IA296 ULTRA LOW NOISE TRUE INSTRUMENTATION MEDICAL ISOLATION AMPLIFER FEATURES • UL Component Recognized • Ultra Low Noise • Failure of Any Internal Component Results in <10µA Bias CHARACTERISTICS Current • (Typical, @ 25°C, Vs = +15 VDC unless otherwise noted.) Excellent CMRR: 170 dB; 160 dB with 5KΩ Source Imbalance • External Sync Capability The Model IA296 Isolation Amplifier features very high input / output isolation and very low noise. It can operate at common mode input voltages up to 5000 VDC continuous; CMRR is 170 dB with balanced source impedance, and 160 dB with 5KΩ source imbalance. Input voltage noise is held to 0.3µV, 10Hz – 1kHz rms. and current noise to 4pA, 0.5Hz – 1kHz rms. Input bias current is only 200pA, and on the failure of any component is limited to 10µA. An independent ±12VDC, 10mA supply in the input section with the same voltage BLOCK DIAGRAM IA296 + + - Demodulator Full Wave Modulator Filter Active Protection Circuitry LO OUT IN REF Modulator Driver + Current Limiter Demodulator Driver + Guard Drive INPUT VOLTAGE Max. Safe Differential Input Pulse, 10ms Duration Max. Safe Common Mode Input (DC cont.) ±0.5V min. ±30V rms. ±500V peak ±5000VDC INPUT BIAS CURRENT Vs. Temperature (0 to + 70°C) ±200pA ±5pA/°C SAFETY CURRENT LIMITS 10µA max. INPUT NOISE (5K Unbalance) Voltage .05Hz to 100Hz, pp Voltage 10Hz to 1kHz, rms. Current .05Hz to 1kHz, rms. 1.5µV 0.3µV 4pA 170 dB 160 dB 120 dB OUTPUT Range (50KΩ Load) Output Impedance Max. CMV, Outputs to Power Common Offset Voltage Referred to Input Vs. Temperature (0° to 70°C) Vs. Supply Voltage ±5V 1 KΩ ± 30 V peak ± 5mV ± 100µV / °C ± 20µV / % FREQUENCY RESPONSE Small Signal, - 3 dB Full Power, 6V pp Overload Recovery 1kHz 500Hz 20mS ISOLATED POWER OUTPUTS Voltage, ±10mA Load Accuracy Current ±12VDC ±10% ± 10mA NOMINAL WEIGHT 8 Ounces POWER SUPPLY, SINGLRE POLARITY Voltage, Rated Performance Current, Quiescent ±14.5 to +16 VDC + 40 mA TEMPERATURE RANGE Rated Performance Storage 0°C to +70°C -25°C to +85°C MATING SOCKET S132 HI OUT - -IN 10V / V ±2% ±. 015%/°C ±0.1% 3 X 108Ω || 2.2nF 3 X 1010Ω || 10pF COMMON MODE REJECTION Input to Output, CMV = 115 VAC, 60Hz Balanced Source Impedance 5KΩ Source Imbalance Input to Reference CMV = 10V p-p, 60Hz 5KΩ Source Imbalance isolation as the amplifier, is used to power optional external circuitry. +IN GAIN (Non-inverting) ACCURACY Vs. Temperature Nonlinearity Differential Input Impedance Common Mode Input Impedance +Vs DC-DC Converter +Vs COMMON -Vs Oscillator COMMON Shield Guard SYNC SEE NOTE 2.53 (64.2) MAX. HI OUT 11 6 5 +IN -IN 4 4 - 40 N/C IN REF 2 PLACES 3 2 1 +Vs Vs COM -Vs LO OUT 10 COM 9 SYNC 8 +15 7 BOTTOM VIEW NOTE: INSERT to Vs COM 300 VRMS MAX. For 10kHz bandwidth specify P/N IA297 when consulting factory. .63 (16.0) MAX. 3.53 (89.66) MAX. MODEL IA296 .20 (5.08) MIN. .04 (1.02) DIA.