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부품번호 | LTC2364-16 기능 |
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기능 | Pseudo-Differential Unipolar SAR ADC | ||
제조업체 | Linear | ||
로고 | |||
전체 24 페이지수
FEATURES
n 250ksps Throughput Rate
n ±0.75LSB INL (Max)
n Guaranteed 16-Bit No Missing Codes
n Low Power: 3.4mW at 250ksps, 3.4µW at 250sps
n 94.7dB SNR (Typ) at fIN = 2kHz
n –120dB THD (Typ) at fIN = 2kHz
n Guaranteed Operation to 125°C
n 2.5V Supply
n Pseudo-Differential Unipolar Input Range: 0V to VREF
n VREF Input Range from 2.5V to 5.1V
n No Pipeline Delay, No Cycle Latency
n 1.8V to 5V I/O Voltages
n SPI-Compatible Serial I/O with Daisy-Chain Mode
n Internal Conversion Clock
n 16-Lead MSOP and 4mm × 3mm DFN Packages
APPLICATIONS
n Medical Imaging
n High Speed Data Acquisition
n Portable or Compact Instrumentation
n Industrial Process Control
n Low Power Battery-Operated Instrumentation
n ATE
LTC2364-16
16-Bit, 250ksps, Pseudo-
Differential Unipolar SAR
ADC with 94.7dB SNR
DESCRIPTION
The LTC®2364-16 is a low noise, low power, high speed
16-bit successive approximation register (SAR) ADC.
Operating from a 2.5V supply, the LTC2364-16 has a 0V
to VREF pseudo-differential unipolar input range with VREF
ranging from 2.5V to 5.1V. The LTC2364-16 consumes
only 3.4mW and achieves ±0.75LSB INL maximum, no
missing codes at 16 bits with 94.7dB SNR.
The LTC2364-16 has a high speed SPI-compatible serial
interface that supports 1.8V, 2.5V, 3.3V and 5V logic
while also featuring a daisy-chain mode. The fast 250ksps
throughput with no cycle latency makes the LTC2364-16
ideally suited for a wide variety of high speed applications.
An internal oscillator sets the conversion time, easing exter-
nal timing considerations. The LTC2364-16 automatically
powers down between conversions, leading to reduced
power dissipation that scales with the sampling rate.
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and
SoftSpan is a trademark of Linear Technology Corporation. All other trademarks are the
property of their respective owners. Protected by U.S. Patents, including 7705765.
TYPICAL APPLICATION
2.5V 1.8V TO 5V
VREF
0V
+
LT®6202
–
10µF
0.1µF
10Ω
IN+
VDD
OVDD
CHAIN
RDL/SDI
10nF
LTC2364-16
SDO
SCK
IN– BUSY
REF GND CNV
2.5V TO 5.1V
236416 TA01a
47µF
(X5R, 0805 SIZE)
SAMPLE CLOCK
32k Point FFT fS = 250ksps, fIN = 2kHz
0 SNR = 94.7dB
–20 THD = –121dB
SINAD = 94.7dB
–40 SFDR = 125dB
–60
–80
–100
–120
–140
–160
–180
0
25 50 75 100 125
FREQUENCY (kHz)
236416 TA01b
236416fa
1
LTC2364-16
REFERENCE INPUT The l denotes the specifications which apply over the full operating temperature range, otherwise
specifications are at TA = 25°C. (Note 4)
SYMBOL PARAMETER
CONDITIONS
MIN TYP
MAX UNITS
VREF Reference Voltage
IREF Reference Input Current
(Note 5)
(Note 9)
l 2.5
l
0.12
5.1
0.2
V
mA
D IGITAL INPUTS AND DIGITAL OUTPUTS The l denotes the specifications which apply over the
full operating temperature range, otherwise specifications are at TA = 25°C. (Note 4)
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX UNITS
VIH High Level Input Voltage
l 0.8 • OVDD
V
VIL Low Level Input Voltage
l
0.2 • OVDD
V
IIN Digital Input Current
VIN = 0V to OVDD
l –10
10 µA
CIN Digital Input Capacitance
5 pF
VOH High Level Output Voltage
IO = –500µA
l OVDD – 0.2
V
