ELANT EL2073CS, EL2073CN Datasheet

EL2073C

200MHz Unity-Gain Stable Operational Amplifier

EL2073C

Features

• 200MHz gain-bandwidth product

• Unity-gain stable

• Ultra low video distortion =

0.01%/0.015° @ NTSC/PAL

• Conventional voltage-feedback
topology

• Low offset voltage = 200µV

• Low bias current = 2µA

• Low offset current = 0.1µA

• Output current = 50mA over
temperature

• Fast settling = 13ns to 0.1%

• Low distortion = -60dB HD2, ------

-70dB HD3 @ 20MHz, 2VPP, AV
= +1

Applications

• High resolution video

• Active filters/integrators

• High-speed signal processing

• ADC/DAC buffers

• Pulse/RF amplifiers

• Pin diode receivers

• Log amplifiers

• Photo multiplier amplifiers

• High speed sample-and-holds

General Description

The EL2073C is a precision voltage-feedback amplifier featuring a
200MHz gain-bandwidth product, fast settling time, excellent differ­ential gain and differential phase performance, and a minimum of
50mA output current drive over temperature.

The EL2073C is unity-gain stable with a -3dB bandwidth of 400MHz.
It has a very low 200µV of input offset voltage, only 2µA of input bias
current, and a fully symmetrical differential input. Like all voltage­feedback operational amplifiers, the EL2073C allows the use of reac­tive or non-linear components in the feedback loop. This combination
of speed and versatility makes the EL2073C the ideal choice for all
op-amp applications requiring high speed and precision, including
active filters, integrators, sample-and-holds, and log amps. The low
distortion, high output current, and fast settling makes the EL2073C
an ideal amplifier for signal-processing and digitizing systems.

Ordering Information

Part No. Temp. Range Package Outline #

EL2073CN -40°C to +85°C 8-Pin P-DIP MDP0031

EL2073CS -40°C to +85°C 8-Lead SO MDP0027

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.

Connection Diagrams

DIP and SO Package

September 26, 2001

EL2073C

200MHz Unity-Gain Stable Operational Amplifier

EL2073C

Absolute Maximum Ratings (T

Supply Voltage (VS) ±7V

Output Current

Output is short-circuit protected to ground,
however, maximum reliability is obtained if I

Common-Mode Input ±V

Differential Input Voltage 5V

does not exceed 70mA.

OUT

= 25°C)

A

Thermal Resistance θ

JA

θ

JA

Operating Temperature -40°C to +85°C

Junction Temperature 175°C

S

Storage Temperature -60°C to +150°C

Note: See EL2071/EL2171 for Thermal Impedance curves.

= 95°C/W P-DIP

= 175°C/W SO-8

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.

Open Loop DC Electrical Characteristics

VS = ±5V, R

V

TCV

I

B

I

OS

PSRR Power Supply

CMRR Common Mode

I

S

RIN (diff) R

CIN (diff) CIN (Differential) Open-Loop 25°C 1 pF

RIN (cm) R

CIN (cm) CIN (Common-Mode) 25°C 1 pF

R

CMIR Common-Mode Input

I

OUT

V

V

V

A

= 100Ω, unless otherwise specified

L

Parameter Description Test Conditions Temp Min Typ Max Unit

OS

OS

Input Offset Voltage VCM = 0V 25°C 0.2 1.5 mV

T

Average Offset

, T

MIN

[1]

MAX

All 8 µV/°C

3 mV

Voltage Drift

Input Bias Current 25°C 2 6 µA

T

MIN

, T

MAX

2 6 µA

Input Offset Current VCM = 0V 25°C 0.1 1 µA

T

Rejection Ratio

Rejection Ratio

, T

MIN

[2]

[3]

MAX

25°C 60 80 dB

T

MIN

, T

MAX

60 dB

25°C 65 90 dB

T

MIN

, T

MAX

65 dB

2 µA

Supply Current—Quiescent No Load 25°C 21 25 mA

T

OUT

, T

MIN

(Differential) Open-Loop 25°C 15 kΩ

IN

(Common-Mode) 25°C 1 MΩ

IN

MAX

Output Resistance 25°C 20 mΩ

25 mA

25°C ±3 ±3.5 V

Range

T

MIN

, T

MAX

±2.5 V

Output Current 25°C 50 70 mA

T

, T

MIN

OUT

100 Output Voltage Swing 100Ω 25°C ±3 ±3.6 V

OUT

50 Output Voltage Swing 50Ω 25°C ±3 ±3.4 V

OUT

100 Open-Loop Gain 100Ω 25°C 500 1000 V/V

VOL

Output Voltage Swing No Load 25°C ±3.5 ±4 V

MAX

T

, T

MIN

MAX

T

, T

MIN

MAX

T

, T

MIN

MAX

T

, T

MIN

MAX

50 mA

±3.5 V

±3 V

±2.5

400 V/V

2

EL2073C

200MHz Unity-Gain Stable Operational Amplifier

Open Loop DC Electrical Characteristics (Continued)

VS = ±5V, R

A

eN@ > 1MHz Noise Voltage 1–100MHz 25°C 2.3 nV/√Hz
iN@ > 100kHz Noise Current 100k–100MHz 25°C 3.2 pA/√Hz

1. Measured from T

2. ±VCC = ±4.5V to 5.5V.

