LTC6256CMS-TRPBF,LTC6256CMS-TRPBF pdf中文资料,LTC6256CMS-TRPBF引脚图,LTC6256CMS-TRPBF电路-Datasheet-电子工程世界

FeAtures

n

LTC6255/LTC6256/LTC6257

6.5MHz, 65µA Power

Efficient Rail-to-Rail I/O

Op Amps

Description

The LTC

®

6255/LTC6256/LTC6257 are single/dual/quad

operational amplifiers with low noise, low power, low

supply voltage, rail-to-rail input/output. They are unity

gain stable with capacitive load up to 100nF

. They feature

6.5MHz gain-bandwidth product, 1.8V/µs slew rate while

consuming only 65µA of supply current per amplifier op-

erating on supply voltages ranging from 1.8V to 5.25V. The

combination of low supply current, low supply voltage, high

gain bandwidth product and low noise makes the LTC6255

family unique among rail-to-rail input/output op amps with

similar supply currents. These operational amplifiers are

ideal for low power and low noise applications.

For applications that require power-down, LTC6255 and

LTC6256 in S6 and MS10 packages offer shutdown

pins which reduces the current consumption to 7µA

maximum.

The LTC6255 family can be used as plug-in replacements

for many commercially available op amps to reduce power

or to improve input/output range and performance.

L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and

Over-The-Top is a trademark of Linear Technology Corporation. All other trademarks are the

property of their respective owners.

Gain Bandwidth Product: 6.5MHz

–3dB Bandwidth (A

V

= +1): 4.5MHz

Low Quiescent Current: 65µA

Stable for Capacitive Load Up to 100nF

Offset Voltage: 350µV Maximum

Rail-to-Rail Input and Output

Supply Voltage Range: 1.8V to 5.25V

Input Bias Current: 35nA Maximum

CMRR/PSRR: 100dB/100dB

Shutdown Current: 7µA Maximum

Operating Temperature Range: –40°C to 125°C

Single in 6-Lead TSOT-23 Package

Dual in 8-Lead MS8, MS10, TS0T-23, 2mm × 2mm

Thin DFN Packages

Quad in MS16 Package

ApplicAtions

Micropower Active Filters

n

Portable Instrumentation

n

Battery or Solar Powered Systems

n

Automotive Electronics

n

typicAl ApplicAtion

Low Power, Low Distortion ADC Driver

0

3.3V

–10

–20

324

1%

470pF

NPO

6.34k, 1%

CS

SDO

SCK

OV

DD

MAGNITUDE (dB)

V

DD

A

IN

V

REF

–30

–40

–50

–60

–70

–80

10k

1%

625567 TA01a

LTC6255 Driving LTC2361 ADC

V

IN

= –1dBFS, 5kHz

f

S

= 125kSps

SNR = 72.5dB

SFDR = 89dB

t

ACQ

= 5µs

t

CONV

= 3µs

–

22pF

+

LTC6255

V

IN

5mV TO 2V

LTC2361

GND

–90

–100

–110

I

SUPPLY

= 540µA TOTAL AT 125kSps

0

10

20

30

40

FREQUENCY (kHz)

50

60

625567 TA01b

625567f

LTC6255/LTC6256/LTC6257

Absolute MAxiMuM rAtings

(Note 1)

Supply Voltage: V

+

– V

–

...........................................5.5V

Input Voltage .................................. V

–

– 0.2 to V

+

+ 0.2

.

Input Current: +IN, –IN, SHDN (Note 2) ............... ±10mA

Output Current: OUT ........................................... ±20mA

Output Short-Circuit Duration (Note 3) ............ Indefinite

Operating Temperature Range

(Note 4) ................................................. –40°C to 125°C

.

Specified Temperature Range

(Note 5) ................................................. –40°C to 125°C

.

Storage Temperature Range .................. –65°C to 150°C

Junction Temperature ........................................... 150°C

Lead Temperature (Soldering, 10 sec)

S6, TS8, MS8, MS only ........................................ 300°C

.

pin conFigurAtion

TOP VIEW

OUTA

–INA

+INA

V

–

1

3

4

+

–

8

9

V

–

7

6

5

+

–

V

+

OUTB

–INB

+INB

OUT 1

+IN 3

V

–

2

TOP VIEW

6 V

+

–

2

5

SHDN

4 –IN

KC PACKAGE

8-LEAD (2mm 2mm) PLASTIC UTDFN

T

JMAX

= 125°C, θ

JA

= 89°C/W (NOTE 6)

EXPOSED PAD (PIN 9) IS V

–

, MUST BE SOLDERED TO PCB

TOP VIEW

OUTA

–INA

+INA

V

–

1

2

3

4

8

7

6

5

V

+

OUTB

–INB

+INB

S6 PACKAGE

6-LEAD PLASTIC TSOT-23

T

JMAX

= 150°C, θ

JA

= 192°C/W (NOTE 6)

TOP VIEW

+

–

+

–

TS8 PACKAGE

8-LEAD PLASTIC TSOT-23

T

JMAX

= 150°C, θ

JA

= 195°C/W (NOTE 6)

MS8 PACKAGE

8-LEAD PLASTIC MSOP

T

JMAX

= 150°C, θ

JA

= 163°C/W (NOTE 6)

TOP VIEW

+

–

MS PACKAGE

10-LEAD PLASTIC MSOP

T

JMAX

= 150°C, θ

JA

= 160°C/W (NOTE 6)

+

–

OUTA

–INA

+INA

V

–

SHDNA

1

2

3

4

5

10

9

8

7

6

V

OUTB

–INB

+INB

SHDNB

+

–

MS PACKAGE

16-LEAD PLASTIC MSOP

T

JMAX

= 150°C, θ

JA

= 125°C/W (NOTE 6)

+

–

+

OUTA

–INA

+INA

V

+

+INB

–INB

OUTB

NC

1

2

3

4

5

6

7

8

+

–

OUTA

–INA

+INA

V

–

1

2

3

4

8

7

6

5

V

+

OUTB

–INB

+INB

+

–

+

–

+

–

16

15

14

13

12

11

10

9

OUTD

–IND

+IND

V

–

+INC

–INC

OUTC

NC

625567f

LTC6255/LTC6256/LTC6257

orDer inForMAtion

LEAD FREE FINISH

LTC6255IS6#TRMPBF

TAPE AND REEL

LTC6255IS6#TRPBF

PART MARKING* PACKAGE DESCRIPTION

LTFFT

LTFFW

DXYT

LTDXW

LTDXX

6257

6-Lead Plastic TSOT-23

8-Lead Plastic TSOT-23

SPECIFIED TEMPERATURE RANGE (Notes 4,5)

0°C to 70°C

–40°C to 85°C

–40°C to 125°C

0°C to 70°C

–40°C to 85°C

–40°C to 125°C

LTC6255CS6#TRMPBF LTC6255CS6#TRPBF

LTC6255HS6#TRMPBF LTC6255HS6#TRPBF

LTC6256CTS8#TRMPBF LTC6256CTS8#TRPBF

LTC6256ITS8#TRMPBF LTC6256ITS8#TRPBF

LTC6256HTS8#TRMPBF LTC6256HTS8#TRPBF

LTC6256CKC#TRMPBF LTC6256CKC#TRPBF

LTC6256IKC#TRMPBF

LTC6256CMS8#PBF

LTC6256IMS8#PBF

LTC6256CMS#PBF

LTC6256IMS#PBF

LTC6257CMS#PBF

LTC6257IMS#PBF

LTC6257HMS#PBF

LTC6256IKC#TRPBF

LTC6256IMS8#TRPBF

LTC6256CMS#TRPBF

LTC6256IMS#TRPBF

LTC6257CMS#TRPBF

LTC6257IMS#TRPBF

LTC6257HMS#TRPBF

8-Lead (2mm × 2mm) Plastic UTDFN 0°C to 70°C

8-Lead (2mm × 2mm) Plastic UTDFN –40°C to 85°C

8-Lead Plastic MSOP

10-Lead Plastic MSOP

16-Lead Plastic MSOP

0°C to 70°C

–40°C to 85°C

0°C to 70°C

–40°C to 85°C

0°C to 70°C

–40°C to 85°C

–40°C to 125°C

LTC6256CMS8#TRPBF LTDXW

Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.

Consult LTC Marketing for information on non-standard lead based finish parts.

For more information on lead free part marking, go to: http://www.linear.com/leadfree/

For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/

5V electricAl chArActeristics

SYMBOL PARAMETER

V

OS

Input Offset Voltage

The

l

denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at T

A

= 25°C. V

SUPPLY

= 5V, V

CM

= V

OUT

= V

SUPPLY

/2, C

L

= 10pF

SHDN

is unconnected.

, V

CONDITIONS

V

CM

= V

–

+ 2.5V (PNP Region)

l

MIN

–350

–700

–350

–700

–35

–60

–35

–60

–15

–30

–15

–30

TYP

100

1.5

–5

5

2

20

2.5

380

850

1

10

0.4

0.3

MAX

350

700

350

700

35

60

35

60

15

30

15

30

UNITS

µV

µV/°C

nA

nV/√Hz

µV

P-P

f

A

/√Hz

f

A

/√Hz

MΩ

pF

625567f

V

CM

= V

+

– 0.3V (NPN Region)

l

V

OS

TC

I

B

Input Offset Voltage Drift

Input Bias Current (Note 7)

V

CM

= V

–

+ 2.5V, V

+

– 0.3V

V

CM

= V

–

+ 2.5V

l

V

CM

= V

+

– 0.3V

l

I

OS

Input Offset Current

V

CM

= V

–

+ 2.5V

l

V

CM

= V

+

– 0.3V

l

e

n

i

n

R

IN

C

IN

Input Voltage Noise Density

Input Noise Voltage

Input Current Noise Density

Input Resistance

Input Capacitance

f = 1kHz

f = 0.1Hz to 10Hz

f = 1kHz, V

CM

= 0V to 4V (PNP Input)

f = 1kHz, V

CM

= 4V to 5V (NPN Input)

Differential

Common Mode

Differential

Common Mode

LTC6255/LTC6256/LTC6257

5V electricAl chArActeristics

SYMBOL PARAMETER

CMRR

IVR

PSRR

A

V

Common Mode Rejection Ratio

Input Voltage Range

Power Supply Rejection Ratio

Large Signal Gain

V

CM

= 0.4V, V

S

Ranges From 1.8V to 5V

l

The

l

denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at T

A

= 25°C. V

SUPPLY

= 5V, V

CM

= V

OUT

= V

SUPPLY

/2, C

L

= 10pF

SHDN

is unconnected.

, V

CONDITIONS

V

CM

= 0.3V to 3.5V

l

MIN

80

76

–0.1

85

81

50

28

25

8

TYP

100

MAX

UNITS

dB

5.1

100

200

50

6

25

35

30

40

75

95

55

60

80

90

150

170

V

dB

V/mV

mV

mA

V

O

= 0.5V to 4.5V, R

LOAD

= 100k

l

V

O

= 0.5V to 4.5V, R

LOAD

= 10k

l

V

OL

Output Swing Low (Input Overdrive 30mV).

Measured from V

–

No Load

l

I

SINK

= 100µA

l

10

30

l

I

SINK

= 1mA

V

OH

Output Swing High (Input Overdrive 30mV).

Measured from V

+

No Load

l

24

30

l

I

SOURCE

= 100µA

I

SOURCE

= 1mA

l

75

17

8

57

42

35

65

6

l

I

SC

I

S

Output Short-Circuit Current

l

Supply Current per Amplifier

l

73

88

7

12

µA

nA

Supply Current in Shutdown

I

SHDN

V

IL

V

IH

t

ON

t

OFF

BW

GBW

t

S

SR

FPBW

THD+N

I

LEAK

Shutdown Pin Current

SHDN Input Low Voltage

SHDN Input High Voltage

Turn-On Time

Turn-Off Time

–3dB Closed Loop Bandwidth

Gain-Bandwidth Product

Settling Time, 0.5V to 4.5V, Unity Gain

Slew Rate

Full Power Bandwidth (Note 8)

Total Harmonic Distortion and Noise

Output Leakage Current in Shutdown

A

V

= 1

f = 200kHz

l

V

SHDN

= 0.6V

V

SHDN

= 1.5V

Disable

Enable

l

–1400 –1000

l

–900 –500

l

0.6

1.5

5

3

4.5

2.5

2

6.5

4

6

V

µs

MHz

µs

V/µs

kHz

%

dB

0.1%

0.01%

A

V

= –1, V

OUT

= 0.5V to 4.5V, C

LOAD

= 10pF

,

R

F

= R

G

= 10kΩ

4V

P-P

f = 500Hz, A

V

= 2, R

L

= 4kΩ, V

OUTP-P

= 1V

V

IN

= 2.25V to 2.75V

V

SHDN

= 0V, V

OUT

= 0V

V

SHDN

= 0V, V

OUT

= 5V

l

1.0

0.75

1.8

140

0.0022

93

–400

400

nA

625567f

LTC6255/LTC6256/LTC6257

The

l

denotes the specifications which apply over the full

operating temperature range, otherwise specifications are at T

A

= 25°C. V

SUPPLY

= 1.8V, V

CM

= V

OUT

= 0.4V, C

L

= 10pF

SHDN

is

, V

unconnected.

SYMBOL PARAMETER

V

OS

Input Offset Voltage

CONDITIONS

V

CM

= V

–

+ 0.3V

l

1.8V electricAl chArActeristics

MIN

–350

–700

–350

–700

–35

–60

–35

–60

–15

–30

–15

–30

TYP

100

1.5

–8

5

2

21

2.5

580

870

1

10

0.4

0.3

MAX

350

700

350

700

35

60

35

60

15

30

15

30

UNITS

µV

µV/°C

nA

nV/√Hz

µV

P-P

f

A

/√Hz

f

A

/√Hz

MΩ

pF

dB

V

CM

= V

+

– 0.3V

l

V

OS

TC

I

B

Input Offset Voltage Drift

Input Bias Current (Note 7)

V

CM

= V

–

+ 0.3V, V

+

– 0.3V

V

CM

= V

–

+ 0.3V

l

V

CM

= V

+

– 0.3V

l

I

OS

Input Offset Current

V

CM

= V

–

+ 0.3V

l

V

CM

= V

+

– 0.3V

l

e

n

i

n

R

IN

C

IN

CMRR

IVR

PSRR

A

V

Input Voltage Noise Density

Input Noise Voltage

Input Current Noise Density

Input Resistance

Input Capacitance

Common Mode Rejection Ratio

Input Voltage Range

Power Supply Rejection Ratio

Large Signal Gain

f = 1kHz, V

CM

= 0.4V

f = 0.1Hz to 10Hz

f = 1kHz, V

CM

= 0V to 0.8V (PNP Input)

f = 1kHz, V

CM

= 1V to 1.8V (NPN Input)

Differential

Common Mode

Differential

Common Mode

V

CM

= 0.2V to 1.6V

l

74

67

–0.1

85

81

30

17

15

5

90

1.9

100

110

50

6

35

40

45

75

90

V

dB

V/mV

mV

V

CM

= 0.4V, V

S

Ranges From 1.8V to 5V

l

V

O

= 0.5V to 1.3V, R

LOAD

= 100k

l

V

O

= 0.5V to 1.3V, R

LOAD

= 10k

l

V

OL

Output Swing Low (Input Overdrive 30mV),

Measured from V

–

No Load

l

I

SINK

= 100µA

l

10

30

l

I

SINK

= 1mA

625567f

LTC6256CMS-TRPBF

LTC6256CMS-TRPBF概述

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