The EL5172 and EL5372 are single and triple high
bandwidth amplifiers designed to extract the difference
signal from noisy environments. They are primarily targeted
for applications such as receiving signals from twisted-pair
lines or any application where common mode noise injection
is likely to occur.
The EL5172 and EL5372 are stable for a gain of one and
requires two external resistors to set the voltage gain.
The output common mode level is set by the reference pin
(V
), which has a -3dB bandwidth of over 120MHz.
REF
Generally, this pin is grounded but it can be tied to any
voltage reference.
The output can deliver a maximum of ±60mA and is short
circuit protected to withstand a temporary overload
condition.
The EL5172 is available in the 8 Ld SOIC and 8 Ld MSOP
packages and the EL5372 in a 24 Ld QSOP package. Both
are specified for operation over the full -40°C to +85°C
temperature range.
Pinouts
EL5172
(8 LD SOIC, MSOP)
TOP VIEW
EL5372
(24 LD QSOP)
TOP VIEW
FN7311.8
Features
• Differential input range ±2.3V
• 250MHz 3dB bandwidth
• 800V/µs slew rate
• 60mA maximum output current
• Single 5V or dual ±5V supplies
• Low power - 5mA to 6mA per channel
• Pb-free available (RoHS compliant)
Applications
• Twisted-pair receivers
• Differential line receivers
• VGA over twisted-pair
• ADSL/HDSL receivers
• Differential to single-ended amplification
• Reception of analog signals in a noisy environment
FB
IN+
IN-
REF
1
2
+
-
3
4
OUT
8
VS-
7
VS+
6
EN
5
REF1
INP1
INN1
NC
REF2
INP2
INN2
NC
REF3
INP3
INN3
NC
1
2
+
-
3
4
5
6
+
-
7
8
9
10
+
11
-
12
24
23
22
21
20
19
18
17
16
15
14
13
NC
FB1
OUT1
NC
VSP
VSN
NC
FB2
OUT2
EN
FB3
OUT3
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
| Intersil (and design) is a registered trademark of Intersil Americas Inc.
NOTE: These Intersil Pb-free plastic packaged products employ special Pb-free material sets; molding compounds/die attach materials and 100%
matte tin plate PLUS ANNEAL - e3 termination finish, which is 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.
CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product reliability and
result in failures not covered by warranty.
IMPORTANT NOTE: All parameters having Min/Max specifications are guaranteed. Typ values are for information purposes only. Unless otherwise noted, all tests are
at the specified temperature and are pulsed tests, therefore: T
Settling Time to 0.1%V
Output Overdrive Recovery Time20ns
=1, CL = 2.7pF25MHz
V
V
OUT
OUT
OUT
= 3V
= 3V
= 2V
, 20% to 80%, EL51725508001000V/µs
P-P
, 20% to 80%, EL53725507001000V/µs
P-P
P-P
10ns
GBWPGain Bandwidth Product100MHz
V
BW(-3dB) V
REF
V
SRV
REF
V
N
I
N
HD2Second Harmonic DistortionV
HD3Third Harmonic DistortionV
dGDifferential Gain at 3.58MHzR
dθDifferential Phase at 3.58MHzR
e
S
-3dB BandwidthAV =1, CL = 2.7pF120MHz
REF
Slew RateV
REF
OUT
= 2V
, 20% to 80%600V/µs
P-P
Input Voltage Noiseat f = 11kHz26nV/√Hz
Input Current Noiseat f = 11kHz2pA/√Hz
= 1V
OUT
V
= 2V
OUT
= 1V
OUT
V
= 2V
OUT
= 150Ω, AV = 20.04%
L
= 150Ω, AV = 20.41°
L
, 5MHz-66dBc
P-P
, 50MHz-63dBc
P-P
, 5MHz-84dBc
P-P
, 50MHz-76dBc
P-P
Channel Separation at 100kHzEL5372 only90dB
INPUT CHARACTERISTICS
V
OS
I
IN
R
IN
C
IN
Input Referred Offset Voltage±7±25mV
Input Bias Current (VIN, V
INB
, V
)-14-6-3µA
REF
Differential Input Resistance300kΩ
Differential Input Capacitance1pF
DMIRDifferential Input Range±2.1±2.38±2.5V
CMIR+Common Mode Positive Inpu t Range at V
CMIR-Common Mode Positive Input Range at V
V
REFIN+
V
REFIN-
Reference Input Positive Voltage RangeVIN+ = VIN- = 0V3.33.7V
Reference Input Negative Voltage RangeVIN+ = VIN- = 0V-3.9-3.6
CMRRInput Common Mode Rejection Ratio V
GainGain AccuracyV
= ±2.5V7595dB
IN
= 10.98511.015V
IN
OUTPUT CHARACTERISTICS
V
OUT
Positive Output Voltage SwingRL = 500Ω to GND3.33.63V
Negative Output Voltage SwingRL = 500Ω to GND-3.87-3.5V
I
(Max)Maximum Output CurrentRL = 10Ω±60±95mA
OUT
R
OUT
Output Impedance100mΩ
SUPPLY
V
SUPPLY
I
S (on)
I
+Positive Power Supply Current - DisabledEN pin tied to 4.8V, EL517280100µA
S (off)
I
-Negative Power Supply Current - Disabled-150-120-90µA
S (off)
Supply Operating RangeVS+ to VS-4.7511V
Power Supply Current Per Channel - Enabled4.65.67mA
EN
pin tied to 4.8V, EL53721.75µA
PSRRPower Supply Rejection RatioVS from ±4.5V to ±5.5V5058dB
ENABLE
t
EN
t
DS
V
IH
V
IL
I
IH-EN
I
IL-EN
Enable Time150ns
Disable Time1.4µs
EN Pin Voltage for Power-upVS+ - 1.5V
EN Pin Voltage for Shut-downVS+ - 0.5V
EN Pin Input Current High Per ChannelAt V
EN Pin Input Current Low Per ChannelAt V
= 5V4060µA
EN
= 0V-10-3µA
EN
4
FN7311.8
January 25, 2008
EL5172, EL5372
Pin Descriptions
EL5172EL5372PIN NAMEPIN FUNCTION
1FBFeedback input
2IN+Non-inverting input
3IN-Inverting input
4REFSets the common mode output voltage level
5EN
6VS+Positive supply voltage
7VS-Negative supply voltage
8OUTOutput voltage