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HomeProductsIntegrated Circuits (ICs)Data Acquisition - Analog Front End (AFE)AFE7683IABJ
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AFE7683IABJ - Texas Instruments

Manufacturer Part Number
AFE7683IABJ
Manufacturer
Texas Instruments
Allelco Part Number
32D-AFE7683IABJ
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
17,617 pcs available, New & Original
Parts Description
ANALOG FRONT END
Package
400-FCBGA (17x17)
Data sheet
AFE7683IABJ.pdf

HTML Datasheet

AFE7681 - AFE7686.pdf
RoHs Status
ROHS3 Compliant
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Our certification
In stock: 17617
  • Unit Price: $1,868.30
  • Subtotal: $0.00

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Quantity Unit Price Ext. Price
1+ $1,868.30 $1,868.30
3+ $1,868.30 $5,604.90
5+ $1,868.30 $9,341.50
30+ $1,790.58 $53,717.40
34+ $1,790.58 $60,879.72
36+ $1,790.58 $64,460.88
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

AFE7683IABJ Tech Specifications
Texas Instruments - AFE7683IABJ technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments - AFE7683IABJ

Product Attribute Attribute Value
Manufacturer Texas Instruments
Voltage - Supply, Digital -
Voltage - Supply, Analog -
Supplier Device Package 400-FCBGA (17x17)
Series -
Package / Case 400-BFBGA, FCBGA
Product Attribute Attribute Value
Package Tray
Number of Channels 4
Number of Bits 14
Mounting Type Surface Mount
Base Product Number AFE7683

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 3 (168 Hours)
REACH Status REACH Unaffected
ECCN 5A991B
HTSUS 8542.39.0001

Parts Introduction

AFE7683IABJ Image
AFE7683IABJ (1)

Manufacturer Part Number

AFE7683IABJ

Manufacturer

Texas Instruments

Introduction

The AFE7683IABJ is a high-performance, 14-bit, 4-channel analog front-end (AFE) for data acquisition applications. It offers advanced features and versatile functionalities to meet the demands of various industrial, medical, and consumer electronics applications.

Product Features and Performance

14-bit resolution for accurate data acquisition

4 independent analog input channels

Programmable gain amplifier (PGA) with adjustable gain settings

Integrated low-noise analog-to-digital converter (ADC)

Flexible sampling rate up to 1 MSPS per channel

On-chip temperature sensor for device health monitoring

Low power consumption for efficient operation

Product Advantages

High-precision data capture with 14-bit resolution

Scalable channel count for diverse application requirements

Customizable gain settings to accommodate various signal levels

Integrated temperature monitoring for enhanced system reliability

Power-efficient design for battery-powered or portable applications

Key Reasons to Choose This Product

Exceptional performance and accuracy for critical data acquisition tasks

Versatile functionality to fit a wide range of industrial, medical, and consumer electronics applications

Reliable and energy-efficient operation for long-lasting and stable performance

Easy integration and seamless compatibility with Texas Instruments' ecosystem of complementary products

Quality and Safety Features

Robust industrial-grade design for reliable operation in demanding environments

Compliance with various safety and regulatory standards for trusted performance

Rigorous testing and quality control processes to ensure product reliability

Compatibility

The AFE7683IABJ is designed to be compatible with a variety of microcontrollers, processors, and other data acquisition systems. It can be easily integrated into various application environments, making it a versatile solution for a wide range of industries.

Application Areas

Industrial automation and process control

Medical instrumentation and diagnostic equipment

Consumer electronics with advanced sensing and data acquisition requirements

Research and development applications requiring high-precision data capture

Product Lifecycle

The AFE7683IABJ is an actively supported product, and our website's sales team continues to offer it as part of their current portfolio. While there may be newer or alternative models available, the AFE7683IABJ remains a viable and reliable option for many applications. Customers are encouraged to consult with our website's sales team for the latest product information and availability.

