Datasheet LM2904D-ST Specification

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Page 1

SO-8

(Plastic micropackage)

LM2904, LM2904A

Low-power dual operational amplifier

Datasheet - production data

 Wide bandwidth (unity gain): 1.1 MHz

(temperature compensated)

 Very low supply current/amplifier, essentially

independent of supply voltage

 Low input bias current: 20 nA (temperature

compensated)

 Low input offset current: 2 nA  Input common-mode voltage range includes

negative rail

 Differential input voltage range equal to the

power supply voltage

 Large output voltage swing 0 V to (V

1 Schematic diagram

Figure 1. Schematic diagram (1/2 LM2904)

Inverting

input

Non-inverting

input

Q8 Q9

6MA

Q4Q1

Q10

Q11

100

Output

Q13

Q12

50 mA

GND

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Page 4

Package pin connections LM2904, LM2904A

2 Package pin connections

Figure 2. DFN8 pin connections (top view)

287

,1

,1

9&&











9&&



287



,1





,1

1. The exposed pad of the DFN8 2x2 can be connected to VCC- or left floating.

Figure 3. MiniSO8, TSSOP8 and SO8 package pin connections (top view)

287

,1

,1

9&&

287

,1

9&&

4/24 DocID2471 Rev 15

,1

Page 5

LM2904, LM2904A Absolute maximum ratings and operating conditions

3 Absolute maximum ratings and operating conditions

Table 1. Absolute maximum ratings

Symbol Parameter Value Unit

Supply voltage

Differential input voltage

Input voltage -0.3 to 32 V

Output short-circuit duration

Input current

oper

Operating free-air temperature range -40 to +125 °C

Storage temperature range -65 to +150 °C

stg

Maximum junction temperature 150 °C

Thermal resistance junction to ambient SO-8

thja

TSSOP8 MiniSO-8 DFN8 2x2

Thermal resistance junction to case

thjc

SO-8 TSSOP8

MiniSO-8

HBM: human body model

ESD

MM: machine model

CDM: charged device model

1. All voltage values, except differential voltage are with respect to network ground terminal.

2. Differential voltages are the non-inverting input terminal with respect to the inverting input terminal.

3. Short-circuits from the output to V approximately 40 mA, independent of the magnitude of VCC. Destructive dissipation can result from simultaneous short-circuits on all amplifiers.

4. This input current only exists when the voltage at any of the input leads is driven negative. It is due to the collector-base junction of the input PNP transistor becoming forward-biased and thereby acting as input diode clamp. In addition to this diode action, there is NPN parasitic action on the IC chip. This transistor action can cause the output voltages of the Opamps to go to the VCC voltage level (or to ground for a large overdrive) for the time during which an input is driven negative. This is not destructive and normal output is restored for input voltages above -0.3 V.

5. The junction base/substrate of the input PNP transistor polarized in reverse must be protected by a resistor in series with the inputs to limit the input current to 400 μA max (R = (Vin-32 V)/400 μA).

6. Short-circuits can cause excessive heating and destructive dissipation. Values are typical.

7. Human body model: a 100 pF capacitor is charged to the specified voltage, then discharged through a 1.5 kW resistor between two pins of the device. This is done for all couples of connected pin combinations while the other pins are floating.

8. Machine model: a 200 pF capacitor is charged to the specified voltage, then discharged directly between two pins of the device with no external series resistor (internal resistor < 5 W). This is done for all couples of connected pin combinations while the other pins are floating.

9. Charged device model: all pins and the package are charged together to the specified voltage and then discharged directly to the ground through only one pin. This is done for all pins.

