| Image | Part Number | Description / PDF | Quantity | Rfq |
|---|---|---|---|---|
 |
Analog Devices, Inc. |
IC AFE 2 CHAN 14BIT 40LFCSP |
1709 |
|
 |
Analog Devices, Inc. |
IC AFE 1 CHAN 24BIT 24SOIC |
194 |
|
 |
Analog Devices, Inc. |
BROADBAND MODEM MIXED-SIGNAL FRO |
2697 |
|
 |
Analog Devices, Inc. |
SINGLE CHN PLC SIGMA DELTA ADC+A |
164 |
|
 |
Analog Devices, Inc. |
FRONT-END PROCESSOR FOR TELECOM |
735 |
|
 |
Analog Devices, Inc. |
LOW-POWER ANALOG FRONT-END |
815 |
|
 |
Analog Devices, Inc. |
IC AFE 1 CHAN 24BIT 24TSSOP |
142 |
|
 |
Analog Devices, Inc. |
IC AFE 6 CHAN 16BIT 44TQFP |
209 |
|
 |
Analog Devices, Inc. |
LOW POWER, FIVE ELECTRODE ELECTR |
399 |
|
 |
Analog Devices, Inc. |
CCD DIGITIZER WITH CLAMP |
570 |
|
 |
Analog Devices, Inc. |
IC AFE 1 CHAN 24BIT 24SOIC |
116 |
|
 |
Analog Devices, Inc. |
IC AFE 4 CHAN 14BIT 16LFCSP-WQ |
2998 |
|
 |
Analog Devices, Inc. |
ADC, DELTA-SIGMA, 19-BIT, 2-CH |
581 |
|
 |
Analog Devices, Inc. |
6-CHANNEL AFE PROCESSOR |
978 |
|
 |
Analog Devices, Inc. |
IC AFE 1 CHAN 16BIT 20SOIC |
0 |
|
 |
Analog Devices, Inc. |
MODEM AFE V.22BIS - V.92 |
5000 |
|
 |
Analog Devices, Inc. |
IC AFE 1 CHAN 16BIT 20SSOP |
71 |
|
 |
Analog Devices, Inc. |
IC 14BIT 80MSPS 56LFCSP |
2000 |
|
 |
Analog Devices, Inc. |
IC, FRONT-END PROC - SPEECH/TELE |
1762 |
|
 |
Analog Devices, Inc. |
IC AFE 1 CHAN 24BIT 24TSSOP |
0 |
|
Analog Front End (AFE) ICs are critical components in data acquisition systems, serving as the interface between analog sensors/transducers and digital processing units. They perform signal conditioning, amplification, filtering, and analog-to-digital conversion (ADC) driving functions. AFEs ensure signal integrity and measurement accuracy in applications ranging from medical devices to industrial automation, playing a pivotal role in modern precision electronics.
| Type | Functional Features | Application Examples |
|---|---|---|
| Precision AFE | Low noise, high linearity, programmable gain amplifiers (PGA) | Medical imaging equipment, precision weighing scales |
| High-Speed AFE | Wide bandwidth (>100MHz), fast settling time | Ultrasound systems, radar receivers |
| Integrated AFE | Complete signal chain in single chip (PGA + ADC + DSP) | Smart sensors, IoT edge devices |
| Isolated AFE | Galvanic isolation with >5kV rating | Power grid monitoring, industrial safety systems |
Typical AFE architecture includes:
Advanced designs integrate calibration circuits and fault detection modules.
| Parameter | Description | Importance |
|---|---|---|
| Effective Number of Bits (ENOB) | Actual ADC resolution considering noise/distortion | Determines measurement accuracy |
| Signal-to-Noise Ratio (SNR) | Ratio of desired signal to background noise (dB) | Impacts dynamic range |
| Input Referred Noise | Amplifier noise converted to input equivalent (nV/ Hz) | Limits minimum detectable signal |
| Common-Mode Rejection Ratio (CMRR) | Ability to reject common-mode interference (dB) | Essential for noisy environments |
| Power Supply Rejection Ratio (PSRR) | Noise suppression from power rails (dB) | Ensures stable operation |
Major application areas include:
| Manufacturer | Representative Product | Key Features |
|---|---|---|
| Analog Devices | AD7768 | 24-bit Sigma-Delta ADC with 2 V offset error |
| Texas Instruments | ADS1298 | 8-channel ECG frontend with built-in lead-off detection |
| STMicroelectronics | LTC2358 | 18-bit SAR ADC with 1MSPS throughput |
| NXP Semiconductors | MCP3911 | 6-channel energy measurement AFE with harmonic analysis |
Key considerations when selecting AFEs:
Current development trends include: