AD7490BRU

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AD7490BRU

IC ADC 12BIT SAR 28TSSOP

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Specifications

Package Tube,Tube
ProductStatus Obsolete
NumberofBits 12
SamplingRate(PerSecond) 1M
NumberofInputs 16
InputType Single Ended
DataInterface SPI, DSP
Configuration MUX-S/H-ADC
Ratio-S/H:ADC 1:1
NumberofA/DConverters 1
Architecture SAR
ReferenceType External
Voltage-SupplyAnalog 2.7V ~ 5.25V
Voltage-SupplyDigital 2.7V ~ 5.25V
OperatingTemperature -40°C ~ 85°C
Package/Case 28-TSSOP (0.173, 4.40mm Width)
SupplierDevicePackage 28-TSSOP

Overview

Description

The AD7490BRU is a high-speed, 12-bit analog-to-digital converter (ADC) from Analog Devices, designed for a range of applications requiring fast data acquisition. It features a sampling rate of up to 1 MSPS (mega samples per second) and utilizes a successive approximation register (SAR) architecture, which provides a balance of speed and resolution.
Key characteristics include a single-ended input, a reference voltage range of 2.5V to 5V, and a low power consumption of around 5 mW at maximum throughput. The device operates from a single supply of 2.7V to 5.25V, making it suitable for battery-operated systems.
The AD7490BRU offers digital outputs in a 3-wire SPI-compatible interface, facilitating easy integration with microcontrollers and digital signal processors. This ADC is well-suited for applications in industrial automation, instrumentation, and consumer electronics, where precision and speed are crucial. Its compact package (LFCSP) enhances its usability in space-constrained designs. Overall, the AD7490BRU is an efficient solution for high-performance data conversion needs.

Features

The AD7490BRU is a 12-bit, single-channel, successive approximation analog-to-digital converter (ADC) from Analog Devices. Key features include:
- Sample Rate: Up to 1 MSPS (megasample per second).
- Input Range: 0 to VREF (typically 2.5V).
- Power Supply: Operates with a single +2.7V to +5.25V supply.
- Low Power Consumption: Consumes only 1.6 mW at maximum sample rate.
- Digital Interface: SPI-compatible serial interface for easy integration.
- Internal Reference: Includes an internal 2.5V reference voltage.
- Low Noise: Designed for applications requiring high resolution and low noise.
- Temperature Range: Suitable for industrial applications with an extended temperature range.
- Package Type: Available in a small, 16-lead TSSOP package.
This ADC is ideal for battery-operated devices, industrial control systems, and applications requiring precise data acquisition from sensors.

Package

The AD7490BRU is packaged in a 14-lead TSSOP (Thin Shrink Small Outline Package) format, which is designed for space efficiency and thermal performance in electronic applications.

Pinout

The AD7490BRU is a 12-bit analog-to-digital converter (ADC) with a total of 16 pins. The key functions of the pins are as follows:
1. VDD: Power supply (+2.7V to +5.25V)
2. GND: Ground reference
3. VREF: Reference voltage input
4. AIN: Analog input for the signal to be converted
5. SCLK: Serial clock input for data transfer
6. DIN: Serial data input for configuration
7. DOUT: Serial data output for converted digital data
8. CS: Chip select input to activate the device
9. CONVST: Convert start signal input
10. BUSY: Indicates conversion in progress
11. RESET: Reset the device to a known state
12. PD: Power-down mode input
The remaining pins are for various functions such as test or connection purposes. This device is suitable for applications requiring high-speed data acquisition.

Manufacturer

The AD7490BRU is manufactured by Analog Devices, Inc. (ADI). Analog Devices is a global leader in the design and manufacturing of analog, mixed-signal, and digital signal processing integrated circuits (ICs). Founded in 1965 and headquartered in Norwood, Massachusetts, ADI provides a wide range of solutions for various applications, including automotive, communications, industrial, and consumer electronics. The company is known for its expertise in precision analog technology and high-performance signal processing, serving industries that require high reliability and performance in their electronic systems.

Application

The AD7490BRU is a 12-bit, dual-channel, successive approximation ADC (Analog-to-Digital Converter) primarily used in applications such as industrial process control, data acquisition systems, medical instrumentation, and portable devices. Its low power consumption and high-speed conversion make it suitable for battery-operated applications, while its dual-channel capability supports multi-sensor systems in automotive, consumer electronics, and communications.

Equivalent

The AD7490BRU is a 12-bit, 1 MSPS, successive approximation ADC. Equivalent products include the MCP3201 (Microchip), LTC1865 (Analog Devices), and ADS8319 (Texas Instruments). These alternatives offer similar specifications, such as resolution, sampling rate, and interface options, suitable for various applications.

Shipping

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DHL: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 2-5 business days.

FedEx: Shipping cost ranges from $25-$40 (0.5kg), with an estimated delivery time of 3-7 business days.

UPS: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 3-7 business days.

TNT: Shipping cost ranges from $25-$65 (0.5kg), with an estimated delivery time of 3-7 business days.

EMS: Shipping cost ranges from $30-$50 (0.5kg), with an estimated delivery time of 7-15 business days.

Registered Air Mail: Shipping cost is $2-$4 (0.1kg), with an estimated delivery time of 5-20 business days.

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