NSC LM8262MMX, LM8262MM Datasheet

LM8262 Dual RRIO, High Output Current & Unlimited Cap Load Op Amp in MSOP

June 2002

General Description

The LM8262 is a Rail-to-Rail input and output Op Amp which can operate with a wide supply voltage range. This device has high output current drive, greater than Rail-to-Rail input common mode voltage range, unlimited capacitive load drive capability, and provides tested and guaranteed high speed and slew rate. It is specifically designed to handle the requirements of flat panel TFT panel V as well as being suitable for other low power, and medium speed applications which require ease of use and enhanced performance over existing devices.

Greater than Rail-to-Rail input common mode voltage range with 50dB of Common Mode Rejection, allows high side and low side sensing, among many applications, without having any concerns over exceeding the range and no compromise in accuracy. In addition, most device parameters are insensitive to power supply variations; this design enhancement is yet another step in simplifying its usage. The output stage has low distortion (0.05% THD+N) and can supply a respectable amount of current (15mA) with minimal headroom from either rail (300mV).

The LM8262 is offered in the space saving MSOP package.

Output Response with Heavy Capacitive Load

driver applications

COM

Features

(VS=5V,TA= 25˚C, Typical values unless specified).

n GBWP 21MHz n Wide supply voltage range 2.5V to 22V n Slew rate 12V/µs n Supply current/channel 1.15 mA n Cap load limit Unlimited n Output short circuit current +53mA/−75mA n +/−5% Settling time 400ns (500pF, 100mV n Input common mode voltage 0.3V beyond rails n Input voltage noise 15nV/

n Input current noise 1pA/ n THD+N

step)

0.05%

Applications

n TFT-LCD flat panel V n A/D converter buffer n High side/low side sensing n Headphone amplifier

Connection Diagram

driver

COM

8-Pin MSOP

Top View

20021037

20021001

Ordering Information

Package Part Number Package

Marking

8-Pin MSOP LM8262MM

LM8262MMX 3.5k Units Tape and Reel

A46

Media Transport NSC Drawing

1k Units Tape and Reel

MUA08A

Absolute Maximum Ratings (Note 1)

If Military/Aerospace specified devices are required,

LM8262

please contact the National Semiconductor Sales Office/ Distributors for availability and specifications.

ESD Tolerance

Differential +/−10V

Output Short Circuit Duration (Notes 3, 11)

Supply Voltage (V

+-V−

) 24V

Voltage at Input/Output pins V

2KV (Note 2)

200V(Note 9)

+0.8V, V−−0.8V

Soldering Information:

Infrared or Convection (20 sec.) 235˚C

Wave Soldering (10 sec.) 260˚C

Operating Ratings

Supply Voltage (V+-V−) 2.5V to 22V

Junction Temperature Range(Note 4) −40˚C to +85˚C

Package Thermal Resistance, θ

8-Pin MSOP 235˚C/W

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

Junction Temperature (Note 4) +150˚C

2.7V Electrical Characteristics

Unless otherwise specified, all limits guaranteed for TJ= 25˚C, V+= 2.7V, V−= 0V, VCM= 0.5V, VO=V+/2, and

1MΩ to V−. Boldface limits apply at the temperature extremes.

Symbol Parameter Condition

TC V

Input Offset Voltage VCM= 0.5V & VCM= 2.2V – +/−0.7 +/−5

Input Offset Average Drift VCM= 0.5V & VCM= 2.2V

(Note 12)

Input Bias Current VCM= 0.5V

(Note 7)

VCM= 2.2V (Note 7)

CMRR Common Mode Rejection

Input Offset Current VCM= 0.5V & VCM= 2.2V – 20 250

VCMstepped from 0V to 1.0V 76

Ratio

stepped from 1.7V to 2.7V – 100 –

stepped from 0V to 2.7V 58

+PSRR Positive Power Supply

= 2.7V to 5V 78

Rejection Ratio

CMVR Input Common-Mode Voltage

CMRR>50dB – −0.3 −0.1

Range

VOL

Large Signal Voltage Gain VO= 0.5 to 2.2V,

−

Output Swing

= 10k to V

= 0.5 to 2.2V,

=2ktoV

RL= 10k to V

High

−

Output Swing

RL=2ktoV

= 10k to V

Low

Output Short Circuit Current Sourcing to V

−

VID= 200mV (Note 10)

Sinking to V

VID= −200mV (Note 10)

Min

(Note 6)

– +/−2 – µV/C

– −1.20 −2.00

– +0.49 +1.00

2.8

2.7

2.49

2.46

2.45

2.41

– 90 100

Typ

(Note 5)

100 –

70 –

104 – dB

3.0 – V

78 – dB

73 – dB

2.59 –

2.53 –

48 –

65 –

,(Note 4)

Max

(Note 6)

+/−7

−2.70

+1.60

400

0.0

120

Units

µA

dBV

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2.7V Electrical Characteristics (Continued)

Unless otherwise specified, all limits guaranteed for TJ= 25˚C, V+= 2.7V, V−= 0V, VCM= 0.5V, VO=V+/2, and

1MΩ to V−. Boldface limits apply at the temperature extremes.

Symbol Parameter Condition

SR Slew Rate (Note 8) AV= +1,VI=2V

Supply Current (both amps) No load, VCM= 0.5V – 2.0 2.5

Unity Gain-Frequency VI= 10mV, RL=2kΩ to V+/2 – 10 – MHz

Min

(Note 6)

– 9 – V/µs

GBWP Gain Bandwidth Product f = 50KHz 15.5

Phi

Phase Margin VI= 10mV – 50 – Deg

Input-Referred Voltage Noise f = 2KHz, RS=50Ω – 15 – nV/

Typ

(Note 5)

21 – MHz

Max

(Note 6)

3.0

LM8262

Units

max

Input-Referred Current Noise f = 2KHz – 1 – pA/

Full Power Bandwidth ZL= (20pF || 10kΩ)toV+/2 – 1 – MHz

5V Electrical Characteristics

Unless otherwise specified, all limited guaranteed for TJ= 25˚C, V+= 5V, V−= 0V, VCM= 1V, VO=V+/2, and

1MΩ to V−. Boldface limits apply at the temperature extremes.

Symbol Parameter Condition

TC V

Input Offset Voltage VCM=1V&VCM= 4.5V – +/−0.7 +/−5

Input Offset Average Drift VCM=1V&VCM= 4.5V

(Note 12)

Input Bias Current VCM=1V

(Note 7)

= 4.5V

(Note 7)

CMRR Common Mode Rejection

Input Offset Current VCM=1V&VCM= 4.5V – 20 250

VCMstepped from 0V to 3.3V 84

Ratio

stepped from 4V to 5V – 100 –

stepped from 0V to 5V 64

+PSRR Positive Power Supply

V+= 2.7V to 5V, VCM= 0.5V 78

Rejection Ratio

CMVR Input Common-Mode Voltage

CMRR

50dB – −0.3 −0.1

Range

VOL

Large Signal Voltage Gain VO= 0.5 to 4.5V,

−

Output Swing

= 10k to V

= 0.5 to 4.5V,

=2ktoV

RL= 10k to V

High

−

Output Swing

=2ktoV

= 10k to V

Low

Min

(Note 6)

– +/−2 – µV/˚C

– −1.18 −2.00

– +0.49 +1.00

5.1

5.0

4.75

4.72

4.70

4.66

– 86 125

Typ

(Note 5)

110 –

80 –

104 – dB

5.3 – V

84 –

80 –

4.87 –

4.81 –

Max

(Note 6)

+/− 7

−2.70

+1.60

400

0.0

135

Units

µA

dBV

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