LT1311CS Linear Technology, LT1311CS Datasheet

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LT1311CS

Manufacturer Part Number
LT1311CS
Description
IC PREC I/V CONV12MHZ QUAD14SOIC
Manufacturer
Linear Technology
Datasheet

Specifications of LT1311CS

Applications
Converter, Optical Disk Drives
Voltage - Input
±2 ~ ±18 V, 4 ~ 36 V
Number Of Outputs
4
Voltage - Output
2 ~ 8 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
14-SOIC (3.9mm Width), 14-SOL
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LT1311CS
Manufacturer:
LT
Quantity:
13
Part Number:
LT1311CS
Manufacturer:
LT/凌特
Quantity:
20 000
APPLICATIONS
FEATURES
TYPICAL
V
10V
Four Complete Current-to-Voltage Converters
14-Lead Small Outline Package
Accurate Gain: 20mV/ A, 4%
Low Offset Error: 250nA Max
Low Offset Drift: 2.5nA/ C Max
Fast Settling: 145ns to 0.1% for a 2V Step
Wide Bandwidth: 12MHz
Low Noise: 5pA/ Hz
Low Quiescent Current: 11mA Max
Wide Supply Range: 2V to 18V or 4V to 36V
Optical Disk Drive
Color Scanners
Matched Inverting Amplifiers
CC
Photo Diode Amplifiers
Focus and Tracking Summing Amplifiers
RGB Amplifiers
Selectable Gain Amplifiers
0.1 F
APPLICATION
Photo Diode Current-to-Voltage Converter
U
5V
1
2
3
4
5
6
7
IN A
IN B
BIAS
IN C
IN D
U
LT1311
+
+
+
+
OUT D
OUT B
OUT C
OUT A
Converter for Optical Disk Drives
14
13
12
11
10
9
8
1311 TA01
Precision Current-to-Voltage
Quad 12MHz, 145ns Settling
DESCRIPTION
The LT
signed for the demanding requirements of photo diode
amplification. A new approach to current-to-voltage con-
version provides excellent DC and AC performance with-
out external DC trims or AC frequency compensation. The
LT1311 is ideal for converting multiple photo diode cur-
rents to voltages and for general purpose matched invert-
ing amplifier applications.
The LT1311 contains four current feedback amplifiers,
each with an internal 20k feedback resistor. A supply
bypass capacitor is the only external component required
to convert four signal currents to voltages. Unlike voltage
feedback-based current-to-voltage converters that oper-
ate with only a specified value of input capacitance, the
current feedback LT1311 settles cleanly with any input
capacitance up to 50pF. Only in the most demanding
applications will the LT1311 need to be mounted close to
the photo diodes.
, LTC and LT are registered trademarks of Linear Technology Corporation.
®
C
C
1311 is a quad current-to-voltage converter de-
C
IN
IN
IN
= 20pF
= 50pF
= 1pF
INPUT = 100 A STEP
V
S
= 5V
U
Transient Response
LT1311
1311 TA02
1

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LT1311CS Summary of contents

Page 1

... LT1311 settles cleanly with any input capacitance up to 50pF. Only in the most demanding applications will the LT1311 need to be mounted close to the photo diodes. , LTC and LT are registered trademarks of Linear Technology Corporation. OUT A 14 – + ...

Page 2

... SINK 0mA 10MHz OUT I = 200 OUT 150 3V OUT U W INFORMATION ORDER PART TOP VIEW NUMBER 14 OUT A – – (AB) LT1311CS + 12 OUT B – – 10 OUT – 8 OUT D S PACKAGE = 160 unless otherwise noted. MIN TYP MAX 19.2 20 20.8 – 70 0.1 1.0 150 500 1 1 ...

Page 3

ELECTRICAL CHARACTERISTICS SYMBOL PARAMETER BW Small-Signal Bandwidth Full Power Bandwidth Rise Time, Fall Time Overshoot t Settling Time S THD Total Harmonic Distortion Crosstalk The denotes specifications which apply over the full specified temperature ...

Page 4

LT1311 W U TYPICAL PERFORMANCE CHARACTERISTICS Settling Time to 0.1%, 1mV,10mV vs Output Step 15V 20k 10mV 0.1% 1mV A = – –2 ...

Page 5

W U TYPICAL PERFORMANCE CHARACTERISTICS Small-Signal Response – PLIFIED SCHE ATIC Q18 + I ...

Page 6

... The trimming also minimizes the resulting output offset drift. For more detailed circuit information, please see the May 1995 (Volume 5, Number 2) issue of Linear Technology magazine. Supply Voltages The LT1311 can be operated on single or split supplies. The total supply voltage must be greater than 4V and less than 36V ...

Page 7

... Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen- tation that the interconnection of its circuits as described herein will not infringe on existing patent rights. 14 OUT A – + – ...

Page 8

... Highest Bandwidth, Precision Single Supply Op Amps Fastest Settling, Precision Single Supply Op Amps External Compensation and Output Clamping : 499-3977 0.150 – 0.157* (3.810 – 3.988 0.004 – 0.010 (0.101 – 0.254) 0.050 (1.270) TYP SO14 0294 LT/GP 0595 10K • PRINTED IN USA LINEAR TECHNOLOGY CORPORATION 1995 ...

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