LTC6360CMS8E#PBF Linear Technology, LTC6360CMS8E#PBF Datasheet

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LTC6360CMS8E#PBF

Manufacturer Part Number
LTC6360CMS8E#PBF
Description
Manufacturer
Linear Technology
Datasheet

Specifications of LTC6360CMS8E#PBF

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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LTC6360CMS8E#PBFLTC6360CMS8E
Manufacturer:
LT
Quantity:
10 000
Company:
Part Number:
LTC6360CMS8E#PBF
Manufacturer:
LINEAR/凌特
Quantity:
20 000
FeaTures
applicaTions
Typical applicaTion
n
n
n
n
n
n
n
n
n
n
n
0V TO 4V
Output Swings to True Zero on Single Supply
2.3nV/√Hz Noise Density
Fast Settling Time: 150ns, 16-Bit, 4V Step
110dB SNR in 3MHz Bandwidth
Low Distortion, HD
for 4V
Low Offset Voltage: 250µV Max
Low Power Shutdown: 350µA Max
3mm × 3mm 8-Pin DFN and 8-lead MSOP Packages
16-Bit and 18-Bit SAR ADC Driver
High Speed Buffer Amplifiers
Low Noise Signal Processing
V
IN
+
P-P
Output at 40kHz
+IN
–IN
+
LTC6360
2
SHDN
OUT
10
5V
= –103dBc and HD
330pF
ADC Driver
CPI
V
CHARGE
PUMP
CC
0.1µF
CPO
R ADC
0.1µF
V
DD
GND
3
1µF
5V
= –109dBc
10µF
ADC
5V
Very Low Noise Single-Ended
6360 TA01a
DescripTion
The LTC
speed amplifier suitable for driving SAR ADCs. The
LTC6360 features a total output noise of 2.3nV/√Hz
combined with 150ns settling time to 16-bit levels (A
While powered from a single 5V supply, the amplifier out-
put can swing to 0V while maintaining high linearity. This
is made possible with the inclusion of a very low noise
on-chip charge pump that generates a negative voltage
to bias the output stage of the amplifier, increasing the
allowable negative voltage swing.
The LTC6360 is available in a compact 3mm × 3mm,
8-pin leadless DFN package and an 8-pin MSOP package
with exposed pad and operates over a –40°C to 125°C
temperature range.
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
®
6360 is a very low noise, high precision, high
with True Zero Output
–100
–110
–120
–130
–140
–60
–70
–80
–90
0
f
V
IN
OUT
= 20kHz
Harmonic Distortion vs
= 0V TO V
1
Output Amplitude
SAR ADC Driver
P-P
HD2
V
2
OUT
HD3
(V
P-P
3
)
LTC6360
4
6360 TA01b
5
V
= 1).
1
6360f

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LTC6360CMS8E#PBF Summary of contents

Page 1

... DFN package and an 8-pin MSOP package with exposed pad and operates over a –40°C to 125°C temperature range. L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. 0.1µF 1µ ...

Page 2

... TAPE AND REEL LTC6360CDD#PBF LTC6360CDD#TRPBF LTC6360IDD#PBF LTC6360IDD#TRPBF LTC6360HDD#PBF LTC6360HDD#TRPBF LTC6360CMS8E#PBF LTC6360CMS8E#TRPBF LTC6360IMS8E#PBF LTC6360IMS8E#TRPBF LTC6360HMS8E#PBF LTC6360HMS8E#TRPBF 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. ...

Page 3

T Figure 1 for circuit configuration. SYMBOL PARAMETER V Input Offset Voltage (MS8E Input Offset Voltage (DD8 /∆T Offset Voltage Drift OS I Input Bias Current (at +IN, ...

Page 4

LTC6360 elecTrical characTerisTics temperature range, otherwise specifications are at T Figure 1 for circuit configuration. SYMBOL PARAMETER V SHDN Pin Input Voltage, Logic Low L V SHDN Pin Input Voltage, Logic High H I SHDN Pin Current, Logic High SHDNH ...

Page 5

Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. Note 2: Inputs are protected ...

Page 6

LTC6360 Typical perForMance characTerisTics see Figure 1 for circuit configuration. Input Bias Current vs Temperature –6 – –10 +IN –12 – –16 +IN –18 – –50 –25 75 100 TEMPERATURE (°C) ...

