Analogic AN3100

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

• 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.