sensors

LTR-308ALS

Full part number: LTR-308ALS-01

Every spec below is cited to the manufacturer datasheet. Compare the closest alternatives, then ask the assistant what it means for your design.

00 — Overview

What the LTR-308ALS does

The LTR-308ALS-01 is an integrated low voltage I2C ambient light sensor in a 2x2mm chipled lead-free surface mount package. It operates from 1.7V to 3.6V across temperatures of -40 to +85 ºC. The device offers 16 to 20 bits effective resolution, a wide dynamic range from 0.01 to 157K lux, and a programmable interrupt function with hysteresis. It features built-in temperature compensation and automatic rejection for 50Hz/60Hz lighting flicker. This sensor is typically used to control display panel brightness in mobile, computing, and consumer devices. Its close-to-human-eye spectral response ensures accurate ambient light measurement under varying conditions.

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Start building with LTR-308ALS → Every number above is cited straight from the datasheet — ask what they mean for your design, and the assistant answers from the same source documents.
01 — Key specifications

Datasheet parameters

Datasheet parameters for LTR-308ALS
ParameterMinTypMaxConditionsSource
quiescent current — 110 µA — Max. duty cycle, Vdd = 1.8V, Gain 3x; 4.3. Electrical Specifications (VDD = 1.8V, Ta = 25°C, unless otherwise noted) Lite-On datasheet, p. 6 — 4.3. Electrical Specifications (VDD = 1.8V, Ta=25°C, unless otherwise…
supply voltage range 1.7 V — 3.6 V Lite-On datasheet, p. 6 — 4.2. Recommended Operating Conditions
operating temperature -40 °C — 85 °C Lite-On datasheet, p. 6 — 4.2. Recommended Operating Conditions
standby current — 1 µA — Shutdown Mode; 4.3. Electrical Specifications (VDD = 1.8V, Ta = 25°C, unless otherwise noted) Lite-On datasheet, p. 6 — 4.3. Electrical Specifications (VDD = 1.8V, Ta=25°C, unless otherwise…
sample rate — 10 Hz — Default ALS Measurement Rate = 100 ms; programmable 25 ms to 2000 ms (bits 2:0 of ALSMEAS RATE register 0x04) Lite-On datasheet, p. 12 — ALS_MEAS_RATE Register (0x04) (Read/Write)
02 — Alternatives

Closest matches to LTR-308ALS

TMP112 2.5× lower sample rate, 2.0× lower standby current, 1.9× higher operating temperature
TSL2560 2.2× higher quiescent current, 1.8× higher fall time, 1.8× higher rise time
LIS3MDL 6.1× higher rise time, 1.8× higher fall time, similar supply voltage range
MPU-6000 1.8× higher fall time, 1.8× higher rise time, 1.1× higher supply voltage range
LIS2DH12 10.0× lower quiescent current, 2.0× lower standby current, 1.1× lower supply voltage range
LIS3DH 10.0× lower quiescent current, 2.0× lower standby current, 1.1× lower supply voltage range
MAX31865 18.2× higher quiescent current, 5.5× higher sample rate, 1.9× higher operating temperature
ADXL345-EP 1.3× higher quiescent current, 1.1× higher operating temperature, 1.1× lower supply voltage range
03 — FAQ

Frequently asked questions

What is the maximum operating temperature for the LTR-308ALS-01?

The maximum operating temperature is 85 °C.

What is the maximum quiescent current under Max. duty cycle, Vdd = 1.8V, Gain 3x conditions?

The maximum quiescent current is 110 µA.

What is the default sample rate for the LTR-308ALS-01?

The default sample rate is 10 Hz.

What is the standby current in Shutdown Mode?

The standby current is 1 µA.

What is the supply voltage range for the LTR-308ALS-01?

The supply voltage range is 3.6 V.

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