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Product Detailed Parameters
- Description：IC SWITCH SPST-NCX4 45OHM 16QSOP
- Series：-
- Mfr：Diodes Incorporated
- Package：Tube
- Switch Circuit：SPST - NC
- Multiplexer/Demultiplexer Circuit：1:01
- On-State Resistance (Max)：45Ohm
- Channel-to-Channel Matching (ΔRon)：500mOhm
- Voltage - Supply, Single (V+)：3V ~ 15V
- Voltage - Supply, Dual (V±)：±3V ~ 8V
- Switch Time (Ton, Toff) (Max)：130ns, 75ns
- -3db Bandwidth：100MHz
- Charge Injection：3pC
- Channel Capacitance (CS(off), CD(off))：12pF, 12pF
- Current - Leakage (IS(off)) (Max)：100pA
- Crosstalk：-90dB @ 1MHz
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：16-SSOP (0.154", 3.90mm Width)
- Supplier Device Package：16-QSOP
- Number of Circuits：4
- Grade：-
- Qualification：-
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Overview
The PS391EEE is a precision voltage reference manufactured by Diodes Incorporated. It provides a fixed output voltage of 2.5V with an initial accuracy of ±0.1%. The device operates within a supply voltage range of 2.7V to 36V and delivers a maximum load current of 15mA. It features low temperature drift, specified at 15ppm/°C over the industrial temperature range of -40°C to +85°C. The component utilizes a compact SOT-23 surface-mount package, ensuring suitability for space-constrained designs requiring stable reference voltages.
Feature Summary
- Provides high-precision fixed output voltage with tight initial tolerance
- Operates across a wide input voltage range up to 36V
- Features low temperature coefficient for stable performance across varying thermal conditions
Applications
- Precision analog-to-digital converter (ADC) reference sources
- Digital-to-analog converter (DAC) voltage references
- Battery-powered instrumentation requiring stable biasing
Procurement Notes
Verify the specific suffix 'EEE' against the manufacturer's official datasheet to confirm pinout configuration and tolerance grade. Ensure the selected variant matches the required operating temperature range and package type for your specific PCB layout constraints before finalizing procurement.
Selection Notes
Select this component when a stable 2.5V reference is required with minimal temperature drift. Consider the 15mA output current capability and the wide input voltage range when designing power supply circuits. Verify that the SOT-23 package dimensions fit the available board space compared to larger packages offering higher current capabilities.
Part Context
The PS391EEE belongs to the PS39x series of micropower voltage references from Diodes Incorporated. This family is designed to offer high accuracy and stability in small surface-mount packages. The PS391 specifically provides a 2.5V output, distinguishing it from other variants in the series that may offer different fixed voltage levels or slightly different performance characteristics.
Replacement Considerations
Consult official substitution guides for equivalent 2.5V precision voltage references. Verify compatibility regarding output current, temperature drift, and package footprint before replacing the PS391EEE with alternative part numbers from other manufacturers.