(1)

(2)

(3)

(4)

: Vin driven negative

(5)

: Vin driven positive above AMR value

(6)

(7)

(8)

(9)

can cause excessive heating if V

±16 or 32 V

±32 V

Infinite s

5 mA in DC or 50 mA in AC

(duty cycle = 10%, T = 1s)

0.4

125 120 190

40 37 39

300 V

200 V

1.5 kV

> 15 V. The maximum output current is

cc+

°C/W

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Page 6

Absolute maximum ratings and operating conditions LM2904, LM2904A

Table 2. Operating conditions

Symbol Parameter Value Unit

oper

Supply voltage 3 to 30 V

Common mode input voltage range 0 to V

icm

- 1.5 V

CC+

Operating free-air temperature range -40 to +125 °C

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LM2904, LM2904A Electrical characteristics

4 Electrical characteristics

Table 3. V

CC+

= 5 V, V

= ground, VO = 1.4 V, T

CC-

amb

= 25° C

(unless otherwise specified)

Symbol Parameter Min. Typ. Max. Unit

CC+

= +5 V

CC+

 T

(1)

LM2904

max

LM2904A

max

(2)

max

= +5 V

, V

max

= +15 V

max

= 1.4 V to 11.4 V

= +30 V

CC+

10 k)

CC+

10 k)

= + 30 V)

= +30 V)

(3)

2 1

7 2

9 4

230

20 150

200

100

V/mV

100

0.7 1.2

0 0

CC+

-1.5

-2

20 40 60 mA

10 12

20 50

mA μA

26 26

27 27

Input offset voltage

= 25° C LM2904

amb

= 25° C LM2904A

amb

 T

min

amb

 T

min

amb

 T  T

/T Input offset voltage drift 7 30 μV/°C

V

Input offset current

T T

amb

min

= 25° C

 T

amb

 T

I

T Input offset current drift 10 300 pA/°C

Input bias current

= 25° C

amb

 T

min

Large signal voltage gain V

CC+

amb

 T

min

 T

amb

= +15 V, RL = 2 k, V

= 25° C

 T

amb

Supply voltage rejection ratio (R

SVR

T T

amb

min

= 25° C

 T

amb

 T

Supply current, all amp, no load

T T

amb

min

= 25°C, V

 T

amb

 T

Input common mode voltage range (V

icm

T T

amb

min

= 25° C

 T

amb

 T

Common-mode rejection ratio (R

CMR

source

= 25° C

amb

min

 T

amb

 T

Output short-circuit current V

= +15 V, Vo = +2 V, Vid = +1 V

CC+

Output sink current

sink

= 2 V, V

= +0.2 V, V

CC+

High level output voltage (V T

= +25° C, RL 2 k

amb

 T

T T

min

amb

min

amb

= +25° C, RL 10 k

 T

amb

 T

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Electrical characteristics LM2904, LM2904A

Table 3. V

CC+

= 5 V, V

= ground, VO = 1.4 V, T

CC-

amb

= 25° C

(unless otherwise specified) (continued)

Symbol Parameter Min. Typ. Max. Unit

Low level output voltage (RL 10 k)

GBP

THD

O1/VO2

1. VO = 1.4 V, RS = 0 W, 5 V < V

2. The direction of the input current is out of the IC. This current is essentially constant, independent of the state of the output, so there is no change in the loading charge on the input lines.

3. The input common-mode voltage of either input signal voltage should not be allowed to go negative by more than 0.3 V. The upper end of the common-mode voltage range is V damage.

4. Due to the proximity of external components, ensure that the stray capacitance does not cause coupling between these external parts. This can typically be detected at higher frequencies because this type of capacitance increases.

T T

amb

min

= +25° C

 T

amb

 T

max

Slew rate V

= 15 V, Vin = 0.5 to 3 V, RL 2 k, CL =100 pF,

CC+

unity gain T

min

 T

amb

 T

max

Gain bandwidth product f = 100 kHz

= 30 V, Vin = 10 mV, RL 2 k, CL = 100 pF

CC+

Total harmonic distortion f = 1 kHz, A

= 100 pF, V

Equivalent input noise voltage

f = 1 kHz, R

= 20 dB, RL = 2 k, Vo = 2 Vpp,

= 30 V

CC+

= 100 , V

Channel separation 1 kHz  f  20 kHz

CC+

= 30 V

CC+

(4)

< 30 V, 0 V < Vic < V

520

0.3

0.6

0.2

0.7 1.1 MHz

0.02 %

55 nV/

120 dB

- 1.5 V.

