National Semiconductor LMH6618, LMH6619 Technical data

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LMH6618 Single/LMH6619 Dual
PowerWise® 130 MHz, 1.25 mA RRIO Operational
Amplifiers

LMH6618 Single/LMH6619 Dual PowerWise130 MHz, 1.25 mA RRIO Operational Amplifiers

November 27, 2007

General Description

The LMH6618 (single, with shutdown) and LMH6619 (dual)
are 130 MHz rail-to-rail input and output amplifiers designed
for ease of use in a wide range of applications requiring high
speed, low supply current, low noise, and the ability to drive
complex ADC and video loads. The operating voltage range
extends from 2.7V to 11V and the supply current is typically

1.25 mA per channel at 5V. The LMH6618 and LMH6619 are
members of the PowerWise family and have an exceptional
power-to-performance ratio.

The amplifier’s voltage feedback design topology provides
balanced inputs and high open loop gain for ease of use and
accuracy in applications such as active filter design. Offset
voltage is typically 0.1 mV and settling time to 0.01% is 120
ns which combined with an 100 dBc SFDR at 100 kHz makes
the part suitable for use as an input buffer for popular 8-bit,
10-bit, 12-bit and 14-bit mega-sample ADCs.

The input common mode range extends 200 mV beyond the
supply rails. On a single 5V supply with a ground terminated
150Ω load the output swings to within 37 mV of the ground
rail, while a mid-rail terminated 1 kΩ load will swing to 77 mV
of either rail, providing true single supply operation and max­imum signal dynamic range on low power rails. The amplifier
output will source and sink 35 mA and drive up to 30 pF loads
without the need for external compensation.

The LMH6618 has an active low disable pin which reduces
the supply current to 72 µA and is offered in the space saving
6-Pin TSOT23 package. The LMH6619 is offered in the 8-Pin
SOIC package. The LMH6618 and LMH6619 are available
with a −40°C to +125°C extended industrial temperature
grade.

Features

VS = 5V, RL = 1 kΩ, TA = 25°C and AV = +1, unless otherwise
specified.

Operating voltage range 2.7V to 11V

■

Supply current per channel 1.25 mA

■

Small signal bandwidth 130 MHz

■

Slew rate 55 V/µs

■

Settling time to 0.1% 90 ns

■

Settling time to 0.01% 120 ns

■

SFDR (f = 100 kHz, AV = +1, V

■

0.1 dB bandwidth (AV = +2) 15 MHz

■

Low voltage noise 10 nV/√Hz

■

Industrial temperature grade −40°C to +125°C

■

Rail-to-Rail input and output

■

= 2 VPP) 100 dBc

OUT

Applications

ADC driver

■

DAC buffer

■

Active filters

■

High speed sensor amplifier

■

Current sense amplifier

■

Portable video

■

STB, TV video amplifier

■

Typical Application

PowerWise® is a registered trademark of National Semiconductor.

WEBENCH® is a registered trademark of National Semiconductor Corporation.

© 2007 National Semiconductor Corporation 201958 www.national.com

20195829

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 (Note 2)
Human Body Model
For input pins only 2000V

LMH6618/LMH6619

For all other pins 2000V
Machine Model 200V

Supply Voltage (VS = V+ – V−)

12V

Junction Temperature (Note 3) 150°C max

Operating Ratings (Note 1)

Supply Voltage (VS = V+ – V−)

Ambient Temperature Range (Note 3) −40°C to +125°C
Package Thermal Resistance (θJA)

6-Pin TSOT23 231°C/W
8-Pin SOIC 160°C/W

2.7V to 11V

+3V Electrical Characteristics Unless otherwise specified, all limits are guaranteed for T

= +25°C,

J

V+ = 3V, V− = 0V, DISABLE = 3V, VCM = VO = V+/2, AV = +1 (RF = 0Ω), otherwise RF = 2 kΩ for AV ≠ +1, RL = 1 kΩ || 5 pF.