Page 7

Typical perForMance characTerisTics see Figure 1 for circuit configuration. Output Low Voltage vs Load Current 0 –0.1 –0.2 –0 125°C –0 25° –40°C A –0 LOAD ...

Page 8

LTC6360 Typical perForMance characTerisTics see Figure 1 for circuit configuration. Small Signal Step Response 2.10 2.00 1.95 1.90 200ns/DIV 6360 G24 Slew Rate vs Temperature 160 FILT RISING C = 330pF FILT 120 FALLING 100 80 60 ...

Page 9

FuncTions –IN (Pin 1): Inverting Amplifier Input. OUT (Pin 2): Output of Amplifier. V (Pin 3): Analog Power Supply. Normally connected supply. V (Pin 4): Digital Power Supply. Normally connected ...

Page 10

LTC6360 TesT circuiT 10 V SHDN 0.1µF + – – IN +IN SHDN CPI CPO LTC6360 + CHARGE PUMP – GND V V –IN OUT CC DD 6360 F01 R 0.1µF FILT 10 V OUT C FILT 330pF ...

Page 11

The LTC6360 is a low noise amplifier suitable for driving single-ended high performance successive approximation register (SAR) ADCs. The LTC6360 uses a single ampli- fier with negative charge pump topology as shown in the Block Diagram. The output can ...

Page 12

LTC6360 applicaTions inForMaTion Amplifier Characteristics Figure 5 shows a simplified schematic of the LTC6360’s amplifier. The input stage has NPN and PNP differential pairs operating in parallel. This topology allows the inputs to swing all the way from the negative ...

Page 13

Input bias current induced DC voltage offsets can be minimized by matching the parallel impedance the source impedance For example, in the G S typical application when the amplifier is configured as ...

Page 14

LTC6360 applicaTions inForMaTion The charge pump is capable of sinking up to 4.5mA of DC current with a typical DC output impedance of 30Ω. If more current is demanded of the charge pump, the volt- age at CPO will collapse ...

Page 15

The amount that the loop gain and subsequent bandwidth will be reduced is equal to this zero-pole ratio. For example, for 20dB of loop gain reduction (one decade bandwidth reduction), R should be made equal to 5Ω. FILT ...

Page 16

LTC6360 applicaTions inForMaTion caused by the switching of the ADC sampling capacitor. This momentarily disturbs the output of the amplifier as charge is transferred between amplifier and ADC. The amplifier must recover and settle from this load transient before the ...

Page 17

Lower value gain and feedback resistors, R result in lower output noise at the expense of increased distortion due to increased loading of the amplifier. External loading should not be less than 2kΩ to avoid de- grading distortion ...

Page 18

LTC6360 applicaTions inForMaTion V CC R11 30.1k R12 20k J1 SMA R1 + OPT 0805 *SEE TABLE BELOW FOR ALTERNATE VALUES DC MODE (SHOWN) AC MODE INSTALL INSTALL R3 = 1µF NOT INSTALL R13 = ...

Page 19

Figure 11. DC1639A Demoboard Layout LTC6360 6360 F11 19 6360f ...

Page 20

LTC6360 applicaTions inForMaTion Interfacing to High Voltage Signals Using the amplifier in the inverting configuration, with a fixed input common mode voltage, allows the input signal to traverse a swing beyond the LTC6360 supply rails. A practical application for the ...

Page 21

Low Noise, True Zero 1MΩ Photodiode Transimpedance Amplifier Figure 13 shows the LTC6360 applied as a transimped- ance amplifier. The LTC6360 charge pump drives the anode of the photodiode. The BF862 ultra low noise JFET (J1) acts as ...

Page 22

LTC6360 package DescripTion 3.5 ±0.05 1.65 ±0.05 2.10 ±0.05 (2 SIDES) 0.25 ± 0.05 RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS APPLY SOLDER MASK TO AREAS THAT ARE NOT SOLDERED PIN 1 TOP MARK (NOTE 6) 0.200 REF 22 DD Package ...

Page 23

... SHALL NOT EXCEED 0.254mm (.010") PER SIDE. 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 representa- tion that the interconnection of its circuits as described herein will not infringe on existing patent rights. ...

Page 24

... CPO CPI 10µ 4MHz BANDWIDTH RMS PHOTODIODE DARK CURRENT 6360 TA02 6360f LT 0711 • PRINTED IN USA  LINEAR TECHNOLOGY CORPORA TION 2010 ...

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