 2.7 V to 5.5 V and features a maximum throughput of 400 kSPS. The AD7813YR includes on-chip track and hold circuitry, a successive approximation A/D converter, and an on-chip clock oscillator. It also boasts an 8-bit wide parallel interface designed for easy interfacing with microprocessors and DSPs. The converter is particularly suited for applications requiring low power consumption and high-speed data conversion.
Key Specifications
| Parameter | Value | Unit | Comments |
|---|---|---|---|
| Number of Bits | 8-/10-bit | ||
| Sampling Rate | 400 kSPS | ||
| Number of Inputs | 1 | Single Ended | |
| Data Interface | Parallel | 8-bit wide | |
| Configuration | S/H-ADC | 1:1 Ratio | |
| Architecture | SAR (Successive Approximation) | ||
| Reference Type | External | ||
| Voltage - Supply, Analog/Digital | 2.7 V to 5.5 V | V | |
| Operating Temperature | -40°C to 105°C | °C | |
| Package / Case | 16-lead DIP, SOIC, TSSOP | ||
| Power Consumption (Normal Operation) | 10.5 mW @ VDD = 3 V | mW | |
| Power Consumption (Automatic Power-Down) | 34.6 µW @ 1 kSPS, VDD = 3 V | µW |
Key Features
- Low Power, Single Supply Operation: The AD7813YR operates from a single 2.7 V to 5.5 V supply and consumes only 10.5 mW of power in normal operation. Power consumption can be significantly reduced at lower throughput rates using the automatic power-down mode.
- Automatic Power-Down: The device automatically powers down at the end of a conversion and powers up before the next conversion, making it ideal for battery-powered applications.
- Parallel Interface: An easy-to-use 8-bit-wide parallel interface allows for easy interfacing to most popular microprocessors and DSPs with minimal external circuitry.
- Dynamic Specifications: The AD7813YR is specified for ac parameters, including signal-to-noise ratio and distortion, making it suitable for DSP applications.
Applications
The AD7813YR is suitable for a variety of applications, including:
- Battery-Powered Devices: The low power consumption and automatic power-down feature make it ideal for battery-powered applications.
- Data Acquisition Systems: Its high-speed conversion and parallel interface make it a good fit for data acquisition systems requiring high throughput rates.
- DSP and Microprocessor Systems: The device is designed to interface easily with most microprocessors and DSPs, making it a versatile component for various digital signal processing applications.
Q & A
- What is the maximum sampling rate of the AD7813YR?
The maximum sampling rate of the AD7813YR is 400 kSPS. - What is the supply voltage range for the AD7813YR?
The AD7813YR operates from a single supply voltage ranging from 2.7 V to 5.5 V. - What type of interface does the AD7813YR use?
The AD7813YR uses an 8-bit wide parallel interface. - What is the power consumption of the AD7813YR in normal operation?
The power consumption in normal operation is typically 10.5 mW at VDD = 3 V. - Does the AD7813YR have an automatic power-down feature?
Yes, the AD7813YR has an automatic power-down feature that significantly reduces power consumption at lower throughput rates. - What is the operating temperature range of the AD7813YR?
The operating temperature range is -40°C to 105°C. - What types of packages are available for the AD7813YR?
The AD7813YR is available in 16-lead DIP, SOIC, and TSSOP packages. - What is the architecture of the AD7813YR?
The AD7813YR uses a Successive Approximation (SAR) architecture. - Is the AD7813YR suitable for DSP applications?
Yes, the AD7813YR is specified for ac parameters, including signal-to-noise ratio and distortion, making it suitable for DSP applications. - How does the AD7813YR read the 10-bit conversion result?
The 10-bit conversion result is read by carrying out two 8-bit read operations: the first read accesses the 8 MSBs, and the second read accesses the 2 LSBs).
