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LTC1418AIG#PBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30
LTC1418
1
1418fa
For more information www.linear.com/LTC1418
TYPICAL APPLICATION
FEATURES DESCRIPTION
Low Power, 14-Bit, 200ksps
ADC with Serial and Parallel I/O
The LTC
®
1418 is a low power, 200ksps, 14-bit A/D con-
verter. Data output is selectable for 14-bit parallel or serial
format. This versatile device can operate from a single 5V
or ±5V supply. An onboard high performance sample-and-
hold, a precision reference and internal timing minimize
external circuitry requirements. The low 15mW power
dissipation is made even more attractive with two user
selectable power shutdown modes.
The LTC1418 converts 0V to 4.096V unipolar inputs from
a single 5V supply and ±2.048V bipolar inputs from ±5V
supplies. DC specs include ±1.25LSB INL, ±1LSB DNL
and no missing codes over temperature. Outstanding AC
performance includes 82dB S/(N + D) and 94dB THD at
the Nyquist input frequency of 100kHz.
The flexible output format allows either parallel or serial
I/O. The SPI/MICROWIRE compatible serial I/O port can
operate as either master or slave and can support clock
frequencies from DC to 10MHz. A separate convert start
input and a data ready signal (BUSY) allow easy control
of conversion start and data transfer.
Low Power, 200kHz, 14-Bit Sampling A/D Converter
APPLICATIONS
n
Single Supply 5V or ±5V Operation
n
Sample Rate: 200ksps
n
±1.25LSB INL and ±1LSB DNL Max
n
Power Dissipation: 15mW (Typ)
n
Parallel or Serial Data Output
n
No Missing Codes Over Temperature
n
Power Shutdown: Nap and Sleep
n
External or Internal Reference
n
Differential High Impedance Analog Input
n
Input Range: 0V to 4.096V or ±2.048V
n
81.5dB S/(N + D) and –94dB THD at Nyquist
n
28-Lead SSOP Package
n
Remote Data Acquisition
n
Battery Operated Systems
n
Digital Signal Processing
n
Isolated Data Acquisition Systems
n
Audio and Telecom Processing
n
Medical Instrumentation
L, LT, LTC , LT M, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
Typical INL Curve
S/H
14
BUFFER
8k
10μF
10μF
REFCOMP
A
IN
–
A
IN
+
V
REF
4.096V
5V
LTC1418
14-BIT ADC
SELECTABLE
SERIAL/
PARALLEL
PORT
D13
DGND
1418 TA01
V
SS
(0V OR –5V)
AGND
SER/PAR
D5
D4 (EXTCLKIN)
D3 (SCLK)
D2 (CLKOUT)
D1 (D
OUT
)
D0 (EXT/INT)
V
DD
TIMING AND
LOGIC
2.5V
REFERENCE
BUSY
CS
RD
CONVST
SHDN
1μF
OUTPUT CODE
40960
–1.0
INL (LSBs)
–0.5
0
0.5
1.0
8192
1418 TA02
12288 16384
LTC1418
2
1418fa
For more information www.linear.com/LTC1418
PACKAGE/ORDER INFORMATIONABSOLUTE MAXIMUM RATINGS
Supply Voltage (V
DD
) .................................................6V
Negative Supply Voltage (V
SS
)
Bipolar Operation Only ............................. –6V to GND
Total Supply Voltage (V
DD
to V
SS
)
Bipolar Operation Only ......................................... 12V
Analog Input Voltage (Note 3)
Unipolar Operation ................... –0.3V to (V
DD
+ 0.3V)
Bipolar Operation ...........(V
SS
– 0.3V) to (V
DD
+ 0.3V)
Digital Input Voltage (Note 4)
Unipolar Operation ................................. –0.3V to 10V
Bipolar Operation .........................(V
SS
– 0.3V) to 10V
Digital Output Voltage
Unipolar Operation ................... –0.3V to (V
DD
+ 0.3V)
Bipolar Operation ...........(V
SS
– 0.3V) to (V
DD
+ 0.3V)
Power Dissipation
.............................................. 500mW
Operation Temperature Range
LTC1418C ................................................. 0°C to 70°C
LTC1418I .............................................. –40°C to 85°C
Storage Temperature Range