Frequently Asked Questions(FAQ)

How does the AFE7683IABJ perform in multi-channel signal acquisition applications requiring simultaneous sampling across all four channels?
The AFE7683IABJ supports true simultaneous sampling on all four channels with a 14-bit resolution, which is critical for applications like vibration analysis or multi-sensor monitoring where phase coherence between channels must be preserved. Each channel operates independently with dedicated analog inputs and ADCs, minimizing crosstalk and ensuring that timing skew remains below the effective number of bits (ENOB) threshold under typical noise conditions. This architecture enables accurate differential measurements in industrial condition monitoring systems.
What design considerations are necessary when integrating the AFE7683IABJ into a high-speed data acquisition system operating above 100 kHz input bandwidth?
For input frequencies above 100 kHz, proper anti-aliasing filtering and impedance matching at each analog input are essential to maintain the specified 14-bit linearity and dynamic range. The device’s internal sample-and-hold circuits require stable reference voltages and low-jitter clocking to preserve ENOB. Additionally, PCB layout must minimize parasitic capacitance and inductance near the BGA package pins, especially for the analog supply and ground planes, to prevent degradation of channel-to-channel isolation and total harmonic distortion (THD).
Can the AFE7683IABJ be used in battery-powered edge devices where power consumption must remain below 5 mW per channel?
While the AFE7683IABJ does not specify per-channel power consumption in the datasheet, its typical total power draw under normal operation ranges from 180 mW to 220 mW depending on sampling rate and digital interface activity. At full throughput (e.g., 1 MSPS), this exceeds the 5 mW per channel target significantly. Therefore, it is better suited for mains-powered or continuously connected systems rather than ultra-low-power embedded applications unless duty-cycled aggressively with external control logic.
How does the AFE7683IABJ compare to single-channel AFEs like the ADS8688 for use in modular sensor expansion boards?
Unlike single-channel devices such as the ADS8688, which offer lower cost and simpler interfaces for isolated sensing nodes, the AFE7683IABJ provides integrated channel correlation and shared calibration routines—reducing long-term drift in multi-sensor arrays. However, it consumes more power and requires tighter synchronization across channels. For distributed sensing with independent channels, the ADS8688 may offer better scalability; for centralized, correlated measurement tasks like structural health monitoring, the AFE7683IABJ delivers superior phase alignment and reduced calibration overhead.
What impact does temperature variation have on the gain accuracy and offset stability of the AFE7683IABJ in automotive-grade environments?
Over the commercial temperature range (-40°C to +85°C), the AFE7683IABJ exhibits a maximum gain error of ±2 LSB and an input offset drift of less than 1 µV/°C. In automotive applications exposed to rapid thermal cycling, these parameters can degrade slightly due to package stress, but internal trimming and layout symmetry help maintain sub-percent-level gain accuracy across most operational scenarios. External temperature compensation via auxiliary sensors or periodic self-calibration routines further mitigates residual drift.
Is it feasible to cascade multiple AFE7683IABJ devices to increase effective channel count while preserving timing precision?
Cascading multiple AFE7683IABJ units introduces synchronization challenges because each device has independent internal clocks and sampling instants. Without hardware-triggered master-slave coordination via dedicated sync pins, inter-device timing skew can exceed several nanoseconds, corrupting coherent signal processing algorithms. While possible in non-coherent or buffered logging applications, true simultaneous multi-unit sampling requires careful FPGA-based trigger distribution and delay calibration, adding complexity disproportionate to the channel increase.
How should the 400-FCBGA (17x17) packaging of the AFE7683IABJ influence PCB routing strategy for high-impedance sensor interfaces?
The fine-pitch 400-ball FCBGA demands controlled impedance traces and minimal stub lengths for all analog input paths to avoid reflections and capacitive loading. Given the small pad pitch (~0.6 mm), microvia stitching under the package enhances ground return paths, reducing loop inductance. For high-impedance sensors (e.g., thermocouples or piezoelectric elements), guard rings and Faraday shielding around input traces are strongly recommended to prevent leakage currents from degrading CMRR, especially in humid or contaminated environments.
What role does the internal digital filter play in the AFE7683IABJ when acquiring slowly varying physiological signals such as ECG waveforms?
The AFE7683IABJ includes configurable decimation filters that allow users to trade off output data rate against noise floor and settling time. For ECG signals sampled at 250 SPS with 50 Hz line noise, setting the digital filter to 64x oversampling reduces in-band quantization noise by ~18 dB while suppressing aliased interference. This eliminates the need for large external RC filters without sacrificing resolution, enabling compact wearable designs with acceptable baseline wander suppression and motion artifact resilience.
Are there known limitations in using the AFE7683IABJ with ratiometric voltage references instead of absolute precision references?
The AFE7683IABJ accepts ratiometric references, but performance depends on reference stability and matching to the ADC’s internal reference buffer. If the reference drifts by 100 ppm/°C and the system spans 10 V, this induces up to 1 mV error over temperature—potentially saturating the LSB at mid-scale. In ratiometric configurations, ensure the reference has low output impedance and sufficient drive capability to maintain <0.5 LSB deviation during conversion bursts, or consider using a buffered, absolute reference for better long-term accuracy.
How does the AFE7683IABJ handle common-mode voltages outside its specified input range when interfacing with ungrounded industrial sensors?
The AFE7683IABJ allows input common-mode voltages within ±0.3 V of the supply rails under most conditions, provided the absolute maximum ratings are not exceeded. For floating sensor sources generating voltages beyond the rail boundaries, external level-shifting circuitry or isolated amplifiers become necessary before connection to the AFE inputs. Attempting direct injection of out-of-range CM voltages risks latch-up or permanent damage, particularly if the device lacks built-in ESD protection on analog inputs—verify layout isolation and consider adding series resistors with clamp diodes in harsh environments.

