Overview
The LM211DG is a single high-speed voltage comparator produced by onsemi. This device is part of the LM211/LM311 family, known for its versatility and wide range of operating conditions. It can operate from a single power supply of 5.0 V to 30 V or from split supplies up to ±15 V, making it compatible with various system configurations. The LM211DG is designed to drive loads referenced to ground, VCC+, or VCC-, and it can handle output voltages up to 50 V at currents up to 50 mA, making it suitable for driving relays, lamps, or solenoids.
Key Specifications
| Parameter | Symbol | Unit | Min | Typ | Max |
|---|---|---|---|---|---|
| Total Supply Voltage | VCC + |VEE| | Vdc | - | - | 36 |
| Output to Negative Supply Voltage | VO - VEE | Vdc | - | - | 50 |
| Input Offset Voltage | VIO | mV | -0.7 | 3.0 | 4.0 |
| Input Offset Current | IIO | nA | -1.7 | 10 | 20 |
| Input Bias Current | IIB | nA | -45 | 100 | 150 |
| Voltage Gain | AV | V/mV | 40 | 200 | - |
| Response Time | - | ns | - | 200 | - |
| Saturation Voltage | VOL | V | - | 0.75 | 1.5 |
| Strobe 'On' Current | IS | mA | - | 3.0 | - |
| Output Leakage Current | - | nA | - | 0.2 | 10 |
| Input Voltage Range | VICR | V | -14.7 | - | 13.8 |
| Positive Supply Current | ICC | mA | - | 2.4 | 6.0 |
| Negative Supply Current | IEE | mA | - | -1.3 | -5.0 |
Key Features
- Operates from a single 5-V supply to ±15 V split supplies, making it versatile for various applications.
- Fast response time of approximately 200 ns.
- Strobe capability allows for output control regardless of the differential input.
- Maximum input bias current of 300 nA and maximum input offset current of 70 nA.
- Output levels compatible with TTL and MOS circuits.
- Can drive loads referenced to ground, VCC+, or VCC-.
- Pb-free and RoHS compliant.
- Available in various packages including SOIC-8 and PDIP-8.
Applications
- Desktop PCs and other computer systems.
- Body Control Modules in automotive systems.
- White Goods and home appliances.
- Building Automation systems.
- Oscillators and peak detectors.
- Relay and solenoid control.
- Logic circuits and signal processing.
Q & A
- What is the operating voltage range of the LM211DG?
The LM211DG can operate from a single 5-V supply to ±15 V split supplies.
- What is the maximum output voltage and current of the LM211DG?
The LM211DG can switch voltages up to 50 V at currents up to 50 mA.
- What is the response time of the LM211DG?
The response time is approximately 200 ns.
- Does the LM211DG have strobe capability?
Yes, the LM211DG has strobe capability, allowing the output to be controlled regardless of the differential input.
- What are the typical applications of the LM211DG?
Typical applications include desktop PCs, body control modules, white goods, building automation, oscillators, and peak detectors.
- Is the LM211DG Pb-free and RoHS compliant?
Yes, the LM211DG is Pb-free and RoHS compliant.
- What are the available packages for the LM211DG?
The LM211DG is available in SOIC-8 and PDIP-8 packages.
- How should the LM211DG be laid out on a PCB to avoid oscillations?
To avoid oscillations, the PCB layout should include bypass capacitors close to the device, ground planes under the circuitry, and short, compact connections to minimize capacitive coupling.
- Can the LM211DG drive TTL and MOS logic circuits?
Yes, the output levels of the LM211DG are compatible with TTL and MOS logic circuits.
- What is the input voltage range of the LM211DG?
The input voltage range is from -14.7 V to +13.8 V.
