AD582SH/883B - Military Sample-and-Hold Amplifier | Analog Devices
Référence : AD582SH/883B ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $45 | $45,00 |
| 10 | $42 | $420,00 |
| 100 | $38 | $3 800,00 |
| 500 | $35 | $17 500,00 |
| 1 000 | $32 | $32 000,00 |
AD582SH/883B Présentation
A sample-and-hold amplifier (SHA) is an analog circuit that captures the voltage of an input signal at a specific instant and holds it constant for a defined period, enabling accurate conversion by an analog-to-digital converter (ADC). It is a critical building block in data acquisition systems, where it bridges the gap between fast-changing analog signals and the finite conversion time of ADCs. The AD582SH/883B belongs to the family of sample-and-hold circuits, which are essential in applications such as automatic test equipment, medical instrumentation, and military avionics.
Key features of the AD582SH/883B include its MIL-STD-883 compliance, ensuring reliability under extreme conditions, and its separate analog and digital grounds, which minimize noise coupling. The device offers a maximum acquisition time of 6 µs, allowing it to track fast signals, and a maximum supply current of 4.5 mA, making it power-efficient for its class. The TO-100 metal can package provides robust hermetic sealing, protecting the internal circuitry from moisture and contaminants.
Technically, the AD582SH/883B uses bipolar technology, which offers high-speed performance and low offset voltage. The internal JFET integrating amplifier provides high input impedance, reducing loading on the signal source. The low-leakage analog switch ensures minimal droop rate, maintaining the held voltage accurately over time. The device's architecture is optimized for precision, with careful attention to charge injection and aperture error, which are critical for high-resolution sampling.
Typical applications include military radar systems, aerospace telemetry, and industrial process control, where the device's ruggedness and precision are paramount. In these systems, the AD582SH/883B is used to sample analog sensor signals and hold them for digitization, ensuring accurate measurement even in noisy environments.
When designing with the AD582SH/883B, it is essential to select an appropriate external holding capacitor to balance acquisition time and droop rate. A larger capacitor reduces droop but increases acquisition time, while a smaller capacitor improves speed but may compromise hold stability. Additionally, proper grounding and decoupling are critical to maintain the device's noise immunity.
Alternatives de remplacement direct pour AD582SH/883B — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
AD582SH
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
AD582SD/883B
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
AD582KD
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
AD582SH/883B Valeurs maximales et caractéristiques électriques
| Fonction | Sample and Hold Amplifier |
| Number of Channels | 1 |
| Acquisition Time | 6 µs (max) |
| Supply Voltage (Nominal) | ±15 V |
| Supply Current (Max) | 4.5 mA |
| Plage de température de fonctionnement | -55°C to +125°C |
| Boîtier | TO-100 (10-pin metal can) |
| Terminal Form | Wire |
| Number of Terminals | 10 |
| Package Code | TO-100 |
| Package Shape | Round |
| Technology | Bipolar |
| Temperature Grade | Military |
| MIL-STD-883 Compliance | Compliant |
| Separate Analog and Digital Grounds | Yes |
Configuration des broches de AD582SH/883B
| Broche 1 | V+ — Positive supply voltage |
| Broche 2 | V- — Negative supply voltage |
| Broche 3 | AGND — Analog ground |
| Broche 4 | DGND — Digital ground |
| Broche 5 | IN — Analog input |
| Broche 6 | OUT — Sample and hold output |
| Broche 7 | CH — Holding capacitor connection |
| Broche 8 | CONTROL — Sample/hold control input |
| Broche 9 | NC — No connection |
| Broche 10 | NC — No connection |
Applications typiques
AD582SH/883B convient pour 6 applications: Military Radar Systems, Aerospace Telemetry, Industrial Process Control, Medical Instrumentation, Automatic Test Equipment (ATE), Data Acquisition Systems.
Military Radar Systems
The AD582SH/883B is ideal for military radar systems due to its MIL-STD-883 compliance and wide temperature range. It samples analog return signals with a 6 µs acquisition time, ensuring accurate target detection. The separate analog and digital grounds minimize noise, critical for weak signal processing. Its rugged TO-100 package withstands harsh environments, making it a reliable choice for defense applications.
