ELANT EL2044CS, EL2044CN Datasheet

EL2044C

Low Power/Low Voltage 120MHz Unity-Gain Stable Operational Amplifier

EL2044C

Features

• 120MHz -3dB bandwidth

• Unity-gain stable

• Low supply current
= 5.2mA at VS = ±15V

• Wide supply range
= ±2V to ±18V dual-supply
= 2.5V to 36V single-supply

• High slew rate = 325V/µs

• Fast settling = 80ns to 0.1% for a
10V step

• Low differential gain = 0.04% at
AV=+2, R

= 150Ω

L

• Low differential phase = 0.15° at
AV = +2, R

= 150Ω

L

• Stable with unlimited capacitive
load

• Wide output voltage swing
= ±13.6V with VS = ±15V,
R

= 1000Ω

L

= 3.8V/0.3V with VS = +5V,
R

= 500Ω

L

• Low cost, enhanced replacement
for the AD847 and LM6361

Applications

• Video amplifier

• Single-supply amplifier

• Active filters/integrators

• High-speed sample-and-hold

• High-speed signal processing

• ADC/DAC buffer

• Pulse/RF amplifier

• Pin diode receiver

• Log amplifier

• Photo multiplier amplifier

• Difference amplifier

General Description

The EL2044C is a high speed, low power, low cost monolithic opera­tional amplifier built on Elantec's proprietary complementary bipolar
process. The EL2044C is unity-gain stable and features a 325V/µs
slew rate and 120MHz gain-bandwidth product while requiring only

5.2 mA of supply current.

The power supply operating range of the EL2044C is from ±18V
down to as little as ±2V. For single-supply operation, the EL2044C
operates from 36V down to as little as 2.5V. The excellent power sup­ply operating range of the EL2044C makes it an obvious choice for
applications on a single +5V supply.

The EL2044C also features an extremely wide output voltage swing of
±13.6V with VS = ±15V and R
swing is a wide ±3.8V with R

= 1000Ω. At ±5V, output voltage

L

= 500Ω and ±3.2V with RL = 150Ω.

L

Furthermore, for single-supply operation at +5V, output voltage swing
is an excellent 0.3V to 3.8V with R

= 500Ω.

L

At a gain of +1, the EL2044C has a -3dB bandwidth of 120MHz with
a phase margin of 50°. It can drive unlimited load capacitance, and
because of its conventional voltage-feedback topology, the EL2044C
allows the use of reactive or non-linear elements in its feedback net­work. This versatility combined with low cost and 75mA of output­current drive makes the EL2044C an ideal choice for price-sensitive
applications requiring low power and high speed.

Connection Diagram

DIP and SO Package

September 26, 2001

Ordering Information

Part No. Temp. Range Package Outline #

EL2044CN -40°C to +85°C 8-Pin P-DIP MDP0031

EL2044CS -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.

EL2044C

Low Power/Low Voltage 120MHz Unity-Gain Stable Operational Amplifier

EL2044C

Absolute Maximum Ratings (T

Supply Voltage (VS) ±18V or 36V

Peak Output Current (IOP) Short-Circuit Protected

Output Short-Circuit Duration Infinite

(A heat-sink is required to keep junction temperature
below absolute maximum when an output is shorted.)

Input Voltage (V

Differential Input Voltage (dVIN) ±10V

IN)

= 25°C)

A

Power Dissipation (PD) See Curves

Operating Temperature

Range (TA) -40°C to +85°C

Operating Junction

Temperature (TJ) 150°C

±V

S

Storage Temperature (TST) -65°C to +150°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.

DC Electrical Characteristics

VS = ±15V, R

Parameter Description Condition Temp Min Typ Max Unit

V

OS

TCV

I

B

I

OS

TCI

A

VOL

PSRR Power Supply

CMRR Common-Mode

CMIR Common-Mode

V

OUT

I

SC

= 1000Ω, unless otherwise specified

L

Input Offset

Voltage

OS

Average Offset (Note 2) All 10.0 µV/°C

Voltage Drift

Input Bias

Current

Input Offset

Current

OS

Average Offset

Current Drift

Open-Loop Gain VS = ±15V,V

Rejection Ratio

Rejection Ratio

Input Range

Output Voltage

Swing

Output Short

Circuit Current

VS = ±15V 25°C 0.5 7.0 mV

T

MIN

, T

MAX

13.0 mV

VS = ±15V 25°C 2.8 8.2 µA

T

MIN

, T

MAX

11.2 µA

VS = ±5V 25°C 2.8 µA

VS = ±15V 25°C 50 300 nA

T

, T

MIN

VS = ±5V 25°C 50 nA

[1]

