The Analogic AN3100 is a precision DC voltage standard for high-accuracy calibration and metrology applications. It generates stable, low-noise voltage outputs across dual ranges with exceptional linearity and long-term stability. The instrument delivers main output voltages to ±11.1110 V DC with 100 μV resolution and auxiliary outputs to ±111.110 mV DC with 1 μV resolution, supporting source currents to 50 mA and sink currents to 3 mA. Absolute accuracy reaches ±50 PPM of reading ±50 μV on the main output, with temperature stability of ±2 PPM/°C and 60-day drift limited to ±15 PPM.
Technical Specifications
Output Ranges & Resolution
• Main output: 0 to ±11.1110 V DC (100 μV resolution via five dialable decades and ±1 mV vernier)
• Auxiliary output: 0 to ±111.110 mV DC (1 μV resolution)
• MV output: Three-pin rear socket provides 1/100 of front panel voltage
Accuracy & Stability
• Main output absolute accuracy: ±50 PPM of reading, ±50 μV (includes 6-month stability and linearity)
• Auxiliary output absolute accuracy: ±150 PPM of reading, ±0.5 μV (includes 6-month stability and linearity)
• Long-term stability: ±15 PPM over 60 days
• Linearity: ±25 PPM
• Temperature coefficient: ±2 PPM/°C
Output Characteristics
• Main output impedance (DC): 10 mΩ maximum; (dynamic) L ≤ 10 μH, R ≤ 20 Ω
• Auxiliary output impedance: 100 Ω
• Noise (main output): (0.001% of reading + 50 μV) peak-to-peak
• Settling time: ≤300 ms
• Output isolation: Floatable to ±500 V DC above or below chassis ground
Current Capability (Main Output)
• Source: 0 to 50 mA, short-circuit proof
• Sink: 0 to 3 mA
• Load capacitance: unrestricted
Thermal & Operational
• Warmup: <10 minutes to rated accuracy; ±0.02% accuracy without warmup delay
• Operating temperature: 0° to +60°C
• Storage temperature: -25° to +85°C
• Humidity: 0–85% RH non-condensing
Power & Physical
• Power: 117/234 VAC, 47–420 Hz, 10 W maximum (RF filter included)
• Dimensions: 3.5" H × 8.5" W × 12" D (89 mm H × 216 mm W × 305 mm D)
• Construction: Bench aluminum-alloy case with carrying handle; 19" rack adapter available
• Recalibration interval: 6 months
– Key Features
• Five front-panel decade knobs for manual voltage selection
• Dual output ranges accessible from front binding posts and rear terminals
• Low output impedance and unrestricted capacitive loading
• Noise floor independent of output voltage magnitude
• Fast settling enables rapid test sequencing
– Typical Applications
• Precision calibration of digital multimeters and voltage standards
• DC reference verification in metrology laboratories
• Component testing requiring known reference voltages
• Long-term stability monitoring of measurement instruments
– Compatibility & Integration
The AN3100 integrates into calibration workflows via standard front binding posts and rear panel connectors. Dual voltage outputs support simultaneous multi-channel reference applications. Floating output capability enables testing of isolated or differential circuits.
