LT LTC1446IS

Mfr. Part

LTC1446IS

Manufacturer

LT (Linear Technology, now part of Analog Devices). Y-IC is a quality distributor for this brand and we will provide you with the best products, fast delivery, and professional service

Detailed Description

LTC1446IS is a dual 12-bit, micropower DAC with a simple serial interface in an 8-lead SOIC package. It is designed for precision, low-power voltage output control from a single 2.7 V to 5.5 V supply. The device family is known for rail-to-rail outputs, small footprint, and easy hookup to common microcontrollers. The suffix IS indicates industrial temperature range and SOIC package

Key Features

Dual 12-bit DAC channels for fine resolution control

Simple serial interface for easy MCU connection

Single-supply operation, typically 2.7 V to 5.5 V

Rail-to-rail voltage outputs for maximum swing

Low power consumption suitable for battery devices

Power-on reset behavior defined by variant (zero or mid-scale depending on sub-version, see datasheet)

Industrial temperature range for robust use

Compact 8-lead SOIC for tight PCB layouts

Key Advantages

Two precise DACs in one small IC, reducing component count

Clean, direct digital-to-analog conversion with high resolution

Low current draw extends battery life and reduces heat

Simple wiring and software interface reduces development time

Proven LT/ADI reliability and long-term availability

Excellent size-to-performance ratio for space-constrained designs

Packaging

Type – SOP8 (SOIC-8)

Case code – 611 vendor notation as provided

Body size – approximately 4.9 mm x 3.9 mm x 1.5 mm typical for SOIC-8

Pin pitch – 1.27 mm

Material – epoxy mold compound with copper leadframe, lead-free finish options available

MSL – typically Level 1 for SOIC packages

Pin configuration – common LTC1446 family mapping includes power, ground, serial data, serial clock, chip select or load, and two voltage outputs. Example pin names used in the family include VCC, GND, DIN, SCLK, CS or LDAC, VOUTA, VOUTB, SHDN. Always verify exact pinout in the datasheet for LTC1446IS

Thermal characteristics – typical SOIC-8 thermal resistance Theta-JA about 100 to 150 °C/W on a JEDEC test board. Industrial grade operation generally from -40 °C to +85 °C

Electrical properties (family typical) – 12-bit resolution, rail-to-rail outputs, INL and DNL near 1 LSB typical, settling time in the microseconds range, low quiescent current. Confirm exact numbers in the LTC1446IS datasheet

Lifecycle

Current status – active and widely used, mature but not nearing discontinuation based on typical availability of the LTC1446 family

Equivalent or alternative models – consider these for form, fit, and function comparison

- LTC1446A (same family, higher accuracy variant)

- ADI dual 12-bit DACs such as AD5627R or AD5627 (I2C, integrated reference option)

- TI DAC7562 or DAC8162 (dual 12-bit or 16-bit, SPI)

- Microchip MCP4922 (dual 12-bit, SPI, external reference)

- Maxim MAX517 or similar dual 12-bit DACs

If you need drop-in equivalence or pin-to-pin clarity, contact our sales team via the Y-IC website for detailed cross-reference and availability

Key Application Areas

Industrial control loops and process setpoints

Precision instrumentation and sensor trimming

Test and measurement equipment

Portable and battery-powered devices

Programmable reference generation

Motor control, actuator drivers, and valve positioning

Audio level control and signal conditioning

Data acquisition systems and microcontroller-based analog outputs

Datasheet

Our website hosts the most authoritative and up-to-date datasheet for LTC1446IS. We recommend downloading it directly from this product page for exact pinout, timing, and electrical specifications

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