EL5237 INTERSIL [Intersil Corporation], EL5237 Datasheet

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EL5237

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

Related parts for EL5237

EL5237 Summary of contents

Page 1

... 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. +3.3V 77 ...

Page 2

... TOP VIEW VOUTA 1 VINA VINA VS EL5237 (10 LD MSOP) TOP VIEW VINA+ 1 ENA 2 VS- 3 ENB 4 VINB EL5236, EL5237 Pin Descriptions EL5236 (8 Ld SOIC AND 8 Ld MSOP) 8 VS+ 7 VOUTB 6 VINB- 5 VINB+ 10 VINA- 9 VOUTA 8 VS+ VOUTB 7 VINB- 6 EL5237 PIN (10 Ld MSOP) NAME ...

Page 3

... RoHS compliant and compatible with both SnPb and Pb-free soldering operations). Intersil Pb- free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020. 3. For Moisture Sensitivity Level (MSL), please see device information page for EL5236, EL5237. For more information on MSL please see techbrief TB363. ...

Page 4

... Average Offset Voltage Drift Input Bias Current Input Offset Current Input Impedance Input Capacitance Common-Mode Input Range Common-Mode Rejection Ratio Open-Loop Gain 4 EL5236, EL5237 Thermal Information (T = +25°C) A Thermal Resistance (Typical, Notes -0.3V, V +0. MSOP Package ...

Page 5

... Output Swing High Output Swing Low Short Circuit Current POWER SUPPLY PERFORMANCE Power Supply Rejection Ratio Supply Current Enable (Per Amplifier) Supply Current Disable (Per Amplifier) (EL5237) Operating Range ENABLE (EL5237) Enable Time Disable Time EN Pin Input High Current EN Pin Input Low Current ...

Page 6

... EN Pin Input High Voltage for Power-down EN Pin Input Low Voltage for Power-up NOTE: 6. Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise specified. Temperature limits established by characterization and are not production tested. 6 EL5236, EL5237 +2.5V -2.5V 500Ω ...

Page 7

... P-P P 10M FREQUENCY (Hz) FIGURE 4. NON-INVERTING LARGE SIGNAL RESPONSE 100 100 1k 10k 100k FREQUENCY (Hz) FIGURE 6. INPUT SPOT NOISE 7 EL5236, EL5237 V = ±6V, T ≈ +25° 100M 1G FIGURE 3. INVERTING SMALL SIGNAL FREQUENCY RESPONSE 9 100mV P-P P ...

Page 8

... R = 1kΩ 3rd HD(dBc) L -90 -100 -110 R = 200Ω 3rd HD(dBc) L -120 R = 500Ω 2nd HD(dBc) L -130 1M FREQUENCY (Hz) FIGURE 12. NON-INVERTING HD2 AND HD3 EL5236, EL5237 V = ±6V, T ≈ +25° - 3rd HD(dBc) V -30 -40 -50 -60 -70 -80 -90 -100 2nd HD(dBc) ...

Page 9

... RESPONSE VS = ±6V 2V/DIV FIGURE 16. NON-INVERTING OVERDRIVE RECOVERY 0.07 DIFF PHASE 0.06 0.05 0.04 0.03 0.02 DIFF GAIN 0. NUMBER OF 150Ω LOADS FIGURE 18. DIFFERENTIAL GAIN AND PHASE vs VIDEO LOADS 9 EL5236, EL5237 V = ±6V, T ≈ +25° +2V/ 2.50 2.00 1.50 1.00 0.50 0 -0.50 -1.00 ±200mV -1.50 -2.00 -2.50 FIGURE 15. INVERTING LARGE AND SMALL SIGNAL STEP RESPONSE FIGURE 17 ...

Page 10

... S 18 SUPPLY CURRENT OUTPUT CURRENT - TEMPERATURE (°C) FIGURE 22. SUPPLY CURRENT AND OUTPUT CURRENT OVER-TEMPERATURE FIGURE 24. NON-INVERTING TURN ON AND TURN OFF DELAY 10 EL5236, EL5237 V = ±6V, T ≈ +25° 120 -20 100 -40 -60 80 -80 -100 60 -120 -140 40 -160 ...

