Part: AS7341 — ams OSRAM Group

Type: 11-Channel Multi-Spectral Digital Sensor

Description: An 11-channel spectrometer with 8 visible, 1 near-infrared (NIR), and 1 clear channel, plus an integrated flicker detection channel, covering approximately 350nm to 1000nm, available in an ultralow profile 3.1mm x 2mm x 1mm package.

Operating Conditions:

• Supply voltage: 1.7–2.0 V
• Operating temperature: -30 to 70 °C

Absolute Maximum Ratings:

• Max supply voltage: 2.2 V
• Max output terminal current: 20 mA
• Max operating ambient temperature: 85 °C
• Max storage temperature: 85 °C

Key Specs:

• Active mode supply current: 210 μA (typ) at VDD=1.8V, TA=25°C
• Idle mode supply current: 35 μA (typ) at VDD=1.8V, TA=25°C
• Sleep mode supply current: 0.7 μA (typ) at VDD=1.8V, TA=25°C
• SCL, SDA input high voltage: 1.26 V (min)
• SCL, SDA input low voltage: 0.54 V (max)
• F1 channel center wavelength: 415 nm (typ)
• NIR channel center wavelength: 910 nm (typ)
• Half cone angle: 40 deg (typ)

Features:

• 8 optical channels distributed over the visible spectral range + clear and NIR channels
• Integrated ambient light flicker detection on chip and light source detection through NIR channel
• Electronic shutter/trigger and synch control via GPIO
• GPIO can be used as input for external photodiodes
• Low power consumption and efficient I²C communication
• Configurable sleep mode to <5μA
• Interrupt-driven device

Applications:

• High-precision reflective color point and spectral measurements
• Fluid color, turbidity or reagent based constituent analysis
• Spectral power distribution and passive ambient CCT measurement for home and building automation
• High-end display color management

Package:

• OLGA-8 (3.1mm x 2mm x 1mm)

The benefits and features of AS7341, 11-Channel Multi-Spectral Digital Sensor, are listed below:

Figure 1: Added Value of Using AS7341

Figure 1: Added Value of Using AS7341

• High-precision reflective color point and spectral measurements
• Fluid color, turbidity or reagent based constituent analysis
• Spectral power distribution and passive ambient CCT measurement for home and building automation
• High-end display color management

AS7341 OLGA-8 Pinout

Notes

• Pin Type Abbreviations: DI = Digital Input; D_I/O = Digital Input/Output; DO_OD = Digital Output, open drain; P = Power; A_I/O = Analog Input/Output
• INT pin (7): Open-drain output requires external pull-up resistor to 1.8V
• Power pins: VDD (1), GND (3), and PGND (5) must all be properly connected
• I²C interface: SCL (2) and SDA (8) form the I²C communication bus

All limits are guaranteed. The parameters with Min and Max values are guaranteed with production tests or SQC (Statistical Quality Control) methods. All voltages with respect to GND/PGND. Device parameters are guaranteed at VDD=1.8V and TA=25°C unless otherwise noted.

Figure 6: Electrical Characteristics of AS7341

Stresses beyond those listed under 'Absolute Maximum Ratings' may cause permanent damage to the device. These are stress ratings only. Functional operation of the device at these or any other conditions beyond those indicated under 'Operating Conditions' is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. All voltages with respect to GND/PGND. Device parameters are guaranteed at VDD=1.8V and TA=25°C unless otherwise noted.

Figure 5 Absolute Maximum Ratings of AS7341

Figure 5 Absolute Maximum Ratings of AS7341

Figure 92 shows an example how AS7341 can be utilized to interface to an external InGaAs photodiode. GPIO2 is mapped to an internal ADC.

• (1) All dimensions are in millimeters. Angles in degrees.
• (2) Dimensioning and tolerance conform to ASME Y14.5M-1994.
• (3) This package contains no lead (Pb).
• (4) This drawing is subject to change without notice.