SMP04ES

Special Purpose Amplifiers Overview

The SMP04ES is a quad monolithic CMOS sample-and-hold amplifier manufactured by Analog Devices Inc. It integrates four independent track-and-hold circuits with internal hold capacitors, eliminating external component requirements. The device operates on single or dual supplies ranging from 7 to 15 volts total. Key electrical specifications include a linearity error of 0.01%, an acquisition time of 3.5 microseconds at +25°C for a 0.1% settling target, and a typical droop rate of 2 mV/s. It features a 16-lead SOIC package and supports an operating temperature range of -40°C to +85°C.

Special Purpose Amplifiers Feature Summary

• Integrates four high-performance track-and-hold channels with internal hold capacitors to reduce board space and design complexity.
• Features internally regulated TTL supply logic to maintain compatibility across the full supply voltage range.
• Provides stable buffer outputs capable of driving capacitive loads up to 500 pF without oscillation.
• Supports both single-supply and split-supply operation within a wide voltage window.

Special Purpose Amplifiers Applications

• Demultiplexing single DAC converter outputs into multiple analog signals
• Positive and negative peak detection circuits with hold control
• Time-delta sampling and difference measurement systems
• D/A converter deglitcher applications

Special Purpose Amplifiers Procurement Notes

Verify the specific suffix ES corresponds to the 16-lead Small Outline (SO) package variant. Confirm that the RoHS status aligns with current project compliance requirements, as indicated in distributor listings. Ensure the ordering code matches the exact temperature grade and pin configuration required for the PCB footprint.

Special Purpose Amplifiers Selection Notes

Select this component when a compact solution requiring four isolated sample-and-hold functions is necessary. The internal capacitor simplifies layout by removing leakage and guard ring concerns associated with discrete designs. Verify that the 3.5 microsecond acquisition time meets the system's signal bandwidth requirements.

Special Purpose Amplifiers Part Context

This part belongs to the SMP04 family of quad sample-and-hold amplifiers. Other variants in the series include the SMP04EQ in a Cerdip-16 package and the SMP04EP in a Plastic DIP-16 package. All variants share identical electrical characteristics but differ in physical packaging and mounting style.

Special Purpose Amplifiers Replacement Considerations

Direct replacements within the same manufacturer family include SMP04EQ and SMP04EP. These parts offer identical electrical performance but utilize different packages (Cerdip and PDIP respectively). Cross-manufacturer substitution requires careful verification of pinouts and dynamic parameters.

Special Purpose Amplifiers FAQ

How does the SMP04 handle ground noise in single-supply applications?

In single-supply mode, the VSS pin must be connected to a clean ground because the internal hold capacitor is tied to it. Noise on this pin couples directly to the output, so separating analog and digital ground traces is recommended.

What is the maximum capacitive load the SMP04 can drive stably?

The on-chip buffers are designed to remain stable with capacitive loads up to 500 pF, preventing potential stability issues often found with external buffer configurations.