Boldface Limits apply at temperature extremes. (Note 4)

Symbol Parameter Condition Min

(Note 8)

Typ

(Note 7)

Max

(Note 8)

Units

Frequency Domain Response

SSBW –3 dB Bandwidth Small Signal

GBW Gain Bandwidth

LSBW −3 dB Bandwidth Large Signal

AV = 1, RL = 1 kΩ, V

AV = 2, −1, RL = 1 kΩ, V

OUT

= 0.2 V

= 0.2 V

OUT

AV = 10, RF = 2 kΩ, RG = 221Ω,

RL = 1 kΩ, V

AV = 1, RL = 1 kΩ, V

AV = 2, RL = 150Ω, V

OUT

= 0.2 V

OUT

OUT

PP

= 2 V

= 2 V

PP

PP

PP

PP

120

56

MHz

55 71 MHz

13

13

MHz

Peak Peaking AV = 1, CL = 5 pF 1.5 dB

0.1
dBBW

DG Differential Gain AV = +2, 4.43 MHz, 0.6V < V

0.1 dB Bandwidth AV = 2, V

RF = RG = 825Ω

= 0.5 VPP ,

OUT

OUT

< 2V,

15 MHz

0.1 %

RL = 150Ω to V+/2

DP Differential Phase AV = +2, 4.43 MHz, 0.6V < V

OUT

< 2V,

0.1 deg

RL = 150Ω to V+/2

Time Domain Response

tr/t

f

SR Slew Rate 2V Step, AV = 1 36 46

t

s_0.1

t

s_0.01

Rise & Fall Time 2V Step, AV = 1 36 ns

V/μs

0.1% Settling Time 2V Step, AV = −1 90

0.01% Settling Time 2V Step, AV = −1 120

ns

Noise and Distortion Performance

SFDR Spurious Free Dynamic Range

e

n

i

n

Input Voltage Noise f = 100 kHz 10

Input Current Noise f = 100 kHz 1

fC = 100 kHz, V

fC = 1 MHz, V

fC = 5 MHz, V

OUT

= 2 VPP, RL = 1 kΩ

OUT

= 2 VPP, RL = 1 kΩ

OUT

CT Crosstalk (LMH6619) f = 5 MHz, VIN = 2 V

= 2 VPP, RL = 1 kΩ

PP

100

61

dBc

47

nV/

pA/

80 dB

Input, DC Performance

V

OS

TCV

I

B

I

O

C

IN

R

IN

Input Offset Voltage VCM = 0.5V (pnp active)

0.1 ±0.6

VCM = 2.5V (npn active)

Input Offset Voltage Average Drift (Note 5) 0.8

OS

Input Bias Current VCM = 0.5V (pnp active) −1.4 −2.6

VCM = 2.5V (npn active) +1.0 +1.8

Input Offset Current 0.01 ±0.27

Input Capacitance 1.5 pF

Input Resistance 8

±1.0

mV

μV/°C

μA

μA

MΩ

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LMH6618/LMH6619

Symbol Parameter Condition Min

(Note 8)

CMVR Input Voltage Range

DC, CMRR ≥ 65 dB

−0.2 3.2 V

CMRR Common Mode Rejection Ratio VCM Stepped from −0.1V to 1.4V 78 96

VCM Stepped from 2.0V to 3.1V 81 107

A

OL

Open Loop Gain

RL = 1 kΩ to +2.7V or +0.3V

RL = 150Ω to +2.6V or +0.4V

85 98

76 82

Typ

(Note 7)

Max

(Note 8)

Units

dB

dB

Output DC Characteristics

V

O

Output Swing High (LMH6618)
(Voltage from V+ Supply Rail)

RL = 1 kΩ to V+/2

RL =150Ω to V+/2

56

62

172

50

160

198

Output Swing Low (LMH6618)
(Voltage from V− Supply Rail)

