Small Instrumentation Modules SIM964 — 1 MHz analog limiter · Settable upper & lower limits (±10 V) · 10 mV resolution · 1 MHz bandwidth · TTL outputs for limit detecting · High slew rate SIM964 Analog Limiter The SIM964 Analog Limiter provides upper and lower voltage limits for conditioning dynamic signals. Limits are set between ±10 V with 10 mV resolution. Two rear-panel TTL signals are activated when upper or lower limits are exceeded. The SIM964 uses SRS’s clock-stopping architecture design to eliminate digital noise artifacts. The low output noise and low harmonic distortion of the SIM964 make it ideal for many applications. Specifications Limit settings ±10 V (both upper and lower) Resolution 10 mV Bandwidth 1 MHz Limit type Soft limit (100 mV range) Input impedance 1 MΩ Output noise <400 µVrms THD 0.01 % (80 dB) at 1 kHz Slew rate 20 V/µs Stanford Research Systems Limit detect TTL level signals (rear-panel BNC connectors) are high when upper or lower limits are exceeded. Operating temperature 0 °C to 40 °C, non-condensing Interface Serial via SIM interface Connectors BNC (2 front, 2 rear) DB15 (male) SIM interface Power Powered by SIM900 Mainframe, or by user-provided DC power supply (±15 V and +5 V) Dimensions 1.5" × 3.6" × 7.0" (WHD) Weight 1.5 lbs. Warranty One year parts and labor on defects in materials and workmanship Programmable analog limiter