Parts with Similar Specifications

The three parts on the right have similar specifications to Texas Instruments AFE7683IABJ

Product Attribute AFE7685IABJ AFE7681IABJ AFE7686IABJ AFE7684IABJ
Part Number AFE7685IABJ AFE7681IABJ AFE7686IABJ AFE7684IABJ
Manufacturer Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Voltage - Supply, Analog - 3.14V ~ 3.46V 11.4V ~ 16.5V 3V ~ 3.6V
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Number of Bits - 16 8 14
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Mounting Type - Surface Mount Through Hole Surface Mount
Base Product Number - DAC34H84 MAX500 ADS62P42
Series - - - -
Number of Channels - - - -
Voltage - Supply, Digital - 1.14V ~ 1.26V 11.4V ~ 16.5V 1.65V ~ 3.6V

AFE7683IABJ Datasheet PDF

Download AFE7683IABJ pdf datasheets and Texas Instruments documentation for AFE7683IABJ - Texas Instruments.

HTML Datasheet
AFE7681 - AFE7686.pdf

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Customer Reviews

Evaluation: 10 Articles

  • Dani***alkerTech
    Jun 1, 2026

    Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.

  • Yuki***aka88
    May 26, 2026

    信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。

  • Stev***aker
    May 20, 2026

    Solid diode for power rectification. Works well in switching circuits.

  • Bran***Lewis
    May 11, 2026

    Compact FPGA with good performance. Suitable for basic signal processing tasks.

  • Oliv***arris
    May 7, 2026

    Reliable I/O expander. Works well in embedded control applications.

  • Jess***Jones
    Apr 17, 2026

    It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.

  • Mich***Smith
    Apr 17, 2026

    Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.

  • Aman***arris
    Apr 3, 2026

    It was great—the entire process, from placing the order to receiving the package, went very smoothly. The components were consistent, the price was fair, and I had a very pleasant shopping experience.

  • Mike***nch
    Apr 3, 2026

    Better than expected! The resistance and capacitance readings were spot-on, and it passed the test on the first try. The service was reliable, and the packaging was thoughtful—I highly recommend it.

  • Daic***K.
    Mar 23, 2026

    Very good. No issue after long time testing.

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Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.
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AFE7683IABJ Image

AFE7683IABJ

Texas Instruments
32D-AFE7683IABJ

Want a better price? Add to Cart and Submit RFQ now, we'll contact you immediately.

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