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

EL2180C/EL2280C/EL2480C-

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

• Single- and 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

Part No Package

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

Tape &

Reel Outline #

General Description

The EL2180C/EL2280C/EL2480C are single/dual/quad current-feedback 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

OUTA

INA-

INA+

IN+

VS-

IN-

EL2180C

(8-Pin SO & 8-Pin PDIP)

EL2280C

(8-Pin SO & 8-Pin PDIP)

VS+

OUT

VS+

OUTB

INB-

INB+

July 19, 2001

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.

EL2180C/EL2280C/EL2480C-Preliminary

250MHz / 3mA Current Mode Feedback Amplifiers

Absolute Maximum Ratings (T

Supply Voltage between VS+ and GND +12.6V

Voltage between VS+ and VS- +12.6V

Common-Mode Input Voltage VS- to VS+

Differential Input Voltage ±6V

Current into +IN or -IN ±7.5mA

Internal Power Dissipation See Curves

Operating Ambient Temperature Range -40°C to +85°C

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.

= 25°C)

Operating Junction Temperature

Plastic Packages 150°C

Output Current (EL2180C) ±120mA

Output Current (EL2280C) ±60mA

Output Current (EL2480C) ±60mA

Storage Temperature Range -65°C to +150°C

DC Electrical Characteristics

VS = ±5V, R

EL2180C/EL2280C/EL2480C-Preliminary

Parameter Description Conditions Min Typ Max Unit

TCV

d+I

-I

d-I

CMRR Common Mode Rejection Ratio VCM = ±3.5V 45 50 dB

-ICMR -Input Current Common Mode Rejection VCM = ±3.5V 5 30 µA/V

PSRR Power Supply Rejection Ratio VS is moved from ±4V to ±6V 60 70 dB

-IPSR -Input Current Power Supply Rejection VS is moved from ±4V to ±6V 1 15 µA/V

CMIR Common Mode Input Range ±3.5 ±4.0 V

= 150Ω, T

= 25°C unless otherwise specified.

Input Offset Voltage 2.5 10 mV

Average Input Offset Voltage Drift Measured from T

VOS Matching EL2280C, EL2480C only 0.5 mV

+Input Current 1.5 15 µA

+IIN Matching EL2280C, EL2480C only 20 nA

-Input Current 16 40 µA

-IIN Matching EL2280C, EL2480C only 2 µA

Transimpedance V

+Input Resistance V

+Input Capacitance 1.2 pF

Output Voltage Swing VS = ±5 ±3.5 ±4.0 V

Output Current EL2180C only 80 100 mA

Supply Current Per amplifier 3 6 mA

= ±2.5V 120 300 kΩ

OUT

= ±3.5V 0.5 2 MΩ

VS = +5 Single-supply, high 4.0 V

VS = +5 Single-supply, low 0.3 V

EL2280C only, per amplifier 50 55 mA

EL2480C only, per amplifier 50 55 mA

MIN

to T

MAX

5 µV/°C

AC Electrical Characteristics

VS = ±5V, RF = R

Parameter Description Conditions Min Typ Max Unit

-3dB BW -3dB Bandwidth AV = +1 250 MHz

-3dB BW -3dB Bandwidth AV = +2 180 MHz

0.1dB BW 0.1dB Bandwidth AV = +2 50 MHz

SR Slew Rate V

tR, t

= 750Ω for PDIP and SO packages, R

Rise and Fall Time V

= R

= 560Ω for SOT23-5 package, RL = 150Ω, T

= ±2.5V, AV = +2 600 1200 V/µs

OUT

= ±500 mV 1.5 ns

OUT

= 25°C unless otherwise specified

EL2180C/EL2280C/EL2480C-Preliminary

250MHz / 3mA Current Mode Feedback Amplifiers

AC Electrical Characteristics

VS = ±5V, RF = R

Parameter Description Conditions Min Typ Max Unit

OS Overshoot V

dG Differential Gain AV = +2, R

dP Differential Phase AV = +2, R

dG Differential Gain AV = +1, R

dP Differential Phase AV = +1, R

1. DC offset from 0V to 0.714V, AC amplitude 286mV

Connection Diagrams (Continued)

= 750Ω for PDIP and SO packages, R

Propagation Delay V

0.1% Settling V

= R

= 560Ω for SOT23-5 package, RL = 150Ω, T

= ±500 mV 1.5 ns

OUT

= ±500 mV 3.0 %

OUT

= ±2.5V, AV = -1 15 ns

OUT

= 150Ω

= 500Ω

[1]

= 25°C unless otherwise specified

0.05 %

0.05 °

0.01 %

0.01 °

Channel Separation EL2280C, EL2480C only, f = 5 MHz 85 dB

, f = 3.58MHz

P-P

EL2180C/EL2280C/EL2480C-Preliminary

OUT

GND

IN+

OUTA

INA-

INA+

VS+

INB+

INB-

OUTB

(14-Pin SO & 14-Pin PDIP)

EL2180C

(5-Pin SOT23)

A D

- + -+

- + -+ B C

EL2480C

VS+

INA-

OUTA

OUTD

IN-

OUTD

IND-

IND+

VS-

INC+

INC-

OUTC

INA+

VS+

INB+

INB-

Thermal Pad

OUTB

EL2480C

(24-Pin LPP - Top View)

IND-

IND+

VS-

INC+

INC-

OUTC

EL2180C/EL2280C/EL2480C-Preliminary

250MHz / 3mA Current Mode Feedback Amplifiers

Test Circuit (Per Amplifier)

750Ω 750Ω

EL2180C/EL2280C/EL2480C-Preliminary

EL2180C or

* Note:

½ EL2280C or ¼ EL2480C

Simplified Schematic (Per Amplifier)

V+

+5V

IN+

*see note

IN-

-5V

VS+

VS-

0.1µF

OUT

0.1µF

OUT

150Ω

IN+

V-

OUT

IN-

EL2180C/EL2280C/EL2480C-Preliminary

Typical Performance Curves

EL2180C/EL2280C/EL2480C-Preliminary

250MHz / 3mA Current Mode Feedback Amplifiers

Non-Inverting Frequency Response (Gain) (PDIP and SOIC Packages)

Inverting Frequency Response (Gain) (PDIP and SOIC Packages)

Non–Inverting Frequency Response (Phase) (PDIP and SOIC Packages)

Inverting Frequency Response (Phase) (PDIP and SOIC Packages)

Frequency Response for Various RF and R (PDIP and SOIC Packages)

Frequency Response for Various RL and C (PDIP and SOIC Packages)

Transimpedance (ROL) vs Frequency

PSRR and CMRR vs Frequency

Frequency Response for Various CIN-

EL2180C/EL2280C/EL2480C-Preliminary

250MHz / 3mA Current Mode Feedback Amplifiers

Typical Performance Curves

Voltage and Current Noise vs Frequency

2nd and 3rd Harmonic Distortion vs Frequency

Output Voltage Swing vs Frequency

EL2180C/EL2280C/EL2480C-Preliminary

-3 dB Bandwidth and Peaking vs Supply Voltage for Various Non-Inverting Gains

-3 dB Bandwidth and Peaking vs Supply Voltage for Various Inverting Gains

Output Voltage Swing vs Supply Voltage

Supply Current vs Supply Voltage

Common-Mode Input Range vs Supply Voltage

Slew Rate vs Supply Voltage

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