CC+

–1.5 V, but either or both inputs can go to +32 V without

CC+

Hz

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LM2904, LM2904A Electrical characteristics

VOLAGE FOLLOWER PULSE RESPONSE

Figure 4. Open-loop frequency response Figure 5. Large signal frequency response

140 120 100

0.1μF

80 60 40

VOLTAGE GAIN (dB)

VCC= +10 to + 15V &

amb

+125°C

-55°C

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

FREQUENCY (Hz)

10M

VCC/2

VCC= 30V &

-55°C

amb

+125°C

100k

+7V

+15V

OUTPUT SWING (Vpp)

1k 10k 100k 1M

FREQUENCY (Hz)

Figure 6. Voltage follower large signal response Figure 7. Current sinking output characteristics

OUTPUT CHARACTERISTICS

0.1

0.01

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

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

vcc/2

amb

=+25°C

OUTPUT SINK CURRENT (mA)

OUTPUT

VOLTAGE (V)

INPUT

VOLTAGE (V)

RL 2 k

VCC = +15V

2 1 0 3 2 1

010203040

(

)

E(V)

VOLTAG

OUTPUT

Figure 8. Voltage follower small signal response Figure 9. Current sourcing output

characteristics

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Page 10

Electrical characteristics LM2904, LM2904A

Figure 10. Input current versus temperature Figure 11. Current limiting

Figure 12. Input voltage range Figure 13. Supply current

Figure 14. Voltage gain Figure 15. Input current versus supply voltage

160

R = 20k

120

R=2k

VOLTAGE GAIN (dB)

010203040

POSITIVE SUPPLY VOLTAGE (V)

10/24 DocID2471 Rev 15

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LM2904, LM2904A Electrical characteristics

Phase Margin at Vcc=15V and Vicm=7.5V Vs. Iout and Capacitive load value

Figure 16. Gain bandwidth product Figure 17. Power supply rejection ratio

Figure 18. Common-mode rejection ratio Figure 19. Phase margin vs capacitive load

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Electrical characteristics LM2904, LM2904A

4.1 Typical single-supply applications

Figure 20. AC coupled inverting amplifier Figure 21. AC coupled non-inverting amplifier

100 kΩ

10 k

1/2

LM2904

100 kΩ

6.2 k

100 kΩ

A=-

(as shown A = -10)

10 k

0.1 μF

100 k

1 M

1/2

LM2904

6.2 k

100 k

A=1+

(as shown A = 11)

10 k

Figure 22. Non-inverting DC gain Figure 23. DC summing amplifier

100 k

LM2904

1/2

100 k

10 k

=1+

1/2

LM2904

+5V

(As shown = 101)

100 k

eo = e1 + e2 - e3 - e4 where (e1 + e2) (e3 + e4) to keep eo 0V≥≥

10 k

)

1 M

(mV)

Figure 24. High input Z, DC differential amplifier Figure 25. Using symmetrical amplifiers to

reduce input current

100 k

+V2

If R1 = R5 and R3 = R4 = R6 = R7 eo = [ 1 + ] (e2 - e1)

2R1 R2

As shown eo = 101 (e2 - e1)

100 k

1/2

LM2904

1/2

LM2904

1.5 M

2N 929

0.001 μF

3 M

LM2904

100 k

1/2

LM2904

100 k

1/2

Input current compensation

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LM2904, LM2904A Electrical characteristics

Table 4. Low drift peak detector Table 5. Active bandpass filter

100 k

1/2

LM2904

10 M

330 pF

LM2904

330 pF

470 k

1/2

470 k

100 k

1/2

LM2904

100 k

1/2

LM2904

2N 929

0.001 μF

3 M

1/2

LM2904

1/2

LM2904

1 μF

1 M

Input current compensation

100 k

Fo = 1 kHz Q = 50 Av = 100 (40 dB)

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Macromodel LM2904, LM2904A

5 Macromodel

An accurate macromodel of the LM2904 is available on STMicroelectronics’ web site at

www.st.com. This model is a trade-off between accuracy and complexity (that is, time

simulation) of the LM2904 operational amplifier. It emulates the nominal performances of a typical device within the specified operating conditions mentioned in the datasheet. It also helps to validate a design approach and to select the right operational amplifier, but it does not replace on-board measurements.

