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Product Detailed Parameters
- Description：IC COMPARATOR 2 GEN PUR 8SOIC
- Series：-
- Mfr：Texas Instruments
- Package：Tube
- Type：General Purpose
- Number of Elements：2
- Output Type：Open-Drain
- Voltage - Supply, Single/Dual (±)：2.7V ~ 15V, ±1.35V ~ 7.5V
- Voltage - Input Offset (Max)：15mV @ 5V
- Current - Input Bias (Max)：0.04pA @ 5V
- Current - Output (Typ)：30mA
- Current - Quiescent (Max)：20µA
- CMRR, PSRR (Typ)：75dB CMRR, 80dB PSRR
- Propagation Delay (Max)：10µs
- Hysteresis：-
- Operating Temperature：-40°C ~ 85°C
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Mounting Type：Surface Mount
- Supplier Device Package：8-SOIC
- Grade：-
- Qualification：-
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Overview
The LMC6772BIM/NOPB is a dual low-power analog comparator manufactured by Texas Instruments. It operates within a supply voltage range of 2.7 V to 15 V and consumes a typical operating supply current of 20 µA. The device features rail-to-rail input capability and an open-drain output type. Key electrical parameters include a maximum input offset voltage (Vos) of 18 mV, an input bias current (Ib) of 0.04 pA, and an input offset current (Ios) of 20 fA. Common-mode rejection ratio (CMRR) is typically 75 dB, while power-supply rejection ratio (PSRR) is typically 80 dB. It functions reliably across a temperature range from -40°C to +85°C.
Feature Summary
- Dual-channel general-purpose analog comparator with ultra-low quiescent current consumption
- Rail-to-rail input stage allowing full common-mode voltage swing
- Open-drain output configuration for flexible interfacing
- High input impedance with femtoampere-level bias currents
Applications
- Battery-powered portable electronics requiring minimal standby current
- Threshold detection circuits in low-voltage systems
- Temperature sensing interfaces using thermistors or RTDs
- Window comparator applications for voltage monitoring
Procurement Notes
Verify the specific suffix 'BIM' against the manufacturer's datasheet to confirm the exact grade and package variant. Ensure the ordering part number matches the required tolerance and thermal specifications. Confirm RoHS compliance status through official documentation before procurement. Cross-reference the distributor's listing with the original manufacturer's product page to validate authenticity and revision history.
Selection Notes
Select this component when low power consumption is critical alongside rail-to-rail input requirements. The open-drain output necessitates an external pull-up resistor for proper logic level translation. Consider the 18 mV maximum input offset voltage for precision applications; higher accuracy grades may require alternative models. Verify that the 20 µA supply current meets system battery life constraints compared to standard comparators.
Part Context
This device belongs to the LMC6772 family of low-power comparators from Texas Instruments. It shares architectural similarities with other members like the LMC6772AIMX/NOPB but differs in specified performance grades such as input offset voltage limits. The SOIC-8 package provides a compact surface-mount solution suitable for space-constrained designs. It serves as a cost-effective alternative to bipolar comparators in battery-operated devices.
Replacement Considerations
LMC6772AIMX/NOPB offers tighter input offset voltage specifications. LMV331 provides single-channel functionality with similar low-power characteristics. SM72375MME/NOPB is a discontinued micro-power alternative with comparable input types.
