LINEARIN / Review of the top 10 new products in 2024
In today's rapidly evolving tech landscape, every subtle innovation has the potential to lead industry transformation. For LINEARIN in 2024, it is a year filled with challenges and opportunities. This year, LINEARIN not only made significant breakthroughs in technology research and development but also shone brightly with the launch of new products, infusing new vitality into China's analog chip market.
LINEARIN has always adhered to a customer-centric approach, guided by market needs, continuously innovating products and services to meet customer demands and expectations. In 2024, LINEARIN leveraged its robust technical capabilities and forward-looking market insights to successfully launch a series of groundbreaking new products. This retrospective will highlight 10 products released in 2024, showcasing some of LINEARIN's key R&D achievements for the year.
Looking ahead, LINEARIN will continue to uphold the vision of "creating leading China analog chips through innovation," constantly innovating and contributing more wisdom and strength to the development of China's analog chips. We believe that in the near future, LINEARIN will once again lead the future development of the electronics industry with outstanding product performance and cutting-edge technological innovation.
PART 01-LTA37/237
Bipolar operational amplifier
36V，Precision, Low Noise, High Speed Operational Amplifier
Product presentation:
The LTA37 has been redesigned and optimized for circuits with gains greater than 5, achieving high performance as per the specifications. The LTA37 increases the conversion rate to 17V/µs and the gain bandwidth product to 82 MHz. At the same time, the LTA37 offers lower offset and drift compared to the OP27, as well as higher speed and lower noise. A low offset of up to 50µV and a maximum drift of 0.5µV/℃ at 1kHz make the LTA37 an ideal choice for precision instrument applications. With extremely low noise at 3nV/√Hz@1kHz, a 1/f noise corner frequency as low as 5Hz, and a high gain of 5.6 million times, it allows for precise high-gain amplification of low-level signals. By using a bias current elimination circuit, it achieves low input bias current and offset current.
PART 02 -LTS11x
Analog interface: V/I, V/V
Voltage To Current Converter/Transmitter)
LTS110
LTS110 is a V/I converter that can linearly convert the analog voltage into 0-25mA/4-20mA; users can set the desired output range through the external Rset; the external power transfer can be done through the transistor; LDO is the internal reference output, default output 2.5V; simplify the V/I conversion design.
LTS111
LTS111 is a V/I converter that can linearly convert analog voltage into 0-20mA/4-20mA; users can set the desired output range through an external Rset; power transfer can be achieved externally via PMOS; the LDO can adjust the output range through peripheral resistors, within 3V-5.5V; simplifying V/I conversion design.
LTS115/116/117
LTS115/116/117 is a two-line V/I converter, mainly used to match the V/I circuit implemented by the opamp scheme, SOIC-8 package volume, and the small volume version of MSOP-8 package, which has great cost and area advantages compared with the opamp scheme. The output current is determined by IIN,
Formula: IOUT = 100×IIN. It meets the requirements of some users for low cost and high performance of 4-20mA.
PART 03-LTP7792
Fast transient response CMOS LDO
6.5 V, 2 A, Ultralow Noise, High PSRR, CMOS LDO Regulators
Product presentation:
LTP7792 is a CMOS low-dropout linear regulator (LDO) with an operating voltage range of 2.3 V to 6.5 V and can deliver up to 2 A of output current. This high-output-current LDO is particularly suitable for high-performance analog and mixed-signal circuits that require a conversion from 6 V to 1.2 V. The device offers excellent power supply rejection ratio and low noise, achieving superior voltage and load transient response with just one 4.7 µF small ceramic output capacitor.
The 0.7% output accuracy is particularly suitable for sensitive analog low-voltage devices (such as ADCs, DACs, and VOCs). With a 5 µV rms noise performance and high PSRR (60dB @100K), it can power noise-sensitive devices in applications like high-speed communication, video, medical, or test and measurement. Its extremely fast transient response is also ideal for powering FPGAs and high-speed processors.
PART 04 -LTD226x
24-bit ADC
25-High-precision, Multi-channel, 40-kSPS, 24-bit, Delta-sigma ADCs
Product presentation:
LTD2261 is a 24-bit, multi-channel, high-precision, high-speed Δ-Σ ADC chip. In addition to providing a high-performance four-stage Δ-Σ modulator and a programmable digital filter main path, the product also integrates a PGA, high-precision voltage reference, two independent precision current sources, and temperature sensors on-chip. It also offers practical functions such as voltage threshold monitoring, on-off detection, GPIO, 50/60Hz power frequency notch filtering, and CRC data verification, providing a highly integrated system-level single-chip solution for industrial control applications like RTD and thermocouple temperature measurement.