14/24 DocID2471 Rev 15

Page 15

LM2904, LM2904A Package information

6 Package information

In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK® packages, depending on their level of environmental compliance. ECOPACK® specifications, grade definitions and product status are available at: www.st.com. ECOPACK® is an ST trademark.

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Page 16

Package information LM2904, LM2904A

6.1 SO-8 package information

Figure 26. SO-8 package mechanical drawing

Table 6. SO-8 package mechanical data

Dimensions

Ref.

Min. Typ. Max. Min. Typ. Max.

A 1.75 0.069

A1 0.10 0.25 0.004 0.010

A2 1.25 0.049

b 0.28 0.48 0.011 0.019

c 0.17 0.23 0.007 0.010

D 4.80 4.90 5.00 0.189 0.193 0.197

E 5.80 6.00 6.20 0.228 0.236 0.244

E1 3.80 3.90 4.00 0.150 0.154 0.157

e 1.27 0.050

h 0.25 0.50 0.010 0.020

L 0.40 1.27 0.016 0.050

L1 1.04 0.040

k1°8°1°8°

Millimeters Inches

ccc 0.10 0.004

16/24 DocID2471 Rev 15

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LM2904, LM2904A Package information

6.2 DFN8 2 x 2 mm package mechanical data

Figure 27. DFN8 2 x 2 mm package mechanical drawing

Table 7. DFN8 2 x 2 mm package mechanical data (pitch 0.5 mm)

Dimensions

Ref.

Millimeters Inches

Min. Typ. Max. Min. Typ. Max.

A 0.51 0.55 0.60 0.020 0.022 0.024

A1 0.05 0.002

A3 0.15 0.006

b 0.18 0.25 0.30 0.007 0.010 0.012

D 1.85 2.00 2.15 0.073 0.079 0.085

D2 1.45 1.60 1.70 0.057 0.063 0.067

E 1.85 2.00 2.15 0.073 0.079 0.085

E2 0.75 0.90 1.00 0.030 0.035 0.039

e 0.50 0.020

L 0.50 0.020

ddd 0.08 0.003

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Page 18

Package information LM2904, LM2904A

Figure 28. DFN8 2 x 2 mm footprint recommendation

1.60 mm

0.45 mm

2.80 mm

0.75 mm

0.30 mm

0.50 mm

18/24 DocID2471 Rev 15

Page 19

LM2904, LM2904A Package information

6.3 TSSOP8 package information

Figure 29. TSSOP8 package mechanical drawing

Figure 30. TSSOP8 package mechanical data

Dimensions

Ref.

Millimeters Inches

Min. Typ. Max. Min. Typ. Max.

A 1.20 0.047

A1 0.05 0.15 0.002 0.006

A2 0.80 1.00 1.05 0.031 0.039 0.041

b 0.19 0.30 0.007 0.012

c 0.09 0.20 0.004 0.008

D 2.90 3.00 3.10 0.114 0.118 0.122

E 6.20 6.40 6.60 0.244 0.252 0.260

E1 4.30 4.40 4.50 0.169 0.173 0.177

e 0.65 0.0256

k0°8°0°8°

L 0.45 0.60 0.75 0.018 0.024 0.030

L1 1 0.039

aaa 0.10 0.004

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Page 20

Package information LM2904, LM2904A

6.4 MiniSO-8 package information

Figure 31. MiniSO-8 package mechanical drawing

Ref.

A 1.1 0.043

A1 0 0.15 0 0.006

A2 0.75 0.85 0.95 0.030 0.033 0.037

b 0.22 0.40 0.009 0.016

c 0.08 0.23 0.003 0.009

D 2.80 3.00 3.20 0.11 0.118 0.126

E 4.65 4.90 5.15 0.183 0.193 0.203

E1 2.80 3.00 3.10 0.11 0.118 0.122

e 0.65 0.026

L 0.40 0.60 0.80 0.016 0.024 0.031

L1 0.95 0.037

L2 0.25 0.010

k0°8°0°8°

Table 8. MiniSO-8 package mechanical data

Dimensions

Millimeters Inches

Min. Typ. Max. Min. Typ. Max.

