ELANT EL2075CS, EL2075CN Datasheet

EL2075C

2GHz GBWP Gain-of-10 Stable Operational Amplifier

EL2075C

Features

• 2GHz gain-bandwidth product

• Gain-of-10 stable

• 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%

Applications

• 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

Ordering Information

Part No. Temp. Range Package Outline #

EL2075CN 0°C to +75°C 8-Pin P-DIP MDP0031
EL2075CS 0°C to +75°C 8-Lead SO MDP0027

General Description

The EL2075C is a precision voltage-feedback amplifier featuring a
2GHz gain-bandwidth product, fast settling time, excellent differential
gain and differential phase performance, and a minimum of 50mA out­put current drive over temperature.

The EL2075C is gain-of-10 stable with a -3dB bandwidth of 400MHz
at AV = +10. It has a very low 200µV of input offset voltage, only 2µA
of input bias current, and a fully symmetrical differential input. Like
all voltage-feedback operational amplifiers, the EL2075C allows the
use of reactive or non-linear components in the feedback loop. This
combination of speed and versatility makes the EL2075C the ideal
choice for all op-amp applications at a gain of 10 or greater requiring
high speed and precision, including active filters, integrators, sample­and-holds, and log amps. The low distortion, high output current, and
fast settling makes the EL2075C an ideal amplifier for signal-process­ing and digitizing systems.

Connection Diagrams

DIP and SO Package

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.

September 26, 2001

EL2075C

2GHz GBWP Gain-of-10 Stable Operational Amplifier

EL2075C

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
Thermal Resistance θJA = 95°C/W P-DIP

does not exceed 70mA.

OUT

= 25°C)

A

Operating Temperature 0°C to +75°C

θJA = 175°C/W SO-8

Junction Temperature 175°C

S

Storage Temperature -60°C to +150°C
Note: See EL2071/EL2171 for Thermal Impedance curves.

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 Rejection Ratio
CMRR Common Mode Rejection Ratio
I

S

RIN (diff) RIN (Differential) Open-Loop 25°C 15 kΩ
CIN (diff) CIN (Differential) Open-Loop 25°C 1 pF
RIN (cm) RIN (Common-Mode) 25°C 1 MΩ
CIN (cm) CIN (Common-Mode) 25°C 1 pF
R
CMIR Common-Mode Input

I

OUT

V
V
V
A

A

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

= 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 mV

T

Average Offset Voltage Drift

, T

MIN

[1]

MAX

All 8 µV/°C

2.5 mV

Input Bias Current VCM = 0V All 2 6 µA
Input Offset Current VCM = 0V 25°C 0.1 1 µA

T

, T

MIN

[2]

[3]

MAX

All 70 90 dB
All 70 90 dB

2 µA

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

T

OUT

, T

MIN

MAX

Output Resistance 25°C 50 mΩ

25 mA

25°C ±3 ±3.5 V

Range

T

MIN

, T

MAX

±2.5 V

Output Current All 50 70 mA

OUT

100 Output Voltage Swing 100Ω All ±3 ±3.6 V

OUT

50 Output Voltage Swing 50Ω All ±2.5 ±3.4 V

OUT

100 Open-Loop Gain 100Ω 25°C 1000 2800 V/V

VOL

50 Open-Loop Gain 50Ω 25°C 800 2300 V/V

VOL

1. Measured from T

Output Voltage Swing No Load All ±3.5 ±4 V

T

MIN

, T

MIN

MAX

T

, T

MIN

MAX

, T

.

MAX

800 V/V

600 V/V

2. ±VCC = ±4.5V to 5.5V.

3. ±VIN = ±2.5V, V

OUT

= 0V

2

EL2075C

2GHz GBWP Gain-of-10 Stable Operational Amplifier

Closed Loop AC Electrical Characteristics

VS = ±5V, A

SSBW -3dB Bandwidth

GBWP Gain-Bandwidth Product AV = +100 25°C 2.0 GHz
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 = +10 25°C 60 °
tr1, tf1 Rise Time, Fall Time 0.4V Step, AV = +10 25°C 1.2 ns
tr2, tf2 Rise Time, Fall Time 5V Step, AV = +10 25°C 6 ns
ts1 Settling to 0.1% (AV = -20) 2V Step 25°C 13 ns
ts2 Settling to 0.01% (AV = -20) 2V Step 25°C 25 ns
OS Overshoot 2V Step, AV = +10 25°C 10 %
SR Slew Rate 2V Step, AV = +10 All 500 800 V/µs
DISTORTION
HD2 2nd Harmonic Distortion @ 20MHz, AV = +20 25°C -40 -30 dBc

HD3 3rd Harmonic Distortion @ 20MHz, AV = +20 25°C -65 -50 dBc

1. Large-signal bandwidth calculated using LSBW = Slew Rate / (2¼ • V

2. All distortion measurements are made with V

= +20, Rf = 1500Ω, RL = 100Ω unless otherwise specified.

V

Parameter Description Test Conditions Temp Min Typ Max Unit

AV = +10 25°C 400 MHz

(V

= 0.4VPP)

OUT

AV = +20 25°C 150 200 MHz

T

MIN

, T

MAX

125 MHz

AV = +50 25°C 40 MHz

[1]

= 2V

OUT

PP

[1]

= 5V

OUT

PP

= 0.4V

OUT

PP

= 0.4V

OUT

PP

= 0.4V

OUT

PP

= 0.4V

OUT

PP

[2]

).

= 2VPP, RL = 100¾.

OUT

PEAK

All 80 128 MHz
All 32 50 MHz

25°C 0 0.5 dB

T

MIN

, T

MAX

0.5 dB

25°C 0 1 dB

T

MIN

, T

MAX

1 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

-30 dBc

-50 dBc

EL2075C

3

EL2075C

2GHz GBWP Gain-of-10 Stable Operational Amplifier

EL2075C

Typical Performance Curves

Non-Inverting
Frequency Response

Open Loop Gain
and Phase

PSRR, CMRR, and Closed-Loop
RO Frequency

Inverting Frequency Response Frequency Response

vs Frequency

2nd and 3rd Harmonic
Distortion vs Frequency

for Various RLs

Equivalent Input NoiseOutput Voltage Swing

2-Tone, 3rd Order
Intermodulation Intercept

4