Linsi Micro LS12D105T: 12-Bit 105MSPS ADC, Pin-to-Pin AD9235 Replacement
Linsi Micro launches the LS12D105T 12-bit ADC with 5-105MSPS sampling, available in 28-pin TSSOP and 32-pin QFN packages, fully pin-to-pin compatible with ADI AD9235 for seamless domestic substitution without PCB changes.
HSY New Partner | Linsi Micro LS12D105T: 12-Bit 105MSPS ADC, Pin-to-Pin AD9235 Replacement
HSY Product Series · Linsi Micro
Brand Overview
Linsi Microelectronics (Shenzhen) Co., Ltd., headquartered in Nanshan, Shenzhen, is a signal-chain analog IC firm focused on high-quality domestic ADC chips. The company has been recognized among China's Top 100 IC Design Firms (2021), listed on Zero2IPO Venture 50, and named "2024 Outstanding Domestic Signal-Chain IC Brand" by the electronics components industry. It completed a multi-million RMB funding round in 2020.
Linsi Micro offers a comprehensive high-speed ADC portfolio spanning 8-bit to 12-bit resolution at 50MSPS to 2.5GSPS, alongside CIS sensor analog front-ends, BMS analog front-ends, and high-side MOS drivers — making it one of the few domestic firms with volume production capability in mid-to-high-speed ADCs.
LS12D105T Key Feature: Full P2P Compatibility with AD9235
The LS12D105T is the 12-bit member of Linsi Micro's 105MSPS ADC family, built on a multi-stage differential pipeline architecture with output error correction logic, guaranteeing no missing codes across the full operating temperature range. Its standout advantage:
Fully pin-to-pin compatible with ADI's AD9235, available in 28-pin TSSOP and 32-pin QFN (LFCSP) packages — customers can achieve domestic substitution without any PCB layout changes.
Product Family Comparison
The LS12D105T belongs to the 105MSPS ADC series, with three resolution variants:
- Parameter | LS14D105 | LS12D105T | LS10D105
- Resolution | 14 bit | 12 bit | 10 bit
- Sample Rate | 5–105 MSPS | 5–105 MSPS | 5–105 MSPS
- Typ. Power | 310 mW | 260 mW | 220 mW
- SNR (fin=3.13MHz) | 69 dB | 67 dB | 60 dB
- SFDR (fin=3.13MHz) | 86 dB | 80 dB | 72 dB
- DNL | ±0.75 LSB | ±0.75 LSB | ±0.75 LSB
- INL | ±1.5 LSB | ±1 LSB | ±1 LSB
- Offset Voltage | ±1.5 mV | ±3 mV | ±3 mV
Technical Specifications
- Power Supply: Analog AVDD 2.85V–3.45V, digital DRVDD 1.7V–3.45V, single 3V supply design
- Input: Built-in high-performance true-differential sample-and-hold amplifier (SHA), supports single-ended or fully differential inputs, -3dB input bandwidth of 200 MHz, common-mode input range selectable between 0–2V or 0.6–2.4V
- Flexible Full-Scale Range: Adjustable ADC full-scale voltage at 1.2Vpp, 1.6Vpp, or 2Vpp
- Digital Interface: Parallel CMOS output, compatible with 1.8V/2.5V/3V/3.3V logic levels
- Accuracy: DNL ±0.75LSB, INL ±1LSB, no missing codes over full temperature range
- Package Options: 28-pin TSSOP / 32-pin QFN (LFCSP), both pin-compatible with AD9235
Typical Applications
With 200MHz input bandwidth and excellent dynamic performance, the LS12D105T is well-suited for:
- Communications: IF sampling receivers, software-defined radio, base station RF front-ends
- Instrumentation: High-speed data acquisition cards, oscilloscope front-ends, spectrum analysis
- Medical Imaging: Ultrasound imaging, CT detector signal chains
- Industrial Control: Motor current sensing, vibration monitoring, laser ranging
HSY Perspective
Linsi Micro is a newly added analog IC line in HSY's portfolio. For customers with existing AD9235 designs seeking domestic BOM substitution, the LS12D105T offers the smoothest migration path — no PCB changes, no peripheral circuit modifications, no software interface rework.
The series also includes 14-bit and 10-bit variants to match different accuracy and power requirements. HSY stocks samples and technical documentation — contact us for datasheets and evaluation boards.
Sources:
- Linsi Micro official website: http://www.linsimicro.com/
- LS12D105T product press release (Linsi Micro, 2023-10)