Recommandé
Aerospace Telemetry
In aerospace telemetry, the AD582SH/883B captures sensor data from various flight parameters. Its military temperature range ensures operation in extreme altitudes and temperatures. The low supply current of 4.5 mA is beneficial for power-constrained satellite systems. The device's high accuracy and low droop rate maintain signal integrity during long hold times, essential for reliable data transmission.
Recommandé
Industrial Process Control
The AD582SH/883B is used in industrial process control to sample analog signals from sensors like temperature and pressure transducers. Its 6 µs acquisition time allows real-time monitoring of fast-changing processes. The device's robust construction and MIL-STD-883 compliance ensure long-term reliability in factory environments. Separate grounds reduce electrical noise, improving measurement accuracy in noisy industrial settings.
Recommandé
Medical Instrumentation
In medical instrumentation, the AD582SH/883B is employed in diagnostic equipment such as ECG and EEG machines. Its high accuracy and low noise are crucial for capturing biopotential signals. The device's wide temperature range is suitable for sterilization processes. The TO-100 package provides hermetic sealing, protecting against moisture and contaminants, ensuring patient safety and device longevity.
Recommandé
Automatic Test Equipment (ATE)
The AD582SH/883B is a key component in automatic test equipment, where it samples signals from devices under test. Its fast acquisition time of 6 µs enables high-throughput testing. The device's military-grade reliability ensures consistent performance in production environments. Separate analog and digital grounds reduce interference, improving test accuracy. The TO-100 package allows easy integration into test fixtures.
Recommandé
Data Acquisition Systems
The AD582SH/883B is fundamental in data acquisition systems, sampling analog signals for conversion by ADCs. Its 6 µs acquisition time allows capturing high-frequency signals. The device's low power consumption is advantageous for portable systems. The military temperature range and MIL-STD-883 compliance make it suitable for ruggedized data loggers. The TO-100 package ensures durability in field applications.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour AD582SH/883B — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | AD582SH | AD582SD/883B | AD582KD |
|---|---|---|---|---|
| Package | TO-100 | TO-100 | TO-100 | TO-100 |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Acquisition Time | 6 µs | 6 µs | 6 µs | 6 µs |
| Supply Voltage | ±15 V | ±15 V | ±15 V | ±15 V |
| Supply Current | 4.5 mA | 4.5 mA | 4.5 mA | 4.5 mA |
| Temperature Range | -55°C to +125°C | -55°C to +125°C | -55°C to +125°C | 0°C to +70°C |
| MIL-STD-883 | Compliant | No | Compliant | No |
| Technology | Bipolar | Bipolar | Bipolar | Bipolar |
Principaux différenciateurs
- MIL-STD-883 compliance (vs AD582SH)
- Military temperature range (vs AD582KD)
- Separate analog and digital grounds (vs LF398H)
Notes de conception
For optimal performance, place the holding capacitor as close to the CH pin as possible to minimize parasitic capacitance and inductance. Use a high-quality, low-leakage capacitor such as a polypropylene or polystyrene type. Keep analog and digital grounds separate and connect them at a single point to avoid ground loops, as the AD582SH/883B provides separate grounds for this purpose.
Decouple the ±15V supply pins with 0.1 µF ceramic capacitors placed close to the device, and add 10 µF tantalum capacitors for bulk decoupling. This ensures stable operation and reduces noise coupling from the power supply. The maximum supply current is 4.5 mA, so power dissipation is minimal, but proper decoupling is still essential for high accuracy.
Avoid using excessively large holding capacitors, as they increase acquisition time and may cause instability. Conversely, too small a capacitor leads to high droop rate, degrading hold accuracy. Refer to the datasheet for recommended capacitor values. Also, ensure the control signal is clean and fast to minimize aperture error.
Informations de conformité
MIL-STD-883 compliant per Analog Devices product page. RoHS/REACH status not specified in provided data.
