ADS7804U

Name: ADS7804U
Brand: Texas Instruments
Rating: 4.5 (10 reviews)
Author: Lisleapex

Next-generation ADC for industrial and automotive apps: This -bit, us sampling CMOS ADC is perfect for demanding application

4,930 Effective Inventory

ADS7804U

Effective Inventory4,930

Next-generation ADC for industrial and automotive apps: This -bit, us sampling CMOS ADC is perfect for demanding application

Manufacturer Part # : ADS7804U
Package/Case: SOIC-28
Brand: Texas Instruments
Product Categories : Analog to Digital Converters (ADC)
Series : ADS7804

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ADS7804U DataSheet

Current price plan is under preparation. Please contact our customer service team for the latest pricing information. Thank you for your understanding and support!

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ADS7804U Details

The ADS7804U is a high-performance, 12-bit analog-to-digital converter (ADC) from Texas Instruments, designed for precision data acquisition in industrial and instrumentation applications. This ADC offers a sampling rate of up to 400kSPS and features low power consumption, making it suitable for battery-operated devices. It comes in a compact and robust package, providing reliable performance in demanding environments.

Pinout

1 (AIN1): Analog Input Channel 1
2 (AIN2): Analog Input Channel 2
3 (AIN3): Analog Input Channel 3
4 (AIN4): Analog Input Channel 4
5 (VCC): Positive Power Supply
6 (GND): Ground
7 (CLK): Clock Input
8 (DOUT): Digital Output

(Tip: For detailed pinout information, please refer to the corresponding datasheet.)

Key Features

High Resolution: Provides 12-bit resolution for accurate data conversion.
High Sampling Rate: Supports sampling rates up to 400kSPS for fast data acquisition.
Low Power Consumption: Designed for low power operation, ideal for portable and battery-powered devices.
Wide Input Voltage Range: Accommodates a wide input voltage range for versatile applications.
Robust Performance: Reliable performance in industrial and harsh environments.

Application

Data Acquisition Systems: Suitable for precision data acquisition in industrial and test equipment.
Instrumentation: Used in instrumentation applications requiring high-resolution data conversion.
Sensor Interfaces: Interfaces with sensors for accurate measurement and digitization of analog signals.

Where to Use

The ADS7804U is recommended for applications that demand high-resolution data conversion and fast sampling rates. It is particularly well-suited for data acquisition systems, instrumentation, and sensor interface applications where precision and reliability are essential.

How to Use

Connect the ADS7804U to your circuit by providing the necessary power supply to VCC and grounding connections to GND. Input the analog signals to the corresponding channels for conversion. Use the clock input (CLK) to control the sampling rate and read the digital output (DOUT) for converted data. Refer to the datasheet for detailed usage instructions.

Application Circuit

The application circuit diagram for the ADS7804U illustrates the proper connection of the ADC in a data acquisition system. It includes connections for power, ground, clock input, and digital output, ensuring accurate and reliable data conversion.

(Tip: For detailed circuit diagram connections and usage guide, refer to the datasheet.)

Equivalents

ADS7805: A similar 12-bit ADC with enhanced features for specific applications.
ADS7806: An alternative ADC offering similar performance and functionality.

Complementary

The ADS7804U can be complemented by the THS4509, a high-speed operational amplifier from Texas Instruments, to further enhance signal conditioning and data acquisition capabilities.

When combining components, ensure compatibility and performance alignment for optimal system operation.

Frequently Asked Questions

Q: What is the maximum sampling rate of the ADS7804U?

A: The ADS7804U supports sampling rates up to 400kSPS. For detailed specifications, refer to the datasheet.

Q: Is the ADS7804U suitable for battery-powered devices?

A: Yes, the ADS7804U features low power consumption, making it suitable for battery-operated devices requiring high-performance data conversion.

