EL5236 Datasheet, PDF (1/19 Pages) Intersil Corporation – Dual Ultra Low Noise Wideband Amplifiers Voltage Noise: 1.5nV/√Hz

Dual Ultra Low Noise Wideband Amplifiers
EL5236, EL5237
The EL5236 is a dual, low noise, 300MHz Gain Bandwidth
product Voltage Feedback Op Amp (VFA). The minimum operating
gain of 2 comes with a very low input noise voltage of 1.5nV/√ Hz
and 1.8pA/√Hz current noise. This makes this dual device ideal
for low noise differential active filters, dual channel photodiode
detectors, differential receivers with equalization, and any other
wideband, high dynamic range application.
Each channel requires only 5.8mA on a ±6V supply. Minimal
performance change over a supply range of ±2.5V to ±6V is
provided (or single +5V ->+12V). Where system power is
paramount, the EL5237 dual with disable allows the amplifiers
to be separately powered down to less than 20µA/Ch.
The 8 Ld dual EL5236 is available in the industry standard
pinout SO-8 or space saving MSOP-8. The 10 Ld EL5237 is
available in an MSOP-10.
Features
• Bandwidth (-3dB) of 250MHz @ A_V = +2
• Gain Bandwidth Product: 300MHz
• Voltage Noise: 1.5nV/√Hz
• Current Noise: 1.8pA/√Hz
• I_S: 5.8mA/Channel
• 100mA I_OUT
• Fast Enable/Disable (EL5237 only)
• ±2.5V to ±6V Supply Range Operation
Applications
• Differential ADC Driver
• Complementary DAC Output Driver
• Ultrasound Input Amplifiers
• AGC and PLL Active Filters
• Transimpedance Designs
Related Products
• ISL28290, Dual, 80MHz, 1nV/√Hz
• ISL55290, Dual, 700MHz, 1.1nV/√Hz
422
+3.3V
ISL5861IB
25
LOW
POWER ^{0 TO 20mA}
12-BIT
DAC
25
130MSPS
20mA TO 0
77
1.27nF
77
1.27nF
255
130pF
200
255
130pF
270pF
+5V
+
-
½ ISL5236
100
215
180pF
100
½ ISL5236
-
+
180pF
215
-5V
270pF
39pF 30pF
422
337
+5V
-
+
½ ISL5236
4.66k
+5V
0.1µF
422
+ ^{½ ISL5236}
-
-5V
39pF 30pF
422
0V CENTERED
4V_P-P
DIFFERENTIAL
LOW POWER, LOW NOISE, DIFFERENTIAL DAC OUTPUT TRANSIMPEDANCE WITH A 5TH ORDER, 5MHz, BUTTERWORTH FILTER
FIGURE 1. TYPICAL APPLICATION
March 31, 2011
1
FN7833.0
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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