DataSheet.jp


Datasheet LTC2377-16 PDF ( 特性, スペック, ピン接続図 )

部品番号 LTC2377-16
部品説明 Low Power SAR ADC
メーカ Linear Technology
ロゴ Linear Technology ロゴ 
プレビュー
Total 24 pages
		
11

No Preview Available !

LTC2377-16 Datasheet, LTC2377-16 PDF,ピン配置, 機能
Features
n 500ksps Throughput Rate
n ±0.5LSB INL (Max)
n Guaranteed 16-Bit No Missing Codes
n Low Power: 6.8mW at 500ksps, 6.8µW at 500sps
n 97dB SNR (Typ) at fIN = 2kHz
n123dB THD (Typ) at fIN = 2kHz
n Digital Gain Compression (DGC)
n Guaranteed Operation to 125°C
n 2.5V Supply
n Fully Differential Input Range ±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
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.
LTC2377-16
16-Bit, 500ksps, Low Power
SAR ADC with 97dB SNR
Description
The LTC®2377-16 is a low noise, low power, high speed
16-bit successive approximation register (SAR) ADC.
Operating from a 2.5V supply, the LTC2377-16 has a
±VREF fully differential input range with VREF ranging from
2.5V to 5.1V. The LTC2377-16 consumes only 6.8mW and
achieves ±0.5LSB INL maximum, no missing codes at 16
bits with 97dB SNR.
The LTC2377-16 has a high speed SPI-compatible se-
rial interface that supports 1.8V, 2.5V, 3.3V and 5V logic
while also featuring a daisy-chain mode. The fast 500ksps
throughput with no cycle latency makes the LTC2377-16
ideally suited for a wide variety of high speed applications.
An internal oscillator sets the conversion time, easing exter-
nal timing considerations. The LTC2377-16 automatically
powers down between conversions, leading to reduced
power dissipation that scales with the sampling rate.
The LTC2377-16 features a unique digital gain compres-
sion (DGC) function, which eliminates the driver amplifier’s
negative supply while preserving the full resolution of the
ADC. When enabled, the ADC performs a digital scaling
function that maps zero-scale code from 0V to 0.1 • VREF
and full-scale code from VREF to 0.9 • VREF. For a typical
reference voltage of 5V, the full-scale input range is now
0.5V to 4.5V, which provides adequate headroom for
powering the driving amplifier from a single 5.5V supply.
Typical Application
2.5V 1.8V TO 5V
10µF
0.1µF
VREF
0V
VREF
0V
+
20Ω
6800pF
VDD OVDD CHAIN
IN+
RDL/SDI
SDO
3300pF
LTC2377-16
SCK
20Ω
IN
6800pF
REF
BUSY
CNV
GND REF/DGC
2.5V TO 5.1V
237716 TA01
47µF
(X5R, 0805 SIZE)
SAMPLE CLOCK
VREF
32k Point FFT fS = 500ksps, fIN = 2kHz
0 SNR = 97.2dB
–20 THD = –123dB
SINAD = 97.2dB
–40 SFDR = 126dB
–60
–80
–100
–120
–140
–160
–180
0
50 100 150 200 250
FREQUENCY (kHz)
237716 TA02
237716f
1

1 Page



LTC2377-16 pdf, ピン配列
LTC2377-16
E lectrical Characteristics 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
VIN+
VIN
VIN+ – VIN
VCM
Absolute Input Range (IN+)
Absolute Input Range (IN)
Input Differential Voltage Range
Common-Mode Input Range
(Note 5)
(Note 5)
VIN = VIN+ – VIN
l –0.05
l –0.05
l –VREF
l VREF/2–
0.1
VREF/2
VREF + 0.05
VREF + 0.05
+VREF
VREF/2+
0.1
V
V
V
V
IIN Analog Input Leakage Current
CIN Analog Input Capacitance
Sample Mode
Hold Mode
l ±1 µA
45 pF
5 pF
CMRR
Input Common Mode Rejection Ratio
fIN = 250kHz
86 dB
C onverter Characteristics 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
Resolution
l 16
Bits
No Missing Codes
l 16
Bits
Transition Noise
INL Integral Linearity