LTC6244 Datasheet_PDF文件下载_芯片资料查询

Input Bias Current: 1pA (Typ at 25掳C)

Low Offset Voltage: 100碌V Max

Low Offset Drift: 2.5碌V/掳C Max

0.1Hz to 10Hz Noise: 1.5碌V

P-P

Slew Rate: 40V/碌s

Gain Bandwidth Product: 50MHz

Output Swings Rail-to-Rail

Supply Operation:

2.8V to 6V LTC6244

2.8V to 卤5.25V LTC6244HV

Low Input Capacitance: 2.1pF

Available in 8-Pin MSOP and Tiny DFN Packages

The LTC

庐

6244 is a dual high speed, unity-gain stable CMOS

op amp that features a 50MHz gain bandwidth, 40V/碌s slew

rate, 1pA of input bias current, low input capacitance and

rail-to-rail output swing. The 0.1Hz to 10Hz noise is just

1.5碌V

P-P

and 1kHz noise is guaranteed to be less than

12nV/鈭欻z. This excellent AC and noise performance is

combined with wide supply range operation, a maximum

offset voltage of just 100碌V and drift of only 2.5碌V/掳C,

making it suitable for use in many fast signal processing

applications, such as photodiode ampli铿乪rs.

This op amp has an output stage that swings within 35mV

of either supply rail to maximize the signal dynamic range

in low supply applications. The input common mode

range extends to the negative supply. It is fully speci铿乪d

on 3V and 5V, and an HV version guarantees operation

on supplies of 卤5V.

The LTC6244 is available in the 8-pin MSOP, and for com-

pact designs, it is packaged in the tiny dual 铿乶e pitch lead

free (DFN) package.

, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.

All other trademarks are the property of their respective owners.

APPLICATIO S

鈻?/div>

Photodiode Ampli铿乪rs

Charge Coupled Ampli铿乪rs

Low Noise Signal Processing

Active Filters

Medical Instrumentation

High Impedance Transducer Ampli铿乪r

TYPICAL APPLICATIO

5V

PHILIPS

BF862

JFET

5V

4.99k

鈥?V

4.7碌F*

4.99k

V

BB

HAMAMATSU LARGE AREA

PHOTODIODE

S1227-1010BQ

C

PD

= 3000pF

* CAN BE MICROPHONIC, FILM, X7R, IF NEEDED.

I

PD

Very Low Noise Large Area Photodiode

0.25pF

120

110

1M

NUMBER OF UNITS

V

OUT

= 1M 鈥?I

PD

BW = 350kHz

NOISE = 291nV AT 10kHz

V

OUT

100

90

80

70

60

50

40

30

20

10

0

鈥?0

LTC6244MS8

V

S

= 5V, 0V

V

CM

= 2.5V

T

A

= 25掳C

鈥?/div>

1/2

LTC6244HV

+

鈥?V

6244 TA01a

20

40

鈥?0 鈥?0

0

INPUT OFFSET VOLTAGE (碌V)

U

V

OS

Distribution

60

6244 G01

U

6244f

1

LTC6244CMS8

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