RL = 1 kΩ to V+/2

RL = 150Ω to V+/2

60 66

74

170 184

mV

217

RL = 150Ω to V

−

29 39

43

Output Swing High (LMH6619)
(Voltage from V+ Supply Rail)

RL = 1 kΩ to V+/2

RL =150Ω to V+/2

56

62

172

50

160

198

Output Swing Low (LMH6619)
(Voltage from V− Supply Rail)

RL = 1 kΩ to V+/2

RL =150Ω to V+/2

62 68

76

175 189

mV

222

RL = 150Ω to V

−

34 44

48

I

R

OUT

O

Linear Output Current V

= V+/2 (Note 6) ±25 ±35 mA

OUT

Output Resistance f = 1 MHz 0.17

Enable Pin Operation

Enable High Voltage Threshold Enabled 2.0 V

Enable Pin High Current V

= 3V 0.04 µA

DISABLE

Enable Low Voltage Threshold Disabled 1.0 V

Enable Pin Low Current V

t

on

t

off

Turn-On Time 25 ns

Turn-Off Time 90 ns

= 0V 1 µA

DISABLE

Power Supply Performance

PSRR Power Supply Rejection Ratio DC, VCM = 0.5V, VS = 2.7V to 11V 84 104 dB

I

S

I

SD

Supply Current (LMH6618)

RL = ∞

1.2 1.5

1.7

Supply Current (LMH6619)
(per channel)

RL = ∞

1.2 1.5

1.75

Disable Shutdown Current DISABLE = 0V 59 85

mA

μA

Ω

3 www.national.com

+5V Electrical Characteristics Unless otherwise specified, all limits are guaranteed for T

= +25°C,

J

V+ = 5V, V− = 0V, DISABLE = 5V, VCM = VO = V+/2, AV = +1 (RF = 0Ω), otherwise RF = 2 kΩ for AV ≠ +1, RL = 1 kΩ || 5 pF.

Boldface Limits apply at temperature extremes.

Symbol Parameter Condition Min

(Note 8)

Typ

(Note 7)

Max

(Note 8)

Frequency Domain Response

SSBW –3 dB Bandwidth Small Signal

LMH6618/LMH6619

GBW Gain Bandwidth

LSBW −3 dB Bandwidth Large Signal

AV = 1, RL = 1 kΩ, V

AV = 2, −1, RL = 1 kΩ, V

OUT

= 0.2 V

= 0.2 V

OUT

AV = 10, RF = 2 kΩ, RG = 221Ω,

RL = 1 kΩ, V

AV = 1, RL = 1 kΩ, V

AV = 2, RL = 150Ω, V

OUT

= 0.2 V

OUT

OUT

PP

= 2 V

= 2 V

PP

PP

PP

PP

130

53

54 64 MHz

15

15

Peak Peaking AV = 1, CL = 5 pF 0.5 dB

0.1
dBBW

DG Differential Gain AV = +2, 4.43 MHz, 0.6V < V

0.1 dB Bandwidth AV = 2, V

RF = RG = 1 kΩ

= 0.5 VPP,

OUT

OUT

< 2V,

15 MHz

0.1 %

RL = 150Ω to V+/2

DP Differential Phase AV = +2, 4.43 MHz, 0.6V < V

OUT

< 2V,

0.1 deg

RL = 150Ω to V+/2

Time Domain Response

tr/t

f

Rise & Fall Time 2V Step, AV = 1 30 ns

SR Slew Rate 2V Step, AV = 1 44 55

t

s_0.1

t

s_0.01

0.1% Settling Time 2V Step, AV = −1 90

0.01% Settling Time 2V Step, AV = −1 120

Distortion and Noise Performance

SFDR Spurious Free Dynamic Range

fC = 100 kHz, V

fC = 1 MHz, V

OUT

= 2 VPP, RL = 1 kΩ

OUT

fC = 5 MHz, VO = 2 VPP, RL = 1 kΩ

e

n

i

n

Input Voltage Noise f = 100 kHz 10

Input Current Noise f = 100 kHz 1

CT Crosstalk (LMH6619) f = 5 MHz, VIN = 2 V

= 2 VPP, RL = 1 kΩ

PP

100

88

61

80 dB

Input, DC Performance

V

OS

TCV

I

B

Input Offset Voltage VCM = 0.5V (pnp active)

VCM = 4.5V (npn active)

Input Offset Voltage Average Drift (Note 5) 0.8 µV/°C

OS

0.1 ±0.6

±1.0

Input Bias Current VCM = 0.5V (pnp active) −1.5 −2.4

VCM = 4.5V (npn active) +1.0 +1.9

I

O

C

IN

R

IN

CMVR Input Voltage Range

Input Offset Current 0.01 ±0.26

Input Capacitance 1.5 pF

Input Resistance 8

DC, CMRR ≥ 65 dB

−0.2 5.2 V

CMRR Common Mode Rejection Ratio VCM Stepped from −0.1V to 3.4V 81 98

VCM Stepped from 4.0V to 5.1V 84 108

A

OL

Open Loop Gain

RL = 1 kΩ to +4.6V or +0.4V

RL = 150Ω to +4.5V or +0.5V

84 100

78 83

Units

MHz

MHz

V/μs

ns

dBc

nV/

pA/

mV

μA

μA

MΩ

dB

dB

www.national.com 4

LMH6618/LMH6619

Symbol Parameter Condition Min

(Note 8)

Typ

(Note 7)

Max

(Note 8)

Units

Output DC Characteristics

V

O

Output Swing High (LMH6618)
(Voltage from V+ Supply Rail)

RL = 1 kΩ to V+/2

RL = 150Ω to V+/2

73

82

255

60

230

295

Output Swing Low (LMH6618)
(Voltage from V− Supply Rail)

RL = 1 kΩ to V+/2

RL = 150Ω to V+/2

75 83

96

250 270

mV

321

RL = 150Ω to V

−

32 43

45

Output Swing High (LMH6619)
(Voltage from V+ Supply Rail)

RL = 1 kΩ to V+/2

RL = 150Ω to V+/2

73

82

255

60

230

295

Output Swing Low (LMH6619)
(Voltage from V− Supply Rail)

RL = 1 kΩ to V+/2

RL = 150Ω to V+/2

77 85

98

255 275

mV

326

RL = 150Ω to V

−

37 48

50

I

R

OUT

O

Linear Output Current V

= V+/2 (Note 6) ±25 ±35 mA

OUT

Output Resistance f = 1 MHz 0.17

Ω

Enable Pin Operation

Enable High Voltage Threshold Enabled 3.0 V

Enable Pin High Current V

= 5V 1.2 µA

DISABLE

Enable Low Voltage Threshold Disabled 2.0 V

Enable Pin Low Current V

t

on

t

off

Turn-On Time 25 ns

Turn-Off Time 90 ns

= 0V 2.5 µA

DISABLE

Power Supply Performance

PSRR Power Supply Rejection Ratio DC, VCM = 0.5V, VS = 2.7V to 11V 84 104 dB

I

S

I

SD

Supply Current (LMH6618)

RL = ∞

1.25 1.5

1.7

Supply Current (LMH6619)
(per channel)

RL = ∞

1.3 1.5

1.75

Disable Shutdown Current DISABLE = 0V 72 105

mA

μA

±5V Electrical Characteristics Unless otherwise specified, all limits are guaranteed for T

= +25°C,

J

V+ = 5V, V− = −5V, DISABLE = 5V, VCM = VO = 0V, AV = +1 (RF = 0Ω), otherwise RF = 2 kΩ for AV ≠ +1, RL = 1 kΩ || 5 pF.

Boldface Limits apply at temperature extremes.

Symbol Parameter Condition Min

(Note 8)

Typ

(Note 7)

Max

(Note 8)

Frequency Domain Response

SSBW –3 dB Bandwidth Small Signal

GBW Gain Bandwidth

LSBW −3 dB Bandwidth Large Signal

AV = 1, RL = 1 kΩ, V

AV = 2, −1, RL = 1 kΩ, V

OUT

= 0.2 V

= 0.2 V

OUT

AV = 10, RF = 2 kΩ, RG = 221Ω,

RL = 1 kΩ, V

AV = 1, RL = 1 kΩ, V

AV = 2, RL = 150Ω, V

= 0.2 V

OUT

PP

= 2 V

OUT

= 2 V

OUT

5 www.national.com

PP

PP

PP

PP

140

53

54 65 MHz

16

15

Units

MHz

MHz

Symbol Parameter Condition Min

(Note 8)

Typ

(Note 7)

Max

(Note 8)

Peak Peaking AV = 1, CL = 5 pF 0.05 dB

0.1
dBBW

DG Differential Gain AV = +2, 4.43 MHz, 0.6V < V

LMH6618/LMH6619

DP Differential Phase AV = +2, 4.43 MHz, 0.6V < V

0.1 dB Bandwidth AV = 2, V

RF = RG = 1.21 kΩ

RL = 150Ω to V+/2

= 0.5 VPP,

OUT

OUT

OUT

< 2V,

< 2V,

15 MHz

0.1 %

0.1 deg

RL = 150Ω to V+/2

Time Domain Response

tr/t

f

Rise & Fall Time 2V Step, AV = 1 30 ns

SR Slew Rate 2V Step, AV = 1 45 57

t

s_0.1

t

s_0.01

0.1% Settling Time 2V Step, AV = −1 90

0.01% Settling Time 2V Step, AV = −1 120

Noise and Distortion Performance

SFDR Spurious Free Dynamic Range

e

n

i

n

Input Voltage Noise f = 100 kHz 10

Input Current Noise f = 100 kHz 1

fC = 100 kHz, V

fC = 1 MHz, V

fC = 5 MHz, V

OUT

= 2 VPP, RL = 1 kΩ

OUT

= 2 VPP, RL = 1 kΩ

OUT

CT Crosstalk (LMH6619) f = 5 MHz, VIN = 2 V

= 2 VPP, RL = 1 kΩ

PP

100

88

70

80 dB

Input DC Performance

V

OS

TCV

I

B

Input Offset Voltage VCM = −4.5V (pnp active)

VCM = 4.5V (npn active)

Input Offset Voltage Average Drift (Note 5) 0.9 µV/°C

OS

0.1 ±0.6

±1.0

Input Bias Current VCM = −4.5V (pnp active) −1.5 −2.4

VCM = 4.5V (npn active) +1.0 +1.9

I

O

C

IN

R

IN

CMVR Input Voltage Range

Input Offset Current 0.01 ±0.26

Input Capacitance 1.5 pF

Input Resistance 8

DC, CMRR ≥ 65 dB

−5.2 5.2 V

CMRR Common Mode Rejection Ratio VCM Stepped from −5.1V to 3.4V 84 100

VCM Stepped from 4.0V to 5.1V 83 108

A

OL

Open Loop Gain

RL = 1 kΩ to +4.6V or −4.6V

RL = 150Ω to +4.3V or −4.3V

86 95

79 84

Units

V/μs

ns

dBc

nV/

pA/

mV

μA

μA

MΩ

dB

dB

www.national.com 6

LMH6618/LMH6619

Symbol Parameter Condition Min

(Note 8)

Typ

(Note 7)

Max

(Note 8)

Units

Output DC Characteristics

V

O

Output Swing High (LMH6618)
(Voltage from V+ Supply Rail)

RL = 1 kΩ to GND

RL = 150Ω to GND

111

126

457

100

430

526

Output Swing Low (LMH6618)
(Voltage from V− Supply Rail)

RL = 1 kΩ to GND

RL = 150Ω to GND

110 121

136

440 474

mV

559

RL = 150Ω to V

−

35 51

52

Output Swing High (LMH6619)
(Voltage from V+ Supply Rail)

RL = 1 kΩ to GND

RL = 150Ω to GND

111

126

457

100

430

526

Output Swing Low (LMH6619)
(Voltage from V− Supply Rail)

RL = 1 kΩ to GND

RL = 150Ω to GND

115 126

141

450 484

mV

569

RL = 150Ω to V

−

45 61

62

I

R

OUT

O

Linear Output Current V

= V+/2 (Note 6) ±25 ±35 mA

OUT

Output Resistance f = 1 MHz 0.17

Ω

Enable Pin Operation

Enable High Voltage Threshold Enabled 0.5 V

Enable Pin High Current V

= +5V 16 µA

DISABLE

Enable Low Voltage Threshold Disabled −0.5 V

Enable Pin Low Current V

t

on

t

off

Turn-On Time 25 ns

Turn-Off Time 90 ns

= −5V 17 µA

DISABLE

Power Supply Performance

PSRR Power Supply Rejection Ratio DC, VCM = −4.5V, VS = 2.7V to 11V 84 104 dB

I

S

I

SD

Supply Current (LMH6618)

RL = ∞

1.35 1.6

1.9

Supply Current (LMH6619)
(per channel)

RL = ∞

1.45 1.65

2.0

Disable Shutdown Current DISABLE = −5V 103 140

mA

μA

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, applicable std. MIL-STD-883, Method 3015.7. Machine Model, applicable std. JESD22-A115-A (ESD MM std. of JEDEC)

Field-Induced Charge-Device Model, applicable std. JESD22-C101-C (ESD FICDM std. of JEDEC).

Note 3: The maximum power dissipation is a function of T
PD = (T

Note 4: Boldface limits apply to temperature range of −40°C to 125°C

Note 5: Voltage average drift is determined by dividing the change in VOS by temperature change.

Note 6: Do not short circuit the output. Continuous source or sink currents larger than the I

Note 7: Typical values represent the most likely parametric norm as determined at the time of characterization. Actual typical values may vary over time and will

also depend on the application and configuration. The typical values are not tested and are not guaranteed on shipped production material.

Note 8: Limits are 100% production tested at 25°C. Limits over the operating temperature range are guaranteed through correlations using the Statistical Quality
Control (SQC) method.

) – TA)/ θJA. All numbers apply for packages soldered directly onto a PC Board.

J(MAX

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

J(MAX)

typical are not recommended as it may damage the part.

OUT

7 www.national.com

Connection Diagrams

LMH6618/LMH6619

Ordering Information

Package Part Number Package Marking Transport Media NSC Drawing

6-Pin TSOT23

8-Pin SOIC

6-Pin TSOT23

Top View

LMH6618MK

LMH6618MKX 3k Units Tape and Reel

LMH6619MA

LMH6619MAX 2.5k Units Tape and Reel

20195801

1k Units Tape and Reel

AE4A

95 Units/Rail

LMH6619MA

8-Pin SOIC

Top View

20195878

MK06ALMH6618MKE 250 Units Tape and Reel

M08ALMH6619MAE 250 Units Tape and Reel

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LMH6618/LMH6619

Typical Performance Characteristics At T

unless otherwise specified.

Closed Loop Frequency Response for

Various Supplies

20195831

Closed Loop Frequency Response for

Various Supplies

= 25°C, AV = +1 (RF = 0Ω), otherwise RF = 2 kΩ for AV ≠ +1,

J

Closed Loop Frequency Response for

Various Supplies

20195816

Closed Loop Frequency Response for

Various Supplies

Closed Loop Frequency Response for

Various Temperatures

20195819

20195815

20195817

Closed Loop Frequency Response for

Various Temperatures

20195820

9 www.national.com