LTC2393CUK-16#TRPBF Linear Technology, LTC2393CUK-16#TRPBF Datasheet

IC ADC 16BIT SER/PAR 1M 48-QFN

LTC2393CUK-16#TRPBF

Manufacturer Part Number
LTC2393CUK-16#TRPBF
Description
IC ADC 16BIT SER/PAR 1M 48-QFN
Manufacturer
Linear Technology
Datasheet

Specifications of LTC2393CUK-16#TRPBF

Number Of Bits
16
Sampling Rate (per Second)
1M
Data Interface
Serial, Parallel
Number Of Converters
1
Power Dissipation (max)
175mW
Voltage Supply Source
Analog and Digital
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
48-WFQFN, Exposed Pad
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LTC2393CUK-16#TRPBFLTC2393CUK-16#PBF
Manufacturer:
Linear Technology
Quantity:
135
Company:
Part Number:
LTC2393CUK-16#TRPBFLTC2393CUK-16#PBF
Manufacturer:
LINEAR/凌特
Quantity:
20 000
Company:
Part Number:
LTC2393CUK-16#TRPBF
Manufacturer:
LINEAR/凌特
Quantity:
20 000
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APPLICATIONS
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TYPICAL APPLICATION
FEATURES
TO-DIFFERENTIAL
1Msps Throughput Rate
±2LSB INL (Max)
Guaranteed 16-Bit No Missing Codes
94.2dB SNR (Typ) at f
Guaranteed Operation to 125°C
Single 5V Supply
1.8V to 5V I/O Voltages
140mW Power Dissipation
±4.096V Differential Input Range
Internal Reference (20ppm/°C Max)
No Pipeline Delay, No Cycle Latency
Parallel and Serial Interface
Internal Conversion Clock
48-pin 7mm × 7mm LQFP and QFN Packages
Medical Imaging
High Speed Data Acquisition
Digital Signal Processing
Industrial Process Control
Instrumentation
ATE
SINGLE-ENDED-
ANALOG INPUT
0V TO 4.096V
LT6350
DRIVER
2200pF
249Ω
249Ω
IN
10μF
= 20kHz
IN
IN
+
VCM
0.1μF
REFIN
10μF
AVP
5V
REFOUT
10μF
1μF
CNVST PD
LTC2393-16
SAMPLE CLOCK
0.1μF
DVP
RESET
5V
GND
4.7μF
1.8V TO 5V
OVP
OGND
DESCRIPTION
The LTC
cessive approximation register (SAR) ADC. Operating
from a single 5V supply, the LTC2393-16 supports a large
±4.096V fully differential input range, making it ideal for
high performance applications which require maximum
dynamic range. The LTC2393-16 achieves ±2LSB INL max,
no missing codes at 16-bits and 94.2dB SNR (typ).
The LTC2393-16 includes a precision internal reference
with a guaranteed 0.5% initial accuracy and a ±20ppm/°C
(max) temperature coefficient. Fast 1Msps throughput with
no cycle latency in both parallel and serial interface modes
makes the LTC2393-16 ideally suited for a wide variety
of high speed applications. An internal oscillator sets the
conversion time, easing external timing considerations.
The LTC2393-16 dissipates only 140mW at 1Msps, while
both nap and sleep power-down modes are provided to
further reduce power during inactive periods.
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.
BYTESWAP
INTERFACE
PARALLEL
SERIAL
SER/PAR
OR
OB/2C
239316 TA01
BUSY
RD
®
CS
2393-16 is a low noise, high speed 16-bit suc-
16-Bit, 1Msps SAR ADC
16 BIT
–100
–140
–120
–180
–160
–20
–40
–60
–80
With 94dB SNR
0
0
16k Point FFT f
LTC2393-16
100
FREQUENCY (kHz)
f
IN
200
= 20kHz
S
300
= 1Msps,
SNR = 94.2dB
THD –105dB
SINAD = 93.9dB
SFDR = 108dB
400
239316 G08
239316f
1
500

Related parts for LTC2393CUK-16#TRPBF

LTC2393CUK-16#TRPBF Summary of contents

Page 1

... The LTC2393-16 dissipates only 140mW at 1Msps, while both nap and sleep power-down modes are provided to further reduce power during inactive periods. 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 ...

Page 2

... PLASTIC QFN = 125°C, θ 29°C/W JMAX JA EXPOSED PAD (PIN 49) IS GND, MUST BE SOLDERED TO PCB ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL LTC2393CUK-16#PBF LTC2393CUK-16#TRPBF LTC2393IUK-16#PBF LTC2393IUK-16#TRPBF LEAD FREE FINISH TRAY LTC2393CLX-16#PBF LTC2393CLX-16#PBF LTC2393ILX-16#PBF LTC2393ILX-16#PBF LTC2393HLX-16#PBF LTC2393HLX-16#PBF Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container. ...

Page 3

ANALOG INPUT l The denotes the specifications which apply over the full operating temperature range, otherwise specifications are 25°C. (Note 4) A SYMBOL PARAMETER + + V Absolute Input Range ( – – V Absolute ...

Page 4

LTC2393-16 INTERNAL REFERENCE CHARACTERISTICS operating temperature range, otherwise specifications are at T PARAMETER V Output Voltage REF V Output Tempco REF V Output Impedance REF External Reference Voltage REFIN Input Impedance V Line Regulation REF VCM Output Voltage DIGITAL INPUTS ...

Page 5

TIMING CHARACTERISTICS range, otherwise specifications are at T SYMBOL PARAMETER f Sampling Frequency SMPL t Conversion Time CONV t Acquisition Time ACQ CNVST Low Time t 4 CNVST High Time t 5 CNVST↓ to BUSY Delay RESET ...