PART 05 -LTP7293
3A low input voltage, low noise LDO
3A output, Low Vin, Low Noise Linear Regulator
Product presentation:
The LTP7293 from LINEARIN is a low-noise, low-dropout small linear regulator (LDO). It has a minimum input voltage of 1.1V and requires only a 60mV voltage drop to provide 3A current. With a noise performance of 2.2μV and up to 65dB PSRR (at 10kHz), it effectively suppresses switching power supply noise while improving efficiency. No external bias is required, making it suitable for noise-sensitive, high-current, wide-dynamic-range high-speed digital systems, RF, ADC/DAC, and more, offering a compact power solution.
PART 06 -LTP850x
Small package isolated power supply drive products
Transformer Driver for Isolated Power Supplies
Product presentation:
LTP850x is a low-cost isolation power supply solution that provides an option for small power supply applications such as CAN, 485 and other isolated communication interfaces.
This is essentially a monolithic oscillator/power driver, consisting of an oscillator and a gate drive circuit. The gate drive circuit provides complementary output signals to drive a half-bridge power switch. Internal logic ensures safe switching between the two switches, allowing the drive of a small center-tapped transformer. The primary input can be either a 3.3 V or 5 V DC power supply, and the secondary coil can be matched according to the transformer turns ratio to provide any isolation voltage. After stabilization by a subsequent LDO, stable voltage output can be achieved.
PART 07 -LTP8036
Programmable power monitoring circuit
Ultra-low-power, High-precision, Programmable-delay Supervisory Circuit
Product presentation:
LTP8036 is a low-power, high-precision, delay-programmable power monitoring circuit. The device monitors the supply voltage of μC / FPGA or other critical components through the SENSE pin. When the voltage at the SENSE end falls below the threshold, the open-drain output of the nRESET pin quickly switches to a low level, allowing the processor to execute subsequent protective measures. The logic state of the nRESET can also be manually controlled via the nMR input pin. After both trigger states are cleared, the nRESET will return to a high level after a user-defined delay time, which can be freely set between 1.25ms and 10s. The device has a static current of only 0.6uA and offers both fixed voltage and adjustable voltage versions. The fixed voltage version covers from 0.9V to 5V, while the adjustable voltage version can cover all voltages above 0.405V through an additional resistor divider.
PART 08 -LTA605x
25MHz high voltage swing single power supply voltage feedback operational amplifier
250 MHz, High Slew Rate, RRO, CMOS Amplifiers
Product presentation:
The LTA605x series is a single-supply voltage feedback operational amplifier with a small-signal bandwidth of 250MHz and a conversion rate of 190 V/μs. It is suitable for +3.3V, +5V, and ±5V power supplies, with input common-mode voltage ranges extended to Vs--0.1V and Vs+ -1V, and output voltage range extended to the power rail. The wide dynamic range is particularly advantageous in low-voltage applications. The LTA605x also offers excellent signal quality with low distortion and fast settling time (13.5 ns to 0.1%). This makes them ideal for single-supply buffers.
PART 09 -LTD2X20
16/24-bit multi-channel, low-power Δ-Σ ADC
4-channel, low-power, integrated on-chip PGA, reference, and current source Δ-Σ type ADC
Product presentation:
The LTD2X20 is a 16 (LTD2120)/24-bit (LTD2220), multi-channel, small package, low-power Δ-Σ ADC chip. Under continuous analog-to-digital conversion, the minimum operating current required is only 120 μA, with a maximum support for a 2k SPS conversion rate. It offers up to 128 times on-chip gain and supports 50 and 60Hz power frequency notch filtering. The functional modules of the device also include: a low-temperature drift high-precision on-chip reference, two highly matched excitation current sources, a high-precision clock, a low-side switch, and a high-precision temperature sensor. Using the LTD2X20 can significantly reduce system solution costs, achieving the goal of high-precision testing at the system level with a single chip.
PART 10-LTA290x
36V, low power consumption general comparator
36V General-purpose Low power Comparators
Product presentation:
The LTA290x series is a 36V industrial-grade general-purpose comparator. The input common-mode voltage range extends to 100mV beyond the negative power rail. The output stage uses an open-drain structure with a transmission delay of 1.2µs (when Vod= ±50mV). It features extremely low static power consumption (250µA/CH). This series offers dual-channel (LTA2903) and quad-channel (LTA2901) versions, supporting various package options including SOIC-8/MSOP-8/TSSOP-8/DFN3*3-8L/SOIC-14/TSSOP-14.