VOL Low Level Output Voltage
IO = 500µA
l
0.2 V
IOZ Hi-Z Output Leakage Current
VOUT = 0V to OVDD
l –10
10 µA
ISOURCE Output Source Current
VOUT = 0V
–10 mA
ISINK Output Sink Current
VOUT = OVDD
10 mA
POWER REQUIREMENTS The l denotes the specifications which apply over the full operating temperature
range, otherwise specifications are at TA = 25°C. (Note 4)
SYMBOL PARAMETER
CONDITIONS
MIN TYP
MAX UNITS
VDD
OVDD
IVDD
IOVDD
IIPPDD
Supply Voltage
Supply Voltage
Supply Current
Supply Current
Power Down Mode
Power Down Mode
250ksps Sample Rate
250ksps Sample Rate (CL = 20pF)
Conversion
Conversion
Done
Done
((IIVVDDDD
+
+
IIOOVVDDDD
+
+
IIRREEFF,,
VVRREEFF
>
>
2V)
2V,
H-Grade)
l
l
l
l
l
2.375
1.71
2.5
1.36
0.1
0.9
0.9
2.625
5.25
1.7
90
140
V
V
mA
mA
µA
µA
PD
Power Dissipation
Power Down Mode
250ksps Sample Rate
Conversion Done (IVDD + IOVDD + IREF, VREF > 2V)
Power Down Mode
Conversion Done (IVDD + IOVDD + IREF, VREF > 2V, H-Grade)
3.4 4.25 mW
2.25 225
µW
2.25 315
µW
A DC TIMING CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. (Note 4)
SYMBOL
fSMPL
tCONV
tACQ
tHOLD
tCYC
tCNVH
tBUSYLH
tCNVL
tQUIET
PARAMETER
Maximum Sampling Frequency
Conversion Time
Acquisition Time
Maximum Time Between Acquisitions
Time Between Conversions
CNV High Time
CNV↑ to BUSY Delay
Minimum Low Time for CNV
SCK Quiet Time from CNV↑
CONDITIONS
tACQ = tCYC – tHOLD (Note 10)
CL = 20pF
(Note 11)
(Note 10)
MIN
l
l 1.9
l 3.460
l
l4
l 20
l
l 20
l 20
TYP
MAX UNITS
250 ksps
3 µs
µs
540 ns
µs
ns
13 ns
ns
ns
236416fa
4
4페이지 LTC2364-16
T YPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, VDD = 2.5V, OVDD = 2.5V, REF = 5V,
fSMPL = 250ksps, unless otherwise noted.
SNR, SINAD vs Temperature,
fIN = 2kHz
96.0
THD, Harmonics vs Temperature,
fIN = 2kHz
–110
INL/DNL vs Temperature
1.0
95.5
SNR
95.0
SINAD
94.5
94.0
93.5
–115
–120
–125
–130
–135
–140
THD
0.5
2ND
MAX INL
MAX DNL
0 MIN DNL
3RD MIN INL
–0.5
93.0
–55 –35 –15 5 25 45 65 85 105 125
TEMPERATURE (°C)
236416 G10
Full-Scale Error vs Temperature
10
8
6
4
2
0
–2
–4
–6
–8
–10
–55 –35 –15 5 25 45 65 85 105 125
TEMPERATURE (°C)
236416 G13
–145
–55 –35 –15 5 25 45 65 85 105 125
TEMPERATURE (°C)
236416 G11
Offset Error vs Temperature
4
3
2
1
0
–1
–2
–3
–4
–55 –35 –15 5 25 45 65 85 105 125
TEMPERATURE (°C)
236416 G14
–1.0
–55 –35 –15 5 25 45 65 85 105 125
TEMPERATURE (°C)
236416 G12
Supply Current vs Temperature
1.4
1.2 IVDD
1.0
0.8
0.6
0.4
0.2 IREF IOVDD
0
–55 –35 –15 5 25 45 65 85 105 125
TEMPERATURE (°C)
236416 G15
Shutdown Current vs Temperature
45 IVDD + IOVDD + IREF
40
35
30
25
20
15
10
5
0
–55 –35 –15 5 25 45 65 85 105 125
TEMPERATURE (°C)
236416 G16
CMRR vs Input Frequency
100
95
90
85
80
75
70
0 25 50 75 100 125
FREQUENCY (kHz)
236416 G17
Reference Current
vs Reference Voltage
0.20
0.15
0.10
0.05
0
2.5
3 3.5 4 4.5
REFERENCE VOLTAGE (V)
5
236416 G18
236416fa
7
7페이지 | |||
구 성 | 총 24 페이지수 | ||
다운로드 | [ LTC2364-16.PDF 데이터시트 ] |
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구매 문의 | 일반 IC 문의 : 샘플 및 소량 구매 ----------------------------------------------------------------------- IGBT, TR 모듈, SCR 및 다이오드 모듈을 포함한 광범위한 전력 반도체를 판매합니다. 전력 반도체 전문업체 상호 : 아이지 인터내셔날 사이트 방문 : [ 홈페이지 ] [ 블로그 1 ] [ 블로그 2 ] |
부품번호 | 상세설명 및 기능 | 제조사 |
LTC2364-16 | Pseudo-Differential Unipolar SAR ADC | Linear |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |