Shenzhen Mingjiada Electronics Co., Ltd.——Long-term supply of TI (TLV9104IDR) 16V, 1.1MHz quad-channel low-power operational amplifier
Texas Instruments (TI) TLV9104IDR is a high-performance four-channel operational amplifier optimised for modern embedded systems and portable devices, in space-constrained, power-sensitive multi-channel applications with excellent performance.
The TLV9104IDR integrates four independent high-performance operational amplifiers in a compact SOIC-14 package. Based on TI's advanced CMOS process, it combines ultra-low quiescent power consumption of only 75µA per channel with a wide supply voltage range of up to 16V. The device offers rail-to-rail input and output capability, enabling it to maximise signal dynamic range in either single- or dual-supply systems. The design focuses on maintaining good accuracy (low Vos, low Ib), sufficient bandwidth (1.1MHz) and stability (unit gain stabilisation) at low power consumption, with excellent electromagnetic interference (EMI) rejection.
Amplifier Type: Standard
Number of Circuits: 4
Output Type: Rail-to-Rail
Slew Rate: 4.5V/µs
Gain Bandwidth Product: 1.1 MHz
Current - Input Bias: 10 pA
Voltage - Input Offset: 300 µV
Current - Supply: 115µA (x4 Channels)
Current - Output / Channel: 80 mA
Voltage - Supply Span (Min): 2.7 V
Voltage - Supply Span (Max): 16 V
Operating Temperature: -40°C ~ 125°C (TA)
Mounting Type: Surface Mount
Package / Case: 14-SOIC (0.154", 3.90mm Width)
Supplier Device Package: 14-SOIC
TLV9104IDR core product features
four-channel integration: single-chip integration of four independent op-amps, significantly reducing the PCB area occupied and system material costs, simplify the layout and wiring.
Ultra-low power consumption: A quiescent current of only 75µA per channel is ideal for battery-powered and portable devices, dramatically extending device uptime.
Wide supply voltage range (16V): Compatible with industrial applications ranging from standard 3.3V and 5V systems to higher voltages such as 12V and 15V, providing design flexibility.
Rail-to-Rail Input/Output (RRIO):
Input RRI: Input signals can be close to or even at the supply rails (typically within 100mV below the ground rail and 100mV above the positive rail), facilitating the handling of signals close to the supply voltage.
Output RRO: Under moderate load, the output voltage can swing close to the supply rails (typically within tens of millivolts of the rails), providing maximum output signal amplitude.
Medium Bandwidth (1.1MHz): 1.1MHz gain bandwidth product makes it ideal for processing sensor signals (temperature, pressure, light), audio signals, low to medium speed data acquisition, active filters and control loop applications.
High accuracy:
Low input offset voltage (0.5mV max) reduces DC errors.
Extremely low input bias current (0.2pA typ) allows for minimal error when interfacing with high impedance sensors (e.g., photodiodes, pH electrodes).
Enhanced EMI immunity: The internal design effectively suppresses RF interference and reduces the impact of external noise (e.g., from mobile phones, WiFi) on the output of the op-amps, improving system reliability in complex electromagnetic environments.
Industrial-grade reliability and automotive certification: Wide operating temperature range (-40°C to +125°C) and AEC-Q100 Grade 1 compliance ensure stable operation in harsh environments such as industrial automation and automotive electronics.
Unit gain stability: Stable operation in unit gain configuration without external compensation simplifies circuit design.
Typical Application Areas
With its multi-channel, low power consumption, wide voltage range and RRIO characteristics, the TLV9104IDR is widely used in applications that require space and power saving:
Multi-channel Sensor Signal Conditioning: Temperature Sensors (RTD, Thermocouples), Pressure Sensors, Optoelectronic Sensors, Current Detection, Preamplification and Buffering for Strain Gauge Bridge Amplifiers.
Portable and Battery Powered Devices: Medical handheld devices (monitors, glucose meters), portable meters, smart sensor nodes, wireless IoT devices, consumer electronics (auxiliary circuits in headphones, portable speakers).
Industrial Automation and Control: I/O interfaces to PLC modules, process control instrumentation, motor control loops, analogue front-ends in data acquisition systems (DAQ).
Power Management: Voltage monitoring, reference buffers, error amplifiers in power control loops.
Active Filters: Low-pass, high-pass, band-pass filters (especially when multiple op-amps are required for multi-order filters).
Audio signal processing: microphone preamplifiers, headphone drivers (auxiliary channels), simple mixing or equalisation circuits.
Automotive electronics: Signal conditioning (AEC-Q100 compliant) in body control modules, sensor interfaces, infotainment systems (auxiliary audio processing), battery management systems (BMS).
The TI TLV9104IDR is a quad-channel operational amplifier that delivers an excellent balance of space, power and performance. Its wide 16V supply, 1.1MHz bandwidth, rail-to-rail input/output capability, and ultra-low quiescent current of only 75µA per channel make it an ideal solution for signal conditioning and amplification in multi-channel sensor interfaces, portable devices, industrial control systems, and automotive electronics applications.
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