SGS Thomson Microelectronics LM2904D, LM2904, LM2904N Datasheet



LOW POWER DUAL OPERATIONAL AMPLIFIERS

.INTERNALLYFREQUENCYCOMPENSATED

.LARGEDC VOLTAGEGAIN: 100dB

.WIDEBANDWIDTH (unitygain): 1.1MHz

(temperaturecompensated)

.VERY LOW SUPPLY CURRENT/OP (500µA) -

ESSENTIALLY INDEPENDENT OF SUPPLY VOLTAGE

.LOW INPUTBIAS CURRENT : 20nA

(temperaturecompensated)

.LOW INPUTOFFSETCURRENT :2nA

.INPUT COMMON-MODE VOLTAGE RANGE

INCLUDES GROUND

.DIFFERENTIAL INPUT VOLTAGE RANGE

EQUALTO THE POWER SUPPLYVOLTAGE

.LARGE OUTPUT VOLTAGE SWING 0V TO

(V

–1.5V)

CC

N

DIP8

(PlasticPackage)

(Thin ShrinkSmallOutline Package)

(PlasticMicropackage)

P

TSSOP8

LM2904

D

SO8

DESCRIP TION

Thiscircuit consistsof twoindependent,high gain, internally frequency compensated which were designed specificallyfor automotiveand industrial controlsystem.It operatesfrom asinglepowersupply over a wide range of voltages. The low power supplydrainisindependentof the magnitudeof the powersupplyvoltage.

Applicationareas include transduceramplifiers, dc gainblocksandalltheconventionalop-ampcircuits whichnowcanbemoreeasilyimplementedinsingle powersupply systems.Forexample,thesecircuits can bedirectlysuppliedwith off the standard + 5V whichisusedinlogicsystemsandwilleasilyprovide the required interfaceelectronicswithout requiring any additionalpowersupply.

In thelinearmodethe input common-modevoltage range includesground and the output voltage can also swing to ground, even though operated from only a single powersupply voltage.

ORDER CODES

Part

Number

LM2904 -40

Example : LM2904D

PIN CONNECTIONS (top view)

1

2

3

45

1 -Output 1 2 -Inverting input 1 3 -Non-inverting input1

-

4-V

CC

Temperature

Range

o

C, +125oC •••

-

+

5 - Non-inverting input 2 6 - Invertinginput 2 7 - Ouput2 8-V

CC

Package

NDP

8

7

-

+

6

January 1999

1/12

LM2904

SCHEMATIC DIAGRAM ( 1/2 LM2904)

V

CC

Inverting

input

Non-inverting

input

6µA

Q2

Q3

Q8 Q9

µ

4

A

100

µ

A

Q5

C

Q4Q1

Q7

Q11

Q6

R

SC

Output

Q13

Q10

Q12

50

µ

A

GND

ABSOLUTE MAXIMUM RATINGS

Symbol Parameter LM2904 Unit

Supply Voltage +32 V Input Voltage –0.3 to +32 V

i

Differential Input Voltage +32 V Output Short-circuit Duration - (note 2) Power Dissipation 500 mW Input Current - (note 1) 50 mA Operating Free-air Temperature Range -40 to +125 Storage Temperature Range –65 to +150

2/12

V

CC

V

id

P

tot

I

in

T

oper

T

stg

o

C

o

C

LM2904

ELECTRICAL CHARACTERISTICS

+

= +5V, V

V

CC

Symbol Parameter Min. Typ. Max. Unit

V

io

I

io

I

ib

A

vd

SVR Supply Voltage Rejection Ratio (R

I

CC

V

icm

CMR Common-mode Rejection Ratio (R

I

source

I

sink

V

OPP

V

OH

V

OL

SR Slew Rate (V

GBP Gain Bandwidth Product

THD Total Harmonic Distortion

–

= Ground, VO= 1.4V, T

CC

=25oC (unless otherwise specified)

amb

Input OffsetVoltage - (note 3)

T T

amb min.

=25oC ≤ T

amb

≤ T

max

.

27

Input OffsetCurrent

T T

amb min.

=25oC ≤ T

amb

≤ T

max

.

230

Input Bias Current - (note 4)

T T

amb min.

=25oC ≤ T

amb

≤ T

max

.

20 150

Large Signal Voltage Gain

= +15V, RL=2kΩ,VO= 1.4V to 11.4V)

(V

CC

=25oC

T

amb

≤ T

T

min.

+

= 5 to 30V)

=25oC

T

amb

≤ T

T

min.

amb

≤ T

max

.

= 10kΩ)

S

.

50 25

65 65

100

Supply Current, allAmp, no Load

V

CC

V

CC

= +5V, T = +30V, T

min.

≤ T

amb

≤ T

max

.

0.7 1.2

Input Common Mode Voltage Range

= +30V) - (note 6)

(V

CC

T T

amb min

amb min.

=25oC

. ≤ T

=25oC ≤ T

amb

≤ T

max

.

= 10kΩ)

S

.

70 60

0 0

85

Output Source Current

= +15V, Vo= 2V, Vid= +1V) 20 40 60

(V

CC

Output Current Sink (Vid= -1V)

= +15V, VO=2V

V

CC

= +15V, VO= +0.2V

V

CC

10 12

20 50

Output Voltage Swing (RL=2kΩ)

26 26 27 27

0 0

27 28

=25oC

T

amb

≤ T

T

min.

amb

max

.

High Level Output Voltage (V

=25oCR

T

amb

T T T

min amb min.

. ≤ T

≤ T

max

.

amb

=25oCR ≤ T

amb

+

= 30V)

CC

=2kΩ

L

= 10kΩ

L

Low Level Output Voltage(RL= 10kΩ)

=25oC

T

amb

. ≤ T

T

min

100pF, unity gain) 0.3 0.6

= 30V, f = 100kHz,

(V

CC

= 10mV, RL=2kΩ,CL= 100pF) 0.7 1.1

V

in

(f = 1kHz, A

= 100pF, VO=2PP)

C

L

≤ T

amb

max.

= 15V, VI= 0.5 to 3V, RL=2kΩ,CL=

CC

= 20dB, RL=2kΩ,VCC= 30V,

v

520

0.02

9

40

200

2

+

V

–1.5

CC

+

–2

V

CC

+

V

–1.5

CC

+

–2

V

CC

20

mV

nA

V/mV

dB

mA

V

dB

mA

µA

V

mV

V/µs MHz

%

3/12

LM2904

ELECTRICAL CHARACTERISTICS (continued)

Symbol Parameter Min. Typ. Max Unit

DV

DI

V

O1/VO2

Notes : 1. This input current only exist when the voltage at any of the input leads is driven negative. It is due to the collec-

OPEN LOOP FREQUENCY RESPONSE

Input Offset Voltage Drift 7 30 µA/oC

io

Input Offset Current Drift 10 300 pA/oC

io

Channel Separation (note 5)

1kHz ≤ f ≤ 20kHz 120

tor-base junction of the input PNP transistor becoming forward biased and thereby acting as input diode clamps. In addition to this diode action, there is also NPN parasitic action on the IC chip. This transistor action can cause the output voltages of the Op-amps to go to the V duration that an input is driven negative. This is not destructive and normal output will set up again for input voltage higher than –0.3V.

2. Short-circuits from the output to V approximatively 40mA independent of the magnitude of V short-circuits on all amplifiers.

= 1.4V, RS=0Ω,5V<V

3. V

O

CC

can cause excessive heating if V

CC

+

< 30V, 0 < Vic< V

4. The direction of the input current is out of the IC. This current is essentially constant, independent of the state of the output so no loading change exists on the input lines.

5. Due to the proximity of external components insure that coupling is not originating via stray capacitance between these external parts. This typically can be detected as this type of capacitance increases at higher frequences.

6. The input common-mode voltage of either input signal voltage should not be allowed to go negative by more than

0.3V. The upper end of the common-mode voltage range is V But either or both inputs can go to +32V without damage.

(NOTE 3)

140

120

100

0.1µF

V

I

VCC/2

80

VCC= 30V &

60

-55 C

T

-

+

amb

10M

Ω

V

CC

+125 C

V

O

voltage level (or to ground for a large overdrive) for the time

CC

+

> 15V. The maximum output current is

+

– 1.5V.

CC

. Destructive dissipation can result from simultaneous

CC

+

– 1.5V.

CC

LARGE SIGNALFREQUENCYRES PONSE

20

Ω

1k

15

V

I

+7V

10

Ω

100k

+15V

-

+

VO

Ω

2k

dB

40

VOLTAGE GAIN (dB)

20

VCC=+10to+15V&

T

amb

+125 C

-55 C

0

1.0 10 100 1k 10k 100k 1M 10M

FREQUENCY(Hz)

VOLAGE FOLLOWER PULSE RESPONSE

4

3

RL 2 k VCC = +15V

2

OUTPUT

1

VOLTAGE (V)

0

3

2

1

INPUT

010203040

VOLTAGE (V)

TIME (µs)

Ω

5

OUTPUT SWING (Vpp)

0

1k 10k 100k 1M

FREQUENCY (Hz)

OUTPUT CHARACTERISTICS

10

1

0.1

OUTPUT VOLTAGE (V)

0.01

0,001 0,01 0,1 1 10 100

VCC = +5V VCC = +15V VCC = +30V

vcc/2

T

-

+

amb

v

cc

OUTPUT SINK CURRENT (mA)

=+25 C

I

O

V

O

4/12