ELANT EL2280CS-T7, EL2280CS-T13, EL2280CS, EL2480CS-T7, EL2480CS-T13 Datasheet
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EL2180C/EL2280C/EL2480C-Preliminary
250MHz / 3mA Current Mode Feedback Amplifiers
Features
•Single, dual, and quad topologies
•3mA supply current (per amplifier)
•250MHz -3dB bandwidth
•1200V/µs slew rate
•Tiny package package options (SOT23, LPP)
•Low cost
•Singleand dual-supply operation down to ±1.5V
•0.05%/0.05° diff. gain/diff. phase into 150Ω
Applications
•Low power/battery applications
•HDSL amplifiers
•Video amplifiers
•Cable drivers
•RGB amplifiers
•Test equipment amplifiers
•Current to voltage converters
Ordering Information
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Tape & |
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Part No |
Package |
Reel |
Outline # |
EL2180CN |
8-Pin PDIP |
- |
MDP0031 |
EL2180CS |
8-Pin SO |
- |
MDP0027 |
EL2180CS-T7 |
8-Pin SO |
7” |
MDP0027 |
EL2180CS-T13 |
8-Pin SO |
13” |
MDP0027 |
EL2180CW-T7 |
5-Pin SOT23 |
7” |
MDP0038 |
EL2180CW-T13 |
5-Pin SOT23 |
13” |
MDP0038 |
EL2280CN |
8-Pin PDIP |
- |
MDP0031 |
EL2280CS |
8-Pin SO |
- |
MDP0027 |
EL2280CS-T7 |
8-Pin SO |
7” |
MDP0027 |
EL2280CS-T13 |
8-Pin SO |
13” |
MDP0027 |
EL2480CN |
14-Pin PDIP |
- |
MDP0031 |
EL2480CS |
14-Pin SO |
- |
MDP0027 |
EL2480CS-T7 |
14-Pin SO |
7” |
MDP0027 |
EL2480CS-T13 |
14-Pin SO |
13” |
MDP0027 |
EL2480CL |
24-Pin LPP |
- |
MDP0046 |
EL2480CL-T7 |
24-Pin LPP |
7” |
MDP0046 |
EL2480CL-T13 |
24-Pin LPP |
13” |
MDP0046 |
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General Description
The EL2180C/EL2280C/EL2480C are single/dual/quad current-feed- back operational amplifiers that achieve a -3dB bandwidth of 250MHz at a gain of +1 while consuming only 3mA of supply current per amplifier. They will operate with dual supplies ranging from ±1.5V to ±6V or from single supplies ranging from +3V to +12V. In spite of their low supply current, the EL2480C and the EL2280C can output 55mA while swinging to ±4V on ±5V supplies. The EL2180C can output 100mA with similar output swings. These attributes make the EL2180C/EL2280C/EL2480C excellent choices for low power and/or low voltage cable driver, HDSL, or RGB applications.
For applications where board space is extremely critical, the EL2180C is available in the tiny 5-pin SOT23 package, with a footprint size 28% of an 8-pin SO. The EL2480C is also available in a 24-pin LPP package. All are specified for operation over the full -40°C to +85°C temperature range.
Single, dual, and triple versions are also available with the enable function (EL2186C, EL2286C, and EL2386C).
Connection Diagrams
NC |
1 |
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NC |
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IN- |
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VS+ |
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IN+ |
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6 |
OUT |
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VS- |
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NC |
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EL2180C |
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OUTA |
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VS+ |
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INA- |
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OUTB |
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INA+ |
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B |
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INB- |
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VS- |
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INB+ |
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EL2280C |
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Note: All information contained in this data sheet has been carefully checked and is believed to be accurate as of the date of publication; however, this data sheet cannot be a “controlled document”. Current revisions, if any, to these specifications are maintained at the factory and are available upon your request. We recommend checking the revision level before finalization of your design documentation.
© 2001 Elantec Semiconductor, Inc.
