LT1016IS8 Linear Technology, LT1016IS8 Datasheet - Page 20

• Manufacturer Part Number: LT1016IS8
• Description: IC COMPARATOR 10NS HI-SPD 8-SOIC
• Manufacturer: Linear Technology
• Series: UltraFast™r
• Type: General Purposer

Specifications of LT1016IS8

• Number Of Elements: 1
• Output Type: CMOS, Complementary, TTL
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

LT1016
APPLICATIO S I FOR ATIO
1Hz to 10MHz V-to-F Converter
The LT1016 and the LT1122 FET input amplifier combine
to form a high speed V-to-F converter in Figure 16. A
variety of techniques is used to achieve a 1Hz to 10MHz
output. Overrange to 12MHz (V
circuit’s dynamic range is 140dB, or seven decades, which
is wider than any commercially available unit. The 10MHz
full-scale frequency is 10 times faster than monolithic
V-to-F’s now available. The theory of operation is based on
the identity Q = CV.
Each time the circuit produces an output pulse, it feeds
back a fixed quantity of charge, Q, to a summing node, S.
The circuit’s input furnishes a comparison current at the
summing node. This difference current is integrated in
RELATED PARTS
PART NUMBER
LT1116
LT1394
LT1671
LT1711/LT1712
LT1713/LT1714
LT1715
LT1719/LT1720/LT1721 Single/Dual/Quad 4.5ns 3V/5V Comparators
20
* = 1% METAL FILM/10ppm/°C
BYPASS ALL ICs WITH 2.2µF ON
EACH SUPPLY DIRECTLY AT PINS
= 2N2369
= 74HC14
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
0V TO 10V
Figure 16. 1Hz to 10MHz V-to-F Converter. Linearity is Better Than 0.03% with 50ppm/∞C Drift
INPUT
U
●
DESCRIPTION
12ns Single Supply Ground-Sensing Comparator
7ns, UltraFast, Single Supply Comparator
60ns, Low Power, Single Supply Comparator
Single/Dual 4.5ns 3V/5V/±5V Rail-to-Rail Comparators Rail-to-Rail Inputs and Outputs
Single/Dual 7ns 3V/5V/±5V Rail-to-Rail Comparators
Dual 150MHz 4ns 3V/5V Comparator
FAX: [phone]
6MHz
TRIM
2k
U
10k*
IN
10k
Q2
–
+
= 12V) is provided. This
LTC1050
Q1
– 5V
●
W
5V
www.linear-tech.com
–
+
LT1122
A1
– 5V
(POLYSTYRENE)
8
68pF
150pF
0.02µF
15pF
5V
36k
100Ω
U
+
15V
10µF
1.2k
1k
1k
+
–
LT1016
5V
A2
5pF
– 5V
A1’s 68pF feedback capacitor. The amplifier controls the
circuit’s output pulse generator, closing feedback loop
around the integrating amplifier. To maintain the sum-
ming node at zero, the pulse generator runs at a frequency
that permits enough charge pumping to offset the input
signal. Thus, the output frequency is linearly related to the
input voltage.
To trim this circuit, apply 6.000V at the input and adjust the
2kW pot for 6.000MHz output. Next, excite the circuit with
a 10.000V input and trim the 20k resistor for 10.000MHz
output. Repeat these adjustments until both points are
fixed. Linearity of the circuit is 0.03%, with full-scale drift
of 50ppm/∞C. The LTC1050 chopper op amp servos the
integrator’s noninverting input and eliminates the need for
a zero trim. Residual zero point error is 0.05Hz/∞C.
1Hz TO 10MHz
OUTPUT
COMMENTS
Single Supply Version of LT1016, LT1016 Pinout and Functionality
6mA, 100MHz Data Rate, LT1016 Pinout and Functionality
450mA, Single Supply Comparator, LT1016 Pinout and Functionality
5mA per Comparator, Rail-to-Rail Inputs and Outputs
150MHz Toggle Rate, Independent Input/Output Supplies
4mA per Comparator, Ground-Sensing Rail-to-Rail Inputs and Outputs
10M
4.7µF
0.1µF
10MHz
TRIM
5V REF
20k
sn1016 1016fcs LT/TP 0601 1.5K REV C • PRINTED IN USA
15V
LT1010
A4
100k*
„ LINEAR TECHNOLOGY CORPORATION 1991
LT1006
15V
A3
2.2M*
+
–
100k*
6.8Ω
–15V
Q3
Q4
470Ω
LM134
LT1034-1.2V
LT1034-2.5V
1016 F16