Page 6

LTC2393-16 TYPICAL PERFORMANCE CHARACTERISTICS Integral Nonlinearity vs Output Code 2.0 1.5 1.0 0.5 0 –0.5 –1.0 –1.5 –2.0 0 16384 32768 49152 65536 OUTPUT CODE 239316 G01 DC Histogram (Internal Reference) 2000000 1800000 1600000 1400000 1200000 1000000 800000 600000 400000 ...

Page 7

TYPICAL PERFORMANCE CHARACTERISTICS SNR, SINAD vs Input Frequency 96 SNR 94 SINAD 100 125 150 175 FREQUENCY (kHz) 239316 G10 THD, Harmonics 20kHz IN vs Temperature ...

Page 8

LTC2393-16 PIN FUNCTIONS GND (Pins 20, 35, 41, 44, 48, Exposed Pad Pin 49 (QFN Only)): Ground. All GND pins must be con- nected to a solid ground plane. Exposed pad must be soldered directly to the ...

Page 9

PIN FUNCTIONS D15 (Pin 28): Data Bit 15. When SER/PAR = 0 this pin is Bit 15 of the parallel port data output bus. The data format is determined by the logic level of OB/2C. BUSY (Pin 29): Busy Output. ...

Page 10

LTC2393-16 FUNCTIONAL BLOCK DIAGRAM LTC2393- – IN REFIN REFOUT VCM TIMING DIAGRAMS CS CNVST BUSY D[15:0] CS CNVST BUSY SCLK SDOUT 10 AVP DVP OVP 16-BIT SAMPLING ADC 16-BIT 1x BUFFER 4.096V ...

Page 11

APPLICATIONS INFORMATION OVERVIEW The LTC2393- low noise, high speed 16-bit suc- cessive approximation register (SAR) ADC. Operating from a single 5V supply, the LTC2393-16 supports a large ±4.096V fully differential input range, making it ideal for high performance ...

Page 12

LTC2393-16 APPLICATIONS INFORMATION INPUT DRIVE CIRCUITS A low impedance source can directly drive the high imped- ance inputs of the LTC2393-16 without gain error. A high impedance source should be buffered to minimize settling time during acquisition and to optimize ...

Page 13

APPLICATIONS INFORMATION Internal Reference To use the internal reference, simply tie the REFOUT and REFIN pins together. This connects the 4.096V output of the internal reference to the input of the internal reference buffer. The output impedance of the internal ...

Page 14

LTC2393-16 APPLICATIONS INFORMATION Signal-to-Noise Ratio (SNR) The signal-to-noise ratio (SNR) is the ratio between the RMS amplitude of the fundamental input frequency and the RMS amplitude of all other frequency components except the first five harmonics and DC. Figure 5 ...

Page 15

APPLICATIONS INFORMATION will finish and then the device will power down. The data from that conversion can be read after PD = low is applied. In this mode power consumption drops to a typical value of 175μW from 140mW. This ...

Page 16

LTC2393-16 APPLICATIONS INFORMATION Parallel Modes The parallel output data interface is active when the SER/PAR pin is tied low and when both CS and RD are low. The output data can be read as a 16-bit word as shown in ...

Page 17

APPLICATIONS INFORMATION CS RD BUSY DATA BUS D[15:0] CNVST, RD BUSY DATA BUS D[15:0] Figure 10. Read the Parallel Data During the Conversion CS, RD BYTESWAP Hi-Z D[15:8] Figure 11. 8-Bit Parallel Interface Using the BYTESWAP Pin Hi-Z Hi-Z CURRENT ...

Page 18

LTC2393-16 APPLICATIONS INFORMATION BUSY SCLK SDOUT Hi-Z (ADC 2) SDIN (ADC BUSY SCLK Hi-Z SDOUT (ADC 2) SDIN (ADC 2) CNVST IN SCLK IN Figure 12. Serial Interface with ...

Page 19

APPLICATIONS INFORMATION RESET CVNST DATA BUS D[15: ACQ Hi-Z Figure 13. RESET Pin Timing LTC2393-16 239316 F13 239316f 19 ...

Page 20

LTC2393-16 APPLICATIONS INFORMATION BOARD LAYOUT To obtain the best performance from the LTC2393-16, a printed circuit board (PCB) is recommended. Layout for the printed circuit board should ensure the digital and analog signal lines are separated as much as possible. ...

Page 21

APPLICATIONS INFORMATION Partial Layer 1 Component Side Partial Top Silkscreen Partial Layer 2 Ground Plane LTC2393-16 239316f 21 ...

Page 22

LTC2393-16 PACKAGE DESCRIPTION 5.15 0.05 5.15 0.05 0.25 0.05 0.50 BSC RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS APPLY SOLDER MASK TO AREAS THAT ARE NOT SOLDERED 7.00 0.10 (4 SIDES) PIN 1 TOP MARK (SEE NOTE 6) NOTE: 1. DRAWING ...

Page 23

... SHALL NOT EXCEED 0.25mm ON ANY SIDE, IF PRESENT 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

... Low Noise Voltage: 0.95nV/√Hz (100kHz), Low Distortion: –80dB at 1MHz, TSOT23-6 Package Rail-to-Rail Input and Outputs, 240ns 0.01% Settling Time www.linear.com ● 5V – LTC2393- 239316 TA03 Noise (0.1Hz to 10Hz) in MSOP-8 Package P-P , Settling Time: 900ns P-P LT 0110 • PRINTED IN USA © LINEAR TECHNOLOGY CORPORATION 2010 239316f ...

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