-EL2180C/EL2280C/EL2480C
2001 19, July
EL2180C/EL2280C/EL2480C-Preliminary
EL2180C/EL2280C/EL2480C-Preliminary
250MHz / 3mA Current Mode Feedback Amplifiers
Absolute Maximum Ratings (TA = 25°C)
Supply Voltage between VS+ and GND |
+12.6V |
Operating Junction Temperature |
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Voltage between VS+ and VS- |
+12.6V |
Plastic Packages |
150°C |
Common-Mode Input Voltage |
VS- to VS+ |
Output Current (EL2180C) |
±120mA |
Differential Input Voltage |
±6V |
Output Current (EL2280C) |
±60mA |
Current into +IN or -IN |
±7.5mA |
Output Current (EL2480C) |
±60mA |
Internal Power Dissipation |
See Curves |
Storage Temperature Range |
-65°C to +150°C |
Operating Ambient Temperature Range |
-40°C to +85°C |
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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: TJ = TC = TA.
DC Electrical Characteristics
VS = ±5V, RL = 150Ω, TA = 25°C unless otherwise specified.
Parameter |
Description |
Conditions |
Min |
Typ |
Max |
Unit |
VOS |
Input Offset Voltage |
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2.5 |
10 |
mV |
TCVOS |
Average Input Offset Voltage Drift |
Measured from TMIN to TMAX |
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µV/°C |
dVOS |
VOS Matching |
EL2280C, EL2480C only |
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0.5 |
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mV |
+IIN |
+Input Current |
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1.5 |
15 |
µA |
d+IIN |
+IIN Matching |
EL2280C, EL2480C only |
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20 |
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nA |
-IIN |
-Input Current |
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16 |
40 |
µA |
d-IIN |
-IIN Matching |
EL2280C, EL2480C only |
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2 |
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µA |
CMRR |
Common Mode Rejection Ratio |
VCM = ±3.5V |
45 |
50 |
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dB |
-ICMR |
-Input Current Common Mode Rejection |
VCM = ±3.5V |
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5 |
30 |
µA/V |
PSRR |
Power Supply Rejection Ratio |
VS is moved from ±4V to ±6V |
60 |
70 |
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dB |
-IPSR |
-Input Current Power Supply Rejection |
VS is moved from ±4V to ±6V |
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1 |
15 |
µA/V |
ROL |
Transimpedance |
VOUT = ±2.5V |
120 |
300 |
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kΩ |
+RIN |
+Input Resistance |
VCM = ±3.5V |
0.5 |
2 |
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MΩ |
+CIN |
+Input Capacitance |
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1.2 |
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pF |
CMIR |
Common Mode Input Range |
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±3.5 |
±4.0 |
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VO |
Output Voltage Swing |
VS = ±5 |
±3.5 |
±4.0 |
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VS = +5 Single-supply, high |
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4.0 |
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V |
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VS = +5 Single-supply, low |
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0.3 |
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V |
IO |
Output Current |
EL2180C only |
80 |
100 |
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mA |
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EL2280C only, per amplifier |
50 |
55 |
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mA |
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EL2480C only, per amplifier |
50 |
55 |
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mA |
IS |
Supply Current |
Per amplifier |
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3 |
6 |
mA |
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AC Electrical Characteristics
VS = ±5V, RF = RG = 750Ω for PDIP and SO packages, RF = RG = 560Ω for SOT23-5 package, RL = 150Ω, TA = 25°C unless otherwise specified
Parameter |
Description |
Conditions |
Min |
Typ |
Max |
Unit |
-3dB BW |
-3dB Bandwidth |
AV = +1 |
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250 |
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MHz |
-3dB BW |
-3dB Bandwidth |
AV = +2 |
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180 |
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MHz |
0.1dB BW |
0.1dB Bandwidth |
AV = +2 |
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50 |
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SR |
Slew Rate |
VOUT = ±2.5V, AV = +2 |
600 |
1200 |
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V/µs |
tR, tF |
Rise and Fall Time |
VOUT = ±500 mV |
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1.5 |
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ns |
2
EL2180C/EL2280C/EL2480C-Preliminary
250MHz / 3mA Current Mode Feedback Amplifiers
AC Electrical Characteristics
VS = ±5V, RF = RG = 750Ω for PDIP and SO packages, RF = RG = 560Ω for SOT23-5 package, RL = 150Ω, TA = 25°C unless otherwise specified
Parameter |
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Description |
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Min |
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tPD |
Propagation Delay |
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VOUT = ±500 mV |
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1.5 |
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OS |
Overshoot |