VS = ±5V, V

VS = ±5V, V

= ±10V, R

OUT

= ±2.5V, R

OUT

= ±2.5V, R

OUT

= 1000Ω 25°C 800 1500 V/V

L

= 500Ω 25°C 1200 V/V

L

= 150Ω 25°C 1000 V/V

L

MAX

All 0.3 nA/°C

T

MIN

, T

MAX

600 V/V

500 nA

VS = ±5V to ±15V 25°C 65 80 dB

T

VCM = ±12V, V

, T

MIN

= 0V 25°C 70 90 dB

OUT

MAX

T

, T

MIN

MAX

60 dB

70 dB

VS = ±15V 25°C ±14.0 V

VS = ±5V 25°C ±4.2 V

VS = +5V 25°C 4.2/0.1 V

VS = ±15V, R

VS = ±15V, R

VS = ±5V, R

VS = ±5V, R

VS = +5V, R

= 1000Ω 25°C ±13.4 ±13.6 V

L

= 500Ω 25°C ±12.0 ±13.4 V

L

= 500Ω 25°C ±3.4 ±3.8 V

L

= 150Ω 25°C ±3.2 V

L

= 500Ω 25°C 3.6/0.4 3.8/0.3 V

L

T

, T

MIN

MAX

T

, T

MIN

MAX

±13.1 V

3.5/0.5 V

25°C 40 75 mA

T

MIN

, T

MAX

35 mA

2

EL2044C

Low Power/Low Voltage 120MHz Unity-Gain Stable Operational Amplifier

DC Electrical Characteristics (Continued)

VS = ±15V, R

Parameter Description Condition Temp Min Typ Max Unit

I

S

R

IN

C

IN

R

OUT

PSOR Power-Supply

1. Measured from T

= 1000Ω, unless otherwise specified

L

Supply Current VS = ±15V, No Load 25°C 5.2 7 mA

T

, T

MIN

VS = ±5V, No Load 25°C 5.0 mA

Input Resistance Differential 25°C 150 kΩ

Common-Mode 25°C 15 MΩ

Input Capacitance AV = +1@ 10MHz 25°C 1.0 pF

Output Resistance A

Operating Range

to T

MAX

.

MIN

= +1 25°C 50 mΩ

V

Dual-Supply 25°C ±2.0 ±18.0 V

Single-Supply 25°C 2.5 36.0 V

MAX

7.6 mA

EL2044C

3

EL2044C

Low Power/Low Voltage 120MHz Unity-Gain Stable Operational Amplifier

EL2044C

Closed-Loop AC Electrical Characteristics

VS = ±15V, AV = +1, RL = 1000¾ unless otherwise specified

Parameter Description Condition Temp Min Typ Max Unit

BW -3 dB Bandwidth

GBWP Gain-Bandwidth Product VS = ±15V 25°C 60 MHz

PM Phase Margin R

SR Slew Rate

FPBW Full-Power Bandwidth

tr, t

f

OS Overshoot 0.1V Step 25°C 20 %

t

PD

t

s

dG Differential Gain

dP Differential Phase (Note 5) NTSC/PAL 25°C 0.15 °
eN Input Noise Voltage 10kHz 25°C 15.0 nV/√Hz
iN Input Noise Current 10kHz 25°C 1.50 pA/√Hz

CI STAB Load Capacitance Stability AV = +1 25°C Infinite pF

1. Slew rate is measured on rising edge.

2. For VS = ±15V, V

3. Video Performance measured at VS = ±15V, AV = +2 with 2 times normal video level across R

(V

= 0.4 VPP)

OUT

[1]

[2]

Rise Time, Fall Time 0.1V Step 25°C 3.0 ns

Propagation Delay 25°C 2.5 ns

Settling to +0.1%

(AV = +1)

Vpeak).

across a back-terminated 75Ω load. For other values of R

[3]

= 20VPP. For VS = ±5V, V

OUT

VS = ±15V, AV = +1 25°C 120 MHz

VS = ±15V, AV = -1 25°C 60 MHz

VS = ±15V, AV = +2 25°C 60 MHz

VS = ±15V, AV = +5 25°C 12 MHz

VS = ±15V, AV = +10 25°C 6 MHz

VS = ±5V, AV = +1 25°C 80 MHz

VS = ±5V 25°C 45 MHz

= 1 kΩ, C

L

VS = ±15V, R

VS = ±5V, R

VS = ±15V 25°C 4.0 5.2 MHz

VS = ±5V 25°C 12.7 MHz

VS = ±15V, 10V Step 25°C 80 ns

VS = ±5V, 5V Step 60 ns

NTSC/PAL 25°C 0.04 %

= 5V

OUT

= 10 pF 25°C 50 °

L

= 1000Ω 25°C 250 325 V/µs

L

= 500Ω 25°C 200 V/µs

L

. Full-power bandwidth is based on slew rate measurement using: FPBW = SR/(2π *

PP

= 150Ω. This corresponds to standard video levels

, see curves.

L

L

4