Data Sheet

ams Datasheet Page 13

[v1-01] 2017-Mar-17 Document Feedback

AS7262 − Detailed Description

Figure 14:

AS7262 Functional Block Diagram

6-Channel Visible Spectral_ID Detector

The AS7262 6-channel Spectral_ID is a next-generation digital

spectral sensor device. Each channel has a Gaussian filter

characteristic with a full width half maximum (FWHM)

bandwidth of 40nm.

The sensor contains analog-to-digital converters (16-bit

resolution ADC), which integrate the current from each

channel’s photodiode. Upon completion of the conversion

cycle, the integrated result is transferred to the corresponding

data registers. The transfers are double-buffered to ensure that

the integrity of the data is maintained.

Interference filters enable high temperature stability and

minimal lifetime drift. Filter accuracy will be affected by the

angle of incidence which itself is limited by integrated aperture

and internal micro-lens structure. The aperture-limited field of

view is ±20.0° to deliver specified accuracy.

Detailed Description

RC Osc

Spectral_ID

Engine

VDD1 VDD2

GND

16MHz

MISO

SCK

MOSI

CSN_SD

RESN

°C

SPI

Master

TX / SDA_S

RX / SCL_S

UART / I

LED_DRV

Multi

Spectral

Sensor

LED_IND

I2C_ENB

INT