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VOUT = ±500 mV |
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3.0 |
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tS |
0.1% Settling |
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VOUT = ±2.5V, AV = -1 |
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dG |
Differential Gain |
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AV = +2, RL = 150Ω [1] |
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0.05 |
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dP |
Differential Phase |
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AV = +2, RL = 150Ω [1] |
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0.05 |
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dG |
Differential Gain |
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AV = +1, RL = 500Ω [1] |
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0.01 |
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dP |
Differential Phase |
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AV = +1, RL = 500Ω [1] |
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0.01 |
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CS |
Channel Separation |
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EL2280C, EL2480C only, f = 5 MHz |
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85 |
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dB |
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1. DC offset from 0V to 0.714V, AC amplitude 286mVP-P, f = 3.58MHz |
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Connection Diagrams (Continued) |
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OUT |
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5 |
VS+ |
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INA- |
OUTA |
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OUTD |
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GND |
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IN+ |
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4 |
IN- |
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EL2180C |
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NC |
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INA+ |
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IND+ |
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OUTA |
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OUTD |
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VS+ |
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Thermal Pad |
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VS- |
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IND- |
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NC |
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IND+ |
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INB+ |
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INC+ |
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VS+ |
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VS- |
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INC+ |
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+ |
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INB- |
OUTB |
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OUTC |
INC- |
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INB- |
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INC- |
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EL2480C |
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OUTB |
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OUTC |
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EL2480C |
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Preliminary-EL2180C/EL2280C/EL2480C
3
EL2180C/EL2280C/EL2480C-Preliminary
EL2180C/EL2280C/EL2480C-Preliminary
250MHz / 3mA Current Mode Feedback Amplifiers
Test Circuit (Per Amplifier)
0.1µF
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750Ω 750Ω
*Note: EL2180C or
½EL2280C or ¼ EL2480C
Simplified Schematic (Per Amplifier)
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V- |
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4
EL2180C/EL2280C/EL2480C-Preliminary
250MHz / 3mA Current Mode Feedback Amplifiers
Typical Performance Curves
Non-Inverting Frequency |
Non–Inverting Frequency |
Frequency Response |
Response (Gain) |
Response (Phase) |
for Various RF and RG |
(PDIP and SOIC Packages) |
(PDIP and SOIC Packages) |
(PDIP and SOIC Packages) |
Inverting Frequency |
Inverting Frequency |
Frequency Response |
Response (Gain) |
Response (Phase) |
for Various RL and CL |
(PDIP and SOIC Packages) |
(PDIP and SOIC Packages) |
(PDIP and SOIC Packages) |
Transimpedance (ROL) vs |
PSRR and CMRR |
Frequency Response for |
Frequency |
vs Frequency |
Various CIN- |
Preliminary-EL2180C/EL2280C/EL2480C
5
EL2180C/EL2280C/EL2480C-Preliminary
EL2180C/EL2280C/EL2480C-Preliminary
250MHz / 3mA Current Mode Feedback Amplifiers
Typical Performance Curves
Voltage and Current |
2nd and 3rd Harmonic |
Output Voltage |
Noise vs Frequency |
Distortion vs Frequency |
Swing vs Frequency |
-3 dB Bandwidth and Peaking |
-3 dB Bandwidth and Peaking |
Output Voltage Swing |
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vs Supply Voltage for |
vs Supply Voltage for |
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vs Supply Voltage |
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Various Non-Inverting Gains |
Various Inverting Gains |
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Supply Current vs |
Common-Mode Input Range |
Slew Rate vs |
Supply Voltage |
vs Supply Voltage |
Supply Voltage |
6
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