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AFE4490RHAR Texas Instruments AFE4490RHAR is a 1-channel 22-bit analog front end IC with SPI interface, 110 dB dynamic range, and surface mount 40-VQFN package.
Mfr Part #:

AFE4490RHAR

Available from 3 distributors
Mfr Name: Texas Instruments
Texas Instruments
Texas Instruments AFE4490RHAR is a 1-channel 22-bit analog front end IC with SPI interface, 110 dB dynamic range, and surface mount 40-VQFN package.
✓ Total Stock: 21,222 pcs
$ Price Range: $9.84

AFE4490RHAR Available from 3 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Smaxon Electronics ✓
Non-Authorised Inventory information
15,000 pcs
On Request
15000 pcs On Request 1 On Request On Request 1815+5 On Request On Request
Xingangxin ✓
Non-Authorised Inventory information
3,209 pcs
On Request
3209 pcs On Request 1 On Request On Request On Request On Request On Request
Romaks Technologies ✓
Non-Authorised Inventory information
3,013 pcs
On Request
3013 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

AFE4490RHAR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Medical Grade
Mounting Type
Number of Bits
Number of Channels
Operating Temperature Range
Supplier Device Package
Voltage
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AFE4490RHAR Description

Short technical summary and product information.

The Texas Instruments AFE4490RHAR is a single-channel 22-bit resolution analog front end (AFE) integrated circuit designed for precision data acquisition applications. It features an SPI interface for communication and offers a wide dynamic range of 110 dB with an input-referred noise of 50 pA_rms typical at 5 µA photodiode current.

 

The AFE operates with a receiver supply voltage range of 2.0 V to 3.6 V and a transmitter supply of 3.0 V or 5.25 V. It provides programmable LED current ranges of 50 mA, 75 mA, 100 mA, 150 mA, and 200 mA with 8-bit resolution, making it suitable for optical sensing systems.

 

The device is housed in a 40-VFQFN exposed pad package (40-VQFN 6x6 mm) for surface mount assembly and supports an industrial operating temperature range of -40°C to 85°C. The part is RoHS3 compliant and REACH unaffected.

AFE4490RHAR Quick Information

Product Type: Analog Front End (AFE)
Canonical Name: AFE4490RHAR Integrated Analog Front-End for Pulse Oximeters
Subcategory: Medical AFE

AFE4490RHAR Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

AFE4490RHAR Estimated Pricing

Qty Low High
1+ $9.84 $9.84

Estimated market price range - modelled values for guidance only, not live distributor offers.

AFE4490RHAR Features

  • Single channel 22-bit resolution AFE.
  • SPI digital interface for configuration.
  • 110 dB dynamic range for precise sensing.
  • Input-referred noise 50 pA_rms typical.
  • Programmable LED current up to 200 mA.

AFE4490RHAR Applications

  • Clinical fingertip pulse oximetry SpO2 monitoring
  • Integrated analog front-end for biosensing applications
  • Wearable patient monitoring equipment
  • Portable diagnostic medical devices
  • Transmissive and reflective pulse oximeter designs

AFE4490RHAR FAQs

6 frequently asked questions generated from this part’s specifications.
What is the resolution of the AFE4490RHAR?

The AFE4490RHAR has a 22-bit resolution (Number of Bits).

How many channels does this AFE have?

This AFE has 1 channel (Number of Input Channels = 1).

What interface does the AFE4490RHAR use?

It uses the SPI interface.

What is the dynamic range of the AFE4490RHAR?

110 dB.

What is the operating temperature range?

-40°C to 85°C.

What is the package type?

40-VFQFN Exposed Pad (40-VQFN 6x6).

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