ccc 0.10 0.004

20/24 DocID2471 Rev 15

Page 21

LM2904, LM2904A Ordering information

7 Ordering information

Table 9. Order codes

Order code Temperature range Package Packing Marking

LM2904D/DT

SO-8

Tube or

tape & reel

2904

LM2904PT

(thin shrink outline package)

TSSOP8

Tape & reel

LM2904ST MiniSO-8 Tape & reel K403

LM2904Q2T DFN8 2 x 2 Tape & reel K1Y

LM2904YDT

LM2904AYDT

LM2904YPT

LM2904AYPT

LM2904YST

1. Qualified and characterized according to AEC Q100 and Q003 or equivalent, advanced screening according to AEC Q001 & Q 002 or equivalent.

2. Qualification and characterization according to AEC Q100 and Q003 or equivalent, advanced screening according to AEC Q001 & Q 002 or equivalent are on-going.

(1)

(2)

(1)

-40° C to +125° C

SO-8

(automotive grade level)

TSSOP8

(automotive grade level)

MiniSO-8

(automotive grade level)

Tape & reel

2904Y

2904AY

2904Y

Tape & reel

904AY

Tape & reel K409

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Page 22

Revision history LM2904, LM2904A

8 Revision history

Table 10. Document revision history

Date Revision Changes

02-Jan-2002 1 Initial release.

20-Jun-2005 2

PPAP references inserted in the datasheet, see Table 9 on page 21. ESD protection inserted in Table 1 on page 5.

10-Oct-2005 3 PPAP part numbers added in table Table 9 on page 21.

Pin connections identification added on cover page figure.

12-Dec-2005 4

Thermal resistance junction to case information added see Table 1 on

page 5.

01-Feb-2006 5 Maximum junction temperature parameter added in Table 1 on page 5.

02-May-2006 6 Minimum slew rate parameter in temperature Table 3 on page 7.

, V

13-Jul-2006 7

Modified ESD values and added explanation on V

page 5. Added macromodel information.

in Table 1 on

Modified ESD/HBM values in Table 1 on page 5.

28-Feb-2007 8

Updated MiniSO-8 package information.

Added note relative to automotive grade level part numbers in Table 9 on

page 21.

Power dissipation value corrected in Table 1: Absolute maximum ratings.

Table 2: Operating conditions added.

18-Jun-2007 9

Equivalent input noise voltage parameter added in Table 3. Electrical characteristics curves updated. Figure 19: Phase margin vs

capacitive load added. Section 6: Package information updated.

Removed power dissipation parameter from Table 1: Absolute maximum

ratings.

18-Dec-2007 10

Removed V

from electrical characteristics in Table 3.

opp

Corrected MiniSO-8 package mechanical data in Section 6.4: MiniSO-8

package information.

Added table of contents.

08-Apr-2008 11

Corrected the scale of Figure 7 (mA not μA). Corrected SO-8 package information.

Added input current information in Table 1: Absolute maximum ratings.

02-Jun-2009 12

Added L1 parameters in Table 6: SO-8 package mechanical data. Added new order codes, LM2904AYD/DT, LM2904AYPT and LM2904AYST

in Table 9: Order codes.

Added LM2904A on cover page.

13-Apr-2010 13

Corrected footnote (5) in Table 1: Absolute maximum ratings. Removed order code LM2904AYST from Table 9: Order codes.

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Page 23

LM2904, LM2904A Revision history

Table 10. Document revision history (continued)

Date Revision Changes

Removed macromodel from Chapter 5 (now available on www.st.com).

Added DFN8 2 x 2 mm package information in Chapter 6 and related order

24-Jan-2012 14

24-Jan-2014 15

codes in Chapter 7. Removed LM2904YD and LM2904AYD order codes from Table 9. Changed note for LM2904YST order code in Table 9.

Updated: marking info for LM2904AYPT, package silhouette drawings in the cover page, V

/T and IioT symbols in Table 3 on page 7

Added: ESD info in Features section and Section 2: Package pin

connections

Removed: LM2904N from Table 9: Order codes.

DocID2471 Rev 15 23/24

Page 24

LM2904, LM2904A

Please Read Carefully:

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