ADS7844E

Name: ADS7844E
Brand: Texas Instruments
Availability: InStock
Rating: 4.5 (10 reviews)
Author: Lisleapex

8-Channel input

6,337 Effective Inventory

ADS7844E

Effective Inventory6,337

8-Channel input

Manufacturer Part # : ADS7844E
Package/Case: SSOP-20
Brand: Texas Instruments
Product Categories : Analog to Digital Converters (ADC)
Series : ADS7844

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ADS7844E DataSheet

Pricing (USD)

Quantity	Unit Price	Ext. Price
1	$9.849	$9.85
10	$8.680	$86.80
50	$7.968	$398.40
100	$7.370	$737.00

These prices are subject to market fluctuations, and a quote submission is required to obtain the latest prices.

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ADS7844E Details

The ADS7844E is a high-performance 12-bit analog-to-digital converter (ADC) from Texas Instruments, designed for reliable data conversion in industrial and medical applications. This device features multi-channel measurement capabilities, digital filtering and amplification, data compression and encryption, stand-alone operation and connectivity, and real-time monitoring and logging.

Key Features

Multi-Channel Measurement Capabilities: Allows for simultaneous measurement of multiple channels.
Digital Filtering and Amplification: Performs digital filtering and amplification to enhance measurements.
Data Compression and Encryption: Compresses and encrypts data for secure transmission.
Stand-Alone Operation and Connectivity: Supports stand-alone operation and connectivity with other devices.
Real-Time Monitoring and Logging: Enables real-time monitoring and logging of measured data.

Applications

Industrial Automation: Suitable for industrial automation applications that require multi-channel measurement capabilities.
Medical Devices: Ideal for medical devices that require reliable and accurate data conversion.

Where to Use

The ADS7844E is suitable for applications that require multi-channel measurement capabilities, digital filtering and amplification, data compression and encryption, stand-alone operation and connectivity, and real-time monitoring and logging. It is ideal for industrial and medical environments where reliable data conversion is crucial.

How to Use

Connect the ADS7844E to your application by following the recommended connectivity configuration. Ensure proper power supply connections, and configure the device according to its specifications. For detailed usage instructions, refer to the datasheet.

Application Circuit

The application circuit diagram for the ADS7844E illustrates how to connect the ADC to your application's measurement system. It includes connections for power supply, ground, and analog input signals, ensuring proper operation and reliable data conversion.

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

Equivalents

DAC7412: A similar ADC from Texas Instruments offering comparable features and performance.
ADS1258C04: An alternative ADC from Texas Instruments with equivalent functionality.

Complementary

The ADS7844E can be complemented by other devices in the same product family, such as the ADS7955, which offers additional features and capabilities for enhanced measurement and monitoring applications.

When selecting complementary devices, ensure that their features and specifications align with your specific application requirements for optimal performance and compatibility.

Frequently Asked Questions

Q: What is the input voltage range for the ADS7844E?

A: The ADS7844E has an input voltage range of +/- 5V. For more details, refer to the datasheet for specific operating conditions and limitations.

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	QSOP
Pin Count !	20	Reach Compliance Code	compliant
ECCN Code	EAR99	HTS Code !	8542.39.00.01
Analog Input Voltage-Max	5.25 V	Conversion Time-Max	0.75 µs
Converter Type	ADC, SUCCESSIVE APPROXIMATION	JESD-30 Code	R-PDSO-G20
JESD-609 Code	e4	Length	8.65 mm
Linearity Error-Max (EL)	0.0488%	Moisture Sensitivity Level	2
Number of Analog In Channels	8	Number of Bits	12
Number of Functions	1	Number of Terminals	20
Operating Temperature-Max	85 °C	Operating Temperature-Min	-40 °C
Output Bit Code	BINARY	Output Format !	SERIAL
Package Body Material	PLASTIC/EPOXY	Package Code	SSOP
Package Equivalence Code	SSOP20,.25	Package Shape	RECTANGULAR
Package Style	SMALL OUTLINE, SHRINK PITCH	Peak Reflow Temperature (Cel)	260
Power Supplies !	3/5 V	Qualification Status !	Not Qualified
Sample Rate	0.2 MHz	Sample and Hold / Track and Hold	SAMPLE
Seated Height-Max	1.75 mm	Supply Voltage-Min	1.9 V
Supply Voltage-Nom	2.7 V	Surface Mount !	YES
Technology	CMOS	Temperature Grade !	INDUSTRIAL
Terminal Finish	NICKEL PALLADIUM GOLD	Terminal Form !	GULL WING
Terminal Pitch !	0.635 mm	Terminal Position	DUAL
Time@Peak Reflow Temperature-Max (s)	30	Width	3.9 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 ADS7844E PDF Download

FAQs

What is ADS7844E?

The ADS7844E is a 12-bit, 4-channel analog-to-digital converter (ADC) designed by Texas Instruments. It is suitable for applications requiring high-resolution conversion of multiple analog signals, such as data acquisition systems, industrial automation, and control systems.

How Does ADS7844E Work?

The ADS7844E operates by converting analog input voltages into digital data with 12-bit resolution for each of its four channels. It utilizes a successive approximation register (SAR) architecture to achieve accurate and reliable conversion results. The converter features a serial interface for communication with microcontrollers or digital signal processors.

How Many Pins does ADS7844E have and What are the Functions of the Pinout Configuration?

The ADS7844E is housed in a 16-pin SSOP (Shrink Small Outline Package) package. The pinout configuration includes:

VCC, GND: Power supply and ground pins.
AIN0-AIN3: Analog input channels.
REF+ and REF-: Reference voltage input pins.
CS, DOUT, DIN, CLK: Serial communication interface pins.
CONVST: Start of conversion input.
EOC: End of conversion output.

What are the Pros and Cons of ADS7844E?

Pros:

Multi-Channel Conversion: Provides 4-channel simultaneous conversion for efficient signal processing.
12-Bit Resolution: Offers high-resolution conversion for accurate measurement applications.
Serial Interface: Allows easy integration with digital systems for data transmission.
Low Power Consumption: Operates with low power consumption, suitable for battery-powered devices.
Compact Package: The SSOP package is space-efficient, saving board space in designs.

Cons:

Limited Channels: May not be suitable for applications requiring more than 4 analog input channels.
External Components: Requires additional external components for voltage reference and signal conditioning in some applications.
Resolution Trade-off: Higher resolution may result in slower conversion speeds in certain scenarios.

Are There Any Equivalents/Alternatives to ADS7844E for Recommendation?

The ADS7846 from Texas Instruments is a similar 4-channel ADC with touchscreen controller functionality.
Alternatives to the ADS7844E include the MCP3204 from Microchip Technology and the ADC121S101 from Analog Devices.