.................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec)
...................300°C
(Note 1, 2)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
TOP VIEW
G PACKAGE
28-LEAD PLASTIC SSOP
OBSOLETE PACKAGE
N PACKAGE
28-LEAD NARROW PDIP
28
27
26
25
24
23
22
21
20
19
18
17
16
15
A
IN
+
A
IN
–
V
REF
REFCOMP
AGND
D13 (MSB)
D12
D11
D10
D9
D8
D7
D6
DGND
V
DD
V
SS
BUSY
CS
CONVST
RD
SHDN
SER/PAR
D0 (EXT/INT)
D1 (D
OUT
)
D2 (CLKOUT)
D3 (SCLK)
D4 (EXTCLKIN)
D5
T
JMAX
= 110°C, θ
JA
= 95°C/W (G)
T
JMAX
= 110°C, θ
JA
= 100°C/W (N)
ORDER INFORMATION
LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC1418ACG#PBF LTC1418ACG#TRPBF 1418ACG 28-Lead Plastic SSOP 0°C to 70°C
LTC1418CG#PBF LTC1418CG#TRPBF 1418CG 28-Lead Plastic SSOP 0°C to 70°C
LTC1418AIG#PBF LTC1418AIG#TRPBF 1418AIG 28-Lead Plastic SSOP –40°C to 85°C
LTC1418IG#PBF LTC1418IG#TRPBF 1418IG 28-Lead Plastic SSOP –40°C to 85°C
OBSOLETE PACKAGE
LTC1418ACN#PBF LTC1418ACN#TRPBF 1418ACN 28-Lead PDIP 0°C to 70°C
LTC1418CN#PBF LTC1418CN#TRPBF 1418CN 28-Lead PDIP 0°C to 70°C
LTC1418AIN#PBF LTC1418AIN#TRPBF 1418AIN 28-Lead PDIP –40°C to 85°
C
LTC1418IN#PBF LTC1418IN#TRPBF 1418IN 28-Lead PDIP –40°C to 85°C
Consult LTC Marketing for parts specified with wider operating temperature ranges.
Consult LTC Marketing for information on nonstandard lead based finish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
LTC1418
3
1418fa
For more information www.linear.com/LTC1418
PARAMETER CONDITIONS
LTC1418 LTC1418A
UNITSMIN TYP MAX MIN TYP MAX
Resolution (No Missing Codes)
l
13 14 Bits
Integral Linearity Error (Note 7)
l
±0.8 ±2 ±0.5 ±1.25 LSB
Differential Linearity Error
l
±0.7 ±1.5 ±0.35 ±1 LSB
Offset Error (Note 8)
l
±5 ±20 ±2 ±10 LSB
Full-Scale Error Internal Reference
External Reference = 2.5V
±10
±5
±60
±30
±20
±5
±60
±15
LSB
LSB
Full-Scale Tempco I
OUT(REF)
= 0, Internal Reference, Commercial
I
OUT(REF)
= 0, Internal Reference, Industrial
I
OUT(REF)
= 0, External Reference
l
±15
±5
±10
±20
±1
±45 ppm/°C
ppm/°C
ppm/°C
CONVERTER CHARACTERISTICS
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. (Notes 5, 6)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
IN
Analog Input Range (Note 9) 4.75V ≤ V
DD
≤ 5.25V (Unipolar)
4.75V ≤ V
DD
≤ 5.25V, –5.25V ≤ V
SS
≤ –4.75V (Bipolar)
l
l
0 to 4.096
±2.048
V
V
I
IN
Analog Input Leakage Current CS = High
l
±1 µA
C
IN
Analog Input Capacitance Between Conversions (Sample Mode)
During Conversions (Hold Mode)
25
5
pF
pF
t
ACQ
Sample-and-Hold Acquisition Time Commercial
Industrial
l
l
300
300
1000
1000
ns
ns
ANALOG INPUT
DYNAMIC ACCURACY
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
S/(N + D) Signal-to-Noise Plus Distortion Ratio 97.5kHz Input Signal
l
79 81.5 dB
THD Total Harmonic Distortion 100kHz Input Signal, First 5 Harmonics
l
–94 –86 dB
SFDR Spurious Free Dynamic Range 100kHz Input Signal
l
86 95 dB
IMD Intermodulation Distortion f
IN1
= 97.7kHz, f
IN2
= 104.2kHz –90 dB
Full Power Bandwidth 5 MHz
Full Linear Bandwidth S/(N + D) ≥ 77dB 0.5 MHz
The l denotes the specifications which apply over the full operating temperature range, otherwise
specifications are at T
A
= 25°C. (Note 5)
The l denotes the specifications which apply over the full operating temperature range,
otherwise specifications are at T
A
= 25°C. (Note 5)
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30

LTC1418AIG#PBF

Mfr. #:
Buy LTC1418AIG#PBF
Manufacturer:
Analog Devices Inc.
Description:
Analog to Digital Converters - ADC L Pwr, 14-B, 200ksps ADC w/ Serial & Par
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
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