RY1811 is a small-sized, single channel, voltage output current detection amplifier launched by Rongying Electronics. It supports a wide common mode voltage range of -0.3V to 36V, zero drift, μ V level ultra-low offset, small size, and multiple gain configurations, making it an ideal choice for high-precision current sampling. It fully supports high side measurement, low side measurement, and bidirectional current detection requirements.
Core Features
1. Ultra wide common mode voltage: -0.3V~36V
RY1811 can accurately detect the voltage drop across the sampling resistor regardless of the supply voltage.
·Support high side, low side, and bidirectional current detection
·36V high voltage system can be used directly
·Significantly simplifying peripheral circuits and reducing system complexity
2. Zero drift architecture, high-precision across all temperature ranges
Adopting advanced zero drift topology structure to achieve ultimate precision performance.
·Unbalanced voltage: ± 15 μ V (typical value)
·Imbalance drift: 0.2 μ V/℃ (maximum)
·Gain error: ± 0.6%
·Gain drift: 10ppm/℃ (maximum)
·Common mode rejection ratio: 150dB (typical value)
3. Ultra low power consumption, compatible with battery power supply system
·Single power supply: 2.7V~5.5V
·The maximum static current is only 250 μ A
·Low power devices, portable products
The battery powered system can be used worry free
4. Multiple gain options, suitable for full range current detection
·RY1811 can provide multiple fixed gains (20V/V, 50V/V, 100V/V), with simple peripheral circuits and direct matching of shunt resistors.
Flexible packaging
·Small size, suitable for high-density layout
·RY1811 single channel
·SC70-6:2.1 × 2.3mm, ultra miniature package
Ultimate compression of space
High reliability
·Working temperature: -55 ℃~+125 ℃
· ESD（HBM）：±5000V
·Track to track output, strong driving capability
·Support Kelvin four wire connection
Effectively eliminate measurement errors caused by PCB routing
Application scenarios
·Power management and monitoring
·Communication equipment and server current detection
·Motor control and protection
·Closed loop current feedback control system
·Battery Management System (BMS), Charge and Discharge Detection
·Automated control, high-precision measuring instruments
RY1811 is a high-performance, highly reliable, and easy-to-use current detection amplifier that easily solves various pain points in current sampling with its advantages of wide common mode voltage, zero drift, low power consumption, and multiple packaging. We can provide stable, accurate, and low-cost current detection solutions for both motor control and high demand military scenarios.
