The Krohn-Hite Model 1200A is an economically priced analog function and sweep generator. It provides sine, square, and triangle waveforms from 0.2 Hz to 3 MHz, with linear up or down frequency sweep capability over a 1500:1 range on each multiplier band. The instrument features a unique WAVEGUARD™ output protection circuit, a dedicated +5V ramp output, and a separate TTL output with rise/fall times under 15 ns.
Specifications
Physical
| Parameter | Value |
|---|---|
| Power Supply | 105-125 V / 210-250 V AC (switchable), 50-400 Hz, 15 W |
| Operating Temperature | 0 °C to 50 °C |
| Dimensions (W×H×D) | 216 mm × 133 mm × 279 mm |
| Weight | 3.2 kg |
Waveform Generation
| Parameter | Value |
|---|---|
| Standard Waveforms | Sine, Square, Triangle |
Frequency Specifications
| Parameter | Value |
|---|---|
| Frequency Range | 0.2 Hz to 3 MHz |
| Frequency Bands | 3 multiplier bands with 1500:1 range each |
Pulse & Square Wave Characteristics
| Parameter | Value |
|---|---|
| Auxiliary TTL Output Rise/Fall Time | <15 ns |
| Auxiliary TTL Output Drive | Capable of driving up to 10 TTL loads |
Amplitude and Output Characteristics
| Parameter | Value |
|---|---|
| Main Output Amplitude Range (Open Circuit) | 5 mV p-p to 20 V p-p |
| Amplitude Control | Continuous, infinite resolution |
| DC Offset Range | Variable up to ±10 V |
Modulation, Sweep, and Burst
| Parameter | Value |
|---|---|
| Linear Sweep Range | 1500:1 (up or down) |
| Internal Sweep Rate / Duration | 1 ms to 1000 s |
| External Voltage Control (VC) Input | 0 to ±3 V for 1500:1 frequency sweep |
Clock, Trigger, and Synchronization
| Parameter | Value |
|---|---|
| Control Voltage (CV) Output Range | +2 mV to +3 V DC (proportional to generator frequency) |
| Internal Ramp Generator Output | +5 V fixed linear ramp |
| Ramp Generator Frequency Range | 0.001 Hz to 1 kHz |
Outputs
| Parameter | Value |
|---|---|
| Main Output Impedance | 50 Ω |
Waveform Characteristics
| Parameter | Value |
|---|---|
| Square Wave Rise/Fall Time | <50 ns |
| Triangle Wave Linearity | ≥99% (up to 100 kHz) |
Sweep Characteristics
| Parameter | Value |
|---|---|
| Sweep Dynamic Range | 1500:1 |
Physical & Environmental
| Parameter | Value |
|---|---|
| Shipping Weight | 4.1 kg |
Technology
Analog
Applications
Test and Measurement
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