Dual Ultra Low Noise Wideband Amplifiers
EL5236, EL5237
Features
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.
• Bandwidth (-3dB) of 250MHz @ A = +2
V
• Gain Bandwidth Product: 300MHz
• Voltage Noise: 1.5nV/√Hz
• Current Noise: 1.8pA/√Hz
• I : 5.8mA/Channel
S
• 100mA I
OUT
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.
• Fast Enable/Disable (EL5237 only)
• ±2.5V to ±6V Supply Range Operation
Applications
• Differential ADC Driver
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.
• 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
270pF
+5V
39pF
422
30pF
+5V
+3.3V
255
215
+
-
-
77
25
25
ISL5861IB
+
130pF
½ ISL5236
½ ISL5236
180pF
LOW
POWER
12-BIT
1.27nF
0 TO 20mA
0V CENTERED
4VP-P
DIFFERENTIAL
100
337
4.66k
+5V
200
DAC
77
100
130MSPS
180pF
215
½ ISL5236
0.1µF
422
½ ISL5236
+
-
255
-
+
1.27nF
20mA TO 0
-5V
130pF
-5V
39pF
30pF
270pF
422
LOW POWER, LOW NOISE, DIFFERENTIAL DAC OUTPUT TRANSIMPEDANCE WITH A 5TH ORDER, 5MHz, BUTTERWORTH FILTER
FIGURE 1. TYPICAL APPLICATION
March 31, 2011
FN7833.0
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 |Copyright Intersil Americas Inc. 2011. All Rights Reserved
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
All other trademarks mentioned are the property of their respective owners.
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