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Pbfree Code	Yes	Rohs Code	Yes
Part Life Cycle Code	Active	Part Package Code	SOIC
Pin Count !	28	Reach Compliance Code	compliant
ECCN Code	EAR99	HTS Code !	8542.39.00.01
Analog Input Voltage-Max	10 V	Analog Input Voltage-Min	-10 V
Conversion Time-Max	8 µs	Converter Type	ADC, SUCCESSIVE APPROXIMATION
JESD-30 Code	R-PDSO-G28	JESD-609 Code	e4
Length	17.9 mm	Linearity Error-Max (EL)	0.022%
Moisture Sensitivity Level	3	Number of Analog In Channels	1
Number of Bits	12	Number of Functions	1
Number of Terminals	28	Operating Temperature-Max	85 °C
Operating Temperature-Min	-40 °C	Output Bit Code	2'S COMPLEMENT BINARY
Output Format !	PARALLEL, WORD	Package Body Material	PLASTIC/EPOXY
Package Code	SOP	Package Equivalence Code	SOP28,.4
Package Shape	RECTANGULAR	Package Style	SMALL OUTLINE
Peak Reflow Temperature (Cel)	260	Power Supplies !	5 V
Qualification Status !	Not Qualified	Sample Rate	0.1 MHz
Sample and Hold / Track and Hold	SAMPLE	Seated Height-Max	2.65 mm
Supply Voltage-Min	4.75 V	Supply Voltage-Nom	5 V
Surface Mount !	YES	Technology	CMOS
Temperature Grade !	INDUSTRIAL	Terminal Finish	NICKEL PALLADIUM GOLD
Terminal Form !	GULL WING	Terminal Pitch !	1.27 mm
Terminal Position	DUAL	Time@Peak Reflow Temperature-Max (s)	30
Width	7.5 mm

Datasheet PDF

Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.

Preliminary Specification ADS7804U PDF Download

FAQs

What is ADS7804U?

The ADS7804U is a 12-bit, 4-channel analog-to-digital converter (ADC) manufactured by Texas Instruments. It is designed for applications requiring simultaneous multi-channel data acquisition, such as industrial automation, test and measurement, and data acquisition systems.

How Does ADS7804U Work?

The ADS7804U operates by converting analog input voltages from up to 4 channels into 12-bit digital output data. It utilizes a successive approximation register (SAR) architecture to achieve high-speed and high-accuracy conversion. The ADC features a flexible serial interface for easy integration with microcontrollers and digital signal processors.

How Many Pins does ADS7804U have and What are the Functions of the Pinout Configuration?

The ADS7804U is available in a 28-pin SSOP (Shrink Small Outline Package) package. The pinout configuration includes:

VDD, AGND: Analog power supply and analog ground pins, respectively.
VCC, DGND: Digital power supply and digital ground pins, respectively.
AIN0-3: Analog input channels for simultaneous multi-channel conversion.
CONVST: Conversion start control input.
EOC: End of conversion output.
CS, DOUT, CLK: Serial control interface pins.

What are the Pros and Cons of ADS7804U?

Pros:

Simultaneous Sampling: Capable of sampling multiple channels simultaneously, reducing system latency.
High Resolution: Offers 12-bit resolution for accurate data acquisition.
Low Power Consumption: Operates with low power, suitable for battery-powered devices.
Flexible Interface: Provides a serial interface for easy integration with microcontrollers and digital signal processors.
Compact Package: The SSOP package is space-efficient, suitable for compact designs.

Cons:

Limited Channel Count: Provides 4 analog input channels, which may be insufficient for applications requiring a larger channel count.
External Components: May require external components such as amplifiers and filters for specific application requirements.

Are There Any Equivalents/Alternatives to ADS7804U for Recommendation?

The ADS7805 from Texas Instruments is a 12-bit, 8-channel ADC offering similar functionality.
Alternatives to the ADS7804U include the LTC2320-16 from Analog Devices and the MCP3204 from Microchip Technology.