3. ±VIN = ±2.5V, V

Closed Loop AC Electrical Characteristics

VS = ±5V, A

Parameter Description Test Conditions Temp Min Typ Max Unit

SSBW -3dB Bandwidth

GBWP Gain-Bandwidth Product AV = +10 25°C 200 MHz

LSBWa -3dB Bandwidth V

LSBWb -3dB Bandwidth V

GFPL Peaking (<50MHz) V

GFPH Peaking (>50MHz) V

GFR Rolloff (<100MHz) V

LPD Linear Phase Deviation (<100MHz) V

PM Phase Margin AV = +1 25°C 60 °

tr1, tf1 Rise Time, Fall Time 0.4V Step, AV = +2 25°C 2 ns

tr2, tf2 Rise Time, Fall Time 5V Step, AV = +2 25°C 15 ns

ts1 Settling to 0.1% (AV = -1) 2V Step 25°C 13 ns

ts2 Settling to 0.01% (AV = -1) 2V Step 25°C 25 ns

OS Overshoot 2V Step 25°C 5 %

SR Slew Rate 2V Step All 175 250 V/µs

DISTORTION

HD2a 2nd Harmonic Distortion @ 10MHz, AV = +2 25°C -65 -55 dBc

HD2b 2nd Harmonic Distortion @ 20MHz, AV = +1 25°C -60 -50 dBc

HD2c 2nd Harmonic Distortion @ 20MHz, AV = +2 25°C -55 -50 dBc

HD3a 3rd Harmonic Distortion @ 10MHz, AV = +2 25°C -72 -60 dBc

HD3b 3rd Harmonic Distortion @ 20MHz, AV = +1 25°C -70 -55 dBc

HD3c 3rd Harmonic Distortion @ 20MHz, AV = +2 25°C -70 -60 dBc

= 100Ω, unless otherwise specified

L

Parameter Description Test Conditions Temp Min Typ Max Unit

50 Open-Loop Gain 50Ω 25°C 400 800 V/V

VOL

, T

.

MIN

MAX

= 0V

OUT

= +1, Rf = 0Ω, RL = 100Ω unless otherwise specified

V

T

MIN

, T

MAX

300 V/V

AV = +1 25°C 150 300 MHz

(V

= 0.4VPP)

OUT

AV = -1 25°C 200 MHz

AV = +2 25°C 150 200 MHz

T

MIN

, T

MAX

125 MHz

AV = +5 25°C 40 MHz

AV = +10 25°C 20 MHz

[1]

= 2V

OUT

PP

[1]

= 5VPP

OUT

= 0.4V

OUT

OUT

OUT

OUT

[2]

= 0.4V

= 0.4V

= 0.4V

PP

PP

PP

PP

All 50 85 MHz

All 11 16 MHz

25°C 0 0.5 dB

T

MIN

, T

MAX

0.5 dB

25°C 1 3 dB

T

MIN

, T

MAX

3 dB

25°C 0.1 0.5 dB

T

MIN

, T

MAX

0.5 dB

All 1 1.8 °

T

, T

MIN

MAX

T

, T

MIN

MAX

-45 dBc

-60 dBc

EL2073C

3

EL2073C

200MHz Unity-Gain Stable Operational Amplifier

EL2073C

Closed Loop AC Electrical Characteristics

VS = ±5V, A

Parameter Description Test Conditions Temp Min Typ Max Unit

VIDEO PERFORMANCE

dG Differential Gain NTSC 25°C 0.01 0.05 %

dP Differential Phase NTSC 25°C 0.015 0.05 °

dG Differential Gain 30MHz 25°C 0.1 %

dP Differential Phase 30MHz 25°C 0.1 °

VBW ±0.1dB Bandwidth Flatness 25°C 25 50 MHz

= +1, Rf = 0Ω, RL = 100Ω unless otherwise specified

V

[3]

1. Large-signal bandwidth calculated using LSBW = Slew Rate / 2π V

2. All distortion measurements are made with V

3. Video performance measured at AV = +1 with 2 times normal video level across R

terminated 50Ω load, i.e., 0–100 IRE, 40IREpp giving a 1VPP video signal across the 50Ω load. For other values of R

OUT

= 2VPP, R

= 100Ω

L

PEAK

.

= 100Ω. This corresponds to standard video levels across a back-

L

, see curves.

L

pp

pp

pp

pp

4