Overview
The SMP08FS, produced by Analog Devices Inc., is a monolithic octal sample-and-hold integrated circuit. It features eight internal buffer amplifiers, an input multiplexer, and internal hold capacitors. This device is designed for systems that require calibration cycles to adjust multiple system parameters and is manufactured using advanced oxide isolated CMOS technology to achieve high accuracy, low droop rate, and fast acquisition time.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|---|
| Linearity Error | - | -3 V ≤ VIN ≤ +3 V | - | 0.01 % | - | - |
| Buffer Offset Voltage | VOS | TA = +25°C, VIN = 0 V | 2.5 | 10 | mV | |
| Buffer Offset Voltage | VOS | -40°C ≤ TA ≤ +85°C, VIN = 0 V | 3.5 | 20 | mV | |
| Hold Step | VHS | VIN = 0 V, TA = +25°C to +85°C | 2.5 | 4 | mV | |
| Droop Rate | ∆VCH/∆t | TA = +25°C, VIN = 0 V | 2 | 20 | mV/s | |
| Output Source Current | ISOURCE | VIN = 0 V | - | 1.2 | mA | |
| Output Sink Current | ISINK | VIN = 0 V | - | 0.5 | mA | |
| Output Voltage Range | - | RL = 20 kΩ | -3.0 | - | +3.0 | V |
| Logic Input High Voltage | VINH | - | - | 2.4 | V | |
| Logic Input Low Voltage | VINL | - | - | 0.8 | V | |
| Logic Input Current | IIN | VIN = 2.4 V | - | 0.5 | µA |
Key Features
- Internal hold capacitors and eight internal buffer amplifiers.
- Low droop rate and fast acquisition time, capable of accurately acquiring a 10-bit input signal to ± 1/2 LSB in less than 7 microseconds.
- TTL/CMOS compatible logic inputs and single or dual supply operation.
- Break-before-make channel addressing and compatibility with CD4051 pinout.
- Available in 16-pin plastic DIP or surface-mount SOIC package.
- Internally regulated TTL supply for maintaining TTL/CMOS compatibility over the full supply range.
Applications
- Multiple path timing deskew for Automated Test Equipment (ATE) and memory programmers.
- Mass flow/process control systems.
- Multichannel data acquisition systems.
- Robotics and control systems.
- Medical and analytical instrumentation.
- Event analysis and stage lighting control).
- Amplifier offset or VCA gain adjustments).
- Integration with low-cost 16-bit D/A converters in microprocessor-based systems).
Q & A
- What is the primary function of the SMP08FS?
The SMP08FS is a monolithic octal sample-and-hold integrated circuit with an input multiplexer and internal hold capacitors.
- What are the key features of the SMP08FS?
Key features include internal hold capacitors, low droop rate, fast acquisition time, TTL/CMOS compatible logic inputs, and single or dual supply operation.
- What are the typical applications of the SMP08FS?
Applications include multiple path timing deskew, mass flow/process control, multichannel data acquisition, robotics, medical and analytical instrumentation, and event analysis).
- What is the acquisition time of the SMP08FS?
The SMP08FS can accurately acquire a 10-bit input signal to ± 1/2 LSB in less than 7 microseconds).
- What are the supply voltage options for the SMP08FS?
The SMP08FS can operate with either single or dual supplies over a voltage range of 7 volts to 15 volts).
- What is the droop rate of the SMP08FS?
The droop rate is typically 2 to 20 mV/s at TA = +25°C).
- How many channels does the SMP08FS support?
The SMP08FS supports eight channels).
- What is the logic input current of the SMP08FS?
The logic input current is typically 0.5 µA at VIN = 2.4 V).
- What are the package options for the SMP08FS?
The SMP08FS is available in 16-pin plastic DIP or surface-mount SOIC package).
- Is the SMP08FS compatible with CD4051 pinout?
Yes, the SMP08FS is compatible with CD4051 pinout).
