Overview
The SMP18FS-REEL, produced by Analog Devices Inc., is a monolithic octal sample-and-hold amplifier. It features eight internal buffer amplifiers, an input multiplexer, and internal hold capacitors. Manufactured using advanced oxide isolated CMOS technology, this device is designed to achieve high accuracy, a low droop rate, and fast acquisition time. The SMP18FS-REEL is particularly suited for systems requiring cycled calibration or an array of control voltages, making it ideal for various industrial and analytical applications.
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 | 20 | mV |
| Hold Step | VHS | VIN = 0 V, TA = +25°C to +85°C | 4 | 6 | - | mV |
| Inhibit Recovery Time | tIR | - | - | 90 | - | ns |
| Slew Rate | SR | Sample mode, 0 to 10 V step | - | 6 | - | V/µs |
| Power Supply Rejection Ratio | PSRR | VSS = ±5 V to ±6 V | 60 | 75 | - | dB |
| Supply Current | IDD | TA = +25°C | 5.5 | 7.5 | 9.5 | mA |
Key Features
- High speed version with fast acquisition time (less than 2.5 microseconds for a 10-bit input signal to ±1/2 LSB).
- Low droop rate and high accuracy (typical linearity error of 0.01%).
- TTL/CMOS compatible logic inputs and internally regulated TTL supply.
- Single or dual supply operation with a voltage range of 7 to 15 volts.
- Break-before-make channel addressing and compatibility with CD4051 pinout.
- Available in 16-pin plastic DIP, narrow body SO-16 surface-mount SOIC package, or TSSOP-16 package.
Applications
- Multiple path timing deskew for Automated Test Equipment (A.T.E.) 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.
Q & A
- What is the SMP18FS-REEL used for? The SMP18FS-REEL is used as a sample-and-hold amplifier in various applications requiring high accuracy and fast acquisition times, such as in A.T.E., data acquisition systems, and medical instrumentation.
- What are the key features of the SMP18FS-REEL? Key features include high speed, low droop rate, high accuracy, TTL/CMOS compatibility, and single or dual supply operation.
- What are the typical linearity error and slew rate of the SMP18FS-REEL? The typical linearity error is 0.01%, and the slew rate is 6 V/µs.
- What are the supply voltage ranges for the SMP18FS-REEL? The SMP18FS-REEL can operate with single or dual supplies over a voltage range of 7 to 15 volts.
- What packages is the SMP18FS-REEL available in? It is available in 16-pin plastic DIP, narrow body SO-16 surface-mount SOIC package, or TSSOP-16 package.
- What is the inhibit recovery time of the SMP18FS-REEL? The inhibit recovery time is 90 ns.
- How does the SMP18FS-REEL handle digital switching noise? The device recommends separating analog and digital ground traces on the circuit board to reduce digital switching noise.
- What is the power supply rejection ratio of the SMP18FS-REEL? The power supply rejection ratio is 60 to 75 dB.
- What is the typical supply current of the SMP18FS-REEL? The typical supply current is 7.5 mA at TA = +25°C.
- Can the SMP18FS-REEL be used with multiple DACs? Yes, one or more SMP18FS-REEL can be used with single or multiple DACs to provide multiple set points within a system).