Page 11

... O 180 160 140 120 100 -I (mA (mA 2.5 3.0 3.5 4.0 4.5 SUPPLY VOLTAGE (±V) FIGURE 30. SUPPLY CURRENT vs SUPPLY VOLTAGE 11 EL5236, EL5237 V = ±6V, T ≈ +25° ± ± ± ± 100M 1G 1M FIGURE 27. INVERTING SMALL SIGNAL RESPONSE VS SUPPLY ...

Page 12

... FREQUENCY (Hz) FIGURE 32. NON-INVERTING SMALL SIGNAL RESPONSE vs GAIN 15 1V P-P 12 500mV P 10M FREQUENCY (Hz) FIGURE 34. NON-INVERTING LARGE SIGNAL RESPONSE 12 EL5236, EL5237 V = ±2.5V, T ≈ +25° 100M 1G 1M FIGURE 33. INVERTING SMALL SIGNAL RESPONSE vs GAIN 15 12 P-P 100mV ...

Page 13

... Applications Information Non-inverting Operation The dual wideband EL5236 (and EL5237 with disable) provides a very power efficient low gain optimized amplifier solution using a slightly decompensated VFA design. This gives a lower input referred voltage noise and higher slew rate at the very low 5.6mA/ch nominal supply current. Unity gain operation is possible with external compensation but most high speed designs are at a gain > ...

Page 14

... DAC output common mode. This was used to return the final output ground centered 14 EL5236, EL5237 differential signal. The MFB design of the output stage uses a feedback capacitor inside the filter that normally expects a unity gain stable op amp for implementation. Adding the two capacitors to ground on the inverting inputs of this stage shapes the noise gain up at higher frequencies holding this stage stable ...

Page 15

... Shutdown Operation (EL5237 only) EL5237 has the feature to enable or disable each amplifier to save power when not in use. Pulling low will enable the amplifier and pulling high will disable the amplifier. Refer to the “Electrical Specifications” tables for appropriate values to use. Power Supply De-coupling and Layout ...

Page 16

... However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries. For information regarding Intersil Corporation and its products, see 16 EL5236, EL5237 www.intersil.com/askourstaff http://rel.intersil.com/reports/sear For additional products, see www ...

Page 17

... Rev 0, 9/09 3.0±0.1 8 PIN 0.65 BSC TOP VIEW H 0.33 +0.07/ -0.08 0. SIDE VIEW 1 5.80 4.40 3.00 0.65 TYPICAL RECOMMENDED LAND PATTERN 17 EL5236, EL5237 A 0. 4.9±0.15 3.0±0.1 1.10 Max B 0.86±0.09 C SEATING PLANE 0.10 ± 0.05 0.10 C NOTES: 1. Dimensions are in millimeters. 2. Dimensioning and tolerancing conform to JEDEC MO-187-AA and AMSE Y14.5m-1994. ...

Page 18

... PIN 0.5 BSC TOP VIEW H 0.23 +0.07/ -0.08 0. SIDE VIEW 1 5.80 4.40 3.00 0.50 TYPICAL RECOMMENDED LAND PATTERN 18 EL5236, EL5237 A 0. 1.10 Max B 0.86 ± 0.09 C SEATING PLANE 0.10 ± 0.05 0.10 C NOTES: 1. Dimensions are in millimeters. 2. Dimensioning and tolerancing conform to AMSE Y14.5m-1994. 3. Plastic or metal protrusions of 0.15mm max per side are not included ...

Page 19

... M8.15E 8 LEAD NARROW BODY SMALL OUTLINE PLASTIC PACKAGE Rev 0, 08/09 4 4.90 ± 0.10 PIN NO.1 ID MARK 5 1.27 TOP VIEW 1.75 MAX 0.175 ± 0.075 SIDE VIEW “A (1.27) (5.40) TYPICAL RECOMMENDED LAND PATTERN 19 EL5236, EL5237 A DETAIL "A" B 6.0 ± 0.20 3.90 ± 0.10 4 (0.35) x 45° 0.43 ± 0.076 0. 1.45 ± 0.1 (0.60) NOTES: (1.50) 1 ...

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