National Semiconductor LMH6624, LMH6626 Technical data

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LMH6624/LMH6626 Single/Dual Ultra Low Noise Wideband Operational Amplifier

May 2003

General Description

The LMH6624/LMH6626 offer wide bandwidth (1.5GHz for single, 1.3GHz for dual) with very low input noise (0.92nV/

, 2.3pA/ ) and ultra low dc errors (100µV VOS,

±

0.1µV/˚C drift) providing very precise operational amplifiers with wide dynamic range. This enables the user to achieve closed-loop gains of greater than 10, in both inverting and non-inverting configurations.

The LMH6624 (single) and LMH6626’s (dual) traditional voltage feedback topology provide the following benefits: balanced inputs, low offset voltage and offset current, very low offset drift, 81dB open loop gain, 95dB common mode rejection ratio, and 88dB power supply rejection ratio.

±

The LMH6624/LMH6626 operate from dual supply mode and from +5V to +12V in single supply configuration.

LMH6624 is offered in SOT23-5 and SOIC-8 packages. The LMH6626 is offered in SOIC-8 and MSOP-8 packages.

2.5V to±6V in

Connection Diagrams

Features

VS=±6V, TA= 25˚C, AV= 20, (Typical values unless specified)

n Gain bandwidth (LMH6624) 1.5GHz n Input voltage noise 0.92nV/ n Input offset voltage (limit over temp) 700uV n Slew rate 350V/µs n Slew rate (A

@

n HD2

@

n HD3 n Supply voltage range (dual supply) n Supply voltage range (single supply) +5V to +12V n Improved replacement for the CLC425 (LMH6624) n Stable for closed loop |A

= 10) 400V/µs

V

f = 10MHz, RL= 100Ω −63dBc f = 10MHz, RL= 100Ω −80dBc

±

2.5V to±6V

| ≥ 10

V

Applications

n Instrumentation sense amplifiers n Ultrasound pre-amps n Magnetic tape & disk pre-amps n Wide band active filters n Professional Audio Systems n Opto-electronics n Medical diagnostic systems

5-Pin SOT23 8−Pin SOIC 8−Pin SOIC/MSOP

Top View

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Top View

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Top View

20058961

Absolute Maximum Ratings (Note 1)

If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications.

ESD Tolerance

Wave Soldering (10 sec.) 260˚C

Storage Temperature Range −65˚C to +150˚C

Junction Temperature (Note 3), (Note 4) +150˚C

Operating Ratings (Note 1)

Human Body Model 2000V (Note 2)

LMH6624/LMH6626

Machine Model 200V (Note 9)

Differential

V

IN

Supply Voltage (V

+-V−

) 13.2V

Voltage at Input pins V

Soldering Information

Infrared or Convection (20 sec.) 235˚C

±

2.5V Electrical Characteristics

±

+

+0.5V, V−−0.5V

1.2V

Operating Temperature Range (Note 3), (Note 4) −40˚C to +125˚C

Package Thermal Resistance (θ

)(Note 4)

JA

SOIC-8 166˚C/W

SOT23–5 265˚C/W

MSOP-8 235˚C/W

Unless otherwise specified, all limits guaranteed at TA= 25˚C, V+= 2.5V, V−= −2.5V, VCM= 0V, AV= +20, RF= 500Ω,RL= 100Ω. Boldface limits apply at the temperature extremes. See (Note 12).

Symbol Parameter Conditions Min

(Note 6)

Typ

(Note 5)

Max

(Note 6)

Dynamic Performance

f

CL

SR Slew Rate(Note 8) V

t

r

t

f

t

s

−3dB BW VO= 400mVPP(LMH6624) 90

V

= 400mVPP(LMH6626) 80

O

=2VPP,AV= +20 (LMH6624) 300

O

V

=2VPP,AV= +20 (LMH6626) 290

O

V

=2VPP,AV= +10 (LMH6624) 360

O

V

=2VPP,AV= +10 (LMH6626) 340

O

Rise Time VO= 400mV Step, 10% to 90% 4.1 ns

Fall Time VO= 400mV Step, 10% to 90% 4.1 ns

Settling Time 0.1% VO=2VPP(Step) 20 ns

Distortion and Noise Response

e

n

Input Referred Voltage Noise f = 1MHz (LMH6624) 0.92

f = 1MHz (LMH6626) 1.0

i

n

Input Referred Current Noise f = 1MHz (LMH6624) 2.3

f = 1MHz (LMH6626) 1.8

HD2 2

HD3 3

nd

Harmonic Distortion fC= 10MHz, VO=1VPP,RL100Ω −60 dBc

rd

Harmonic Distortion fC= 10MHz, VO=1VPP,RL100Ω −76 dBc

Input Characteristics

V

OS

I

OS

I

B

Input Offset Voltage VCM= 0V −0.75

−0.95

Average Drift (Note 7) VCM=0V

Input Offset Current VCM= 0V −1.5

−2.0

Average Drift (Note 7) V

= 0V 2 nA/˚C

CM

−0.25 +0.75

+0.95

±

0.25 µV/˚C

−0.05 +1.5

+2.0

Input Bias Current VCM= 0V 13 +20

+25

Average Drift (Note 7) VCM= 0V 12 nA/˚C

R

IN

Input Resistance (Note 10) Common Mode 6.6 MΩ

Differential Mode 4.6 kΩ

C

IN

Input Capacitance (Note 10) Common Mode 0.9 pF

Differential Mode 2.0

CMRR Common Mode Rejection

Ratio

Input Referred,

V

= −0.5 to +1.9V

CM

= −0.5 to +1.75V

V

CM

87

85

90

Units

MHz

V/µs

nV/

pA/

mV

µA

dB

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±

2.5V Electrical Characteristics (Continued)

Unless otherwise specified, all limits guaranteed at TA= 25˚C, V+= 2.5V, V−= −2.5V, VCM= 0V, AV= +20, RF= 500Ω,RL= 100Ω. Boldface limits apply at the temperature extremes. See (Note 12).

Symbol Parameter Conditions Min

(Note 6)

Typ

(Note 5)

Max

(Note 6)

Transfer Characteristics

A

VOL

Large Signal Voltage Gain (LMH6624)

= 100Ω,VO= −1V to +1V

R

L

(LMH6626)

= 100Ω,VO= −1V to +1V

R

L

X

t

Crosstalk Rejection f = 1MHz (LMH6626) −75 dB

75

70

72

67

79

Output Characteristics

V

R

I

O

SC

OUT

Output Swing RL= 100Ω

No Load

±

1.1

1.0

1.4

1.25

Output Impedance f ≤ 100KHz 10 mΩ

Output Short Circuit Current (LMH6624)

Sourcing to Ground

= 200mV (Note 3), (Note 11)

∆V

IN

(LMH6624) Sinking to Ground

= −200mV (Note 3), (Note 11)

∆V

IN

(LMH6626) Sourcing to Ground

= 200mV (Note 3),(Note 11)

∆V

IN

(LMH6626) Sinking to Ground

= −200mV (Note 3),(Note 11)

∆V

IN

90

75

90

75

60

50

60

50

Output Current (LMH6624)

Sourcing, V Sinking, V

O

= −0.8V

O

= +0.8V

(LMH6626) Sourcing, V Sinking, V

O

= −0.8V

O

= +0.8V

±

145

120

100

75

1.5

1.7

Power Supply

PSRR Power Supply Rejection Ratio V

=±2.0V to±3.0V 82

S

90 dB

80

I

S

Supply Current (per channel) No Load 11.4 16

18

LMH6624/LMH6626

Units

dB

V

mA

±

6V Electrical Characteristics

Unless otherwise specified, all limits guaranteed at TA= 25˚C, V+= 6V, V−= −6V, VCM= 0V, AV= +20, RF= 500Ω,RL= 100Ω. Boldface limits apply at the temperature extremes. See (Note 12).

Symbol Parameter Conditions Min

(Note 6)

Typ

(Note 5)

Max

(Note 6)

Dynamic Performance

f

CL

SR Slew Rate (Note 8) V

t

r

−3dB BW VO= 400mVPP(LMH6624) 95

V

= 400mVPP(LMH6626) 85

O

=2VPP,AV= +20 (LMH6624) 350

O

V

=2VPP,AV= +20 (LMH6626) 320

O

V

=2VPP,AV= +10 (LMH6624) 400

O

V

=2VPP,AV= +10 (LMH6626) 360

O

Rise Time VO= 400mV Step, 10% to 90% 3.7 ns

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Units

MHz

V/µs

±

6V Electrical Characteristics (Continued)

Unless otherwise specified, all limits guaranteed at TA= 25˚C, V+= 6V, V−= −6V, VCM= 0V, AV= +20, RF= 500Ω,RL= 100Ω. Boldface limits apply at the temperature extremes. See (Note 12).

Symbol Parameter Conditions Min

t

f

LMH6624/LMH6626

t

s

Fall Time VO= 400mV Step, 10% to 90% 3.7 ns

Settling Time 0.1% VO=2VPP(Step) 18 ns

(Note 6)

Typ

(Note 5)

(Note 6)

Distortion and Noise Response

e

n

Input Referred Voltage Noise f = 1MHz (LMH6624) 0.92

f = 1MHz (LMH6626) 1.0

i

n

Input Referred Current Noise f = 1MHz (LMH6624) 2.3

f = 1MHz (LMH6626) 1.8

HD2 2

HD3 3

nd

Harmonic Distortion fC= 10MHz, VO=1VPP,RL100Ω −63 dBc

rd

Harmonic Distortion fC= 10MHz, VO=1VPP,RL100Ω −80 dBc

Input Characteristics

V

OS

Input Offset Voltage VCM= 0V −0.5

±

0.10 +0.5

−0.7

Average Drift (Note 7) V

I

OS

Input Offset Current Average Drift (Note 7)

I

B

Input Bias Current VCM= 0V 13 +20

=0V

CM

(LMH6624)

=0V

V

CM

(LMH6626)

=0V

V

CM

V

= 0V 0.7 nA/˚C

CM

−1.1

−2.5

−2.0

−2.5

±

0.2 µV/˚C

0.05 1.1

0.1 2.0

Average Drift (Note 7) VCM= 0V 12 nA/˚C

R

IN

Input Resistance (Note 10) Common Mode 6.6 MΩ

Differential Mode 4.6 kΩ

C

IN

Input Capacitance (Note 10) Common Mode 0.9

Differential Mode 2.0

CMRR Common Mode Rejection

Ratio

Input Referred,

V

= −4.5 to +5.25V

CM

= −4.5 to +5.0V

V

CM

90

87

95

Transfer Characteristics

A

VOL

Large Signal Voltage Gain (LMH6624)

= 100Ω,VO= −3V to +3V

R

L

(LMH6626) RL= 100Ω,VO= −3V to +3V

X

t

Crosstalk Rejection f = 1MHz (LMH6626) −75 dB

77

72

74

70

81

80

Output Characteristics

V

O

Output Swing (LMH6624)

= 100Ω

R

L

(LMH6624) No Load

(LMH6626)

= 100Ω

R

L

(LMH6626) No Load

R

O

Output Impedance f ≤ 100KHz 10 mΩ

±

4.4

4.3

4.8

4.65

4.3

4.2

4.8

4.65

±

4.9

±

5.2

±

4.8

±

5.2

Max

+0.7

2.5

+25

Units

nV/

pA/

mV

µA

pF

dB

V

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±

6V Electrical Characteristics (Continued)

Unless otherwise specified, all limits guaranteed at TA= 25˚C, V+= 6V, V−= −6V, VCM= 0V, AV= +20, RF= 500Ω,RL= 100Ω. Boldface limits apply at the temperature extremes. See (Note 12).

Symbol Parameter Conditions Min

(Note 6)

I

SC

Output Short Circuit Current (LMH6624)

Sourcing to Ground

= 200mV (Note 3), (Note 11)

∆V

IN

(LMH6624) Sinking to Ground

= −200mV (Note 3), (Note 11)

∆V

IN

(LMH6626) Sourcing to Ground

= 200mV (Note 3), (Note 11)

∆V

IN

(LMH6626) Sinking to Ground

= −200mV (Note 3), (Note 11)

∆V

IN

I

OUT

Output Current (LMH6624)

Sourcing, V Sinking, V

O

= −4.3V

O

= +4.3V

(LMH6626) Sourcing, V Sinking, V

O

= −4.3V

O

= +4.3V

100

85

100

85

65

55

65

55

Typ

(Note 5)

156

120

100

80

Max

(Note 6)

Power Supply

PSRR Power Supply Rejection Ratio V

=±5.4V to±6.6V 82

S

88 dB

80

I

S

Supply Current (per channel) No Load 12 16

18

LMH6624/LMH6626

Units

mA

Note 1: Absolute maximum ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is intended to be functional, but specific performance is not guaranteed. For guaranteed specifications and the test conditions, see the Electrical Characteristics.

Note 2: Human body model, 1.5kΩ in series with 100pF.

Note 3: Applies to both single-supply and split-supply operation. Continuous short circuit operation at elevated ambient temperature can result in exceeding the

maximum allowed junction temperature of 150˚C.

Note 4: The maximum power dissipation is a function of T P

=(T

D

J(MAX)-TA

Note 5: Typical Values represent the most likely parametric norm.

Note 6: All limits are guaranteed by testing or statistical analysis.

Note 7: Average drift is determined by dividing the change in parameter at temperature extremes into the total temperature change.

Note 8: Slew rate is the slowest of the rising and falling slew rates. Note 9: Machine Model, 0Ω in series with 200pF.

Note 10: Simulation results.

Note 11: Short circuit test is a momentary test. Output short circuit duration is 1.5ms.

Note 12: Electrical table values apply only for factory testing conditions at the temperature indicated. Factory testing conditions result in very limited self-heating of

the device such that T Absolute maximum ratings indicate junction temperature limits beyond which the device may be permanently degraded, either mechanically or electrically.

)/ θJA. All numbers apply for packages soldered directly onto a PC board.

. No guarantee of parametric performance is indicated in the electrical tables under conditions of internal self-heating where T

J=TA

, θJA, and TA. The maximum allowable power dissipation at any ambient temperature is

J(MAX)

>

TA.

J

Ordering Information

Package Part Number Package Marking Transport Media NSC Drawing

SOT23-5 LMH6624MF A94A 1k Units Tape and Reel MF05A

LMH6624MFX 3k Units Tape and Reel

SOIC-8 LMH6624MA LMH6624MA 95 Units/Rail M08A

LMH6624MAX 2.5k Units Tape and Reel

SOIC-8 LMH6626MA LMH6626MA 95 Units/Rail M08A

LMH6626MAX 2.5k Units Tape and Reel

MSOP-8 LMH6626MM A98A 1k Units Tape and Reel MUA08A

LMH6626MMX 3.5k Units Tape and Reel

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Typical Performance Characteristics

Voltage Noise vs. Frequency Current Noise vs. Frequency

LMH6624/LMH6626

Inverting Frequency Response Inverting Frequency Response

20058962 20058963

20058989 20058988

Non-Inverting Frequency Response Non-Inverting Frequency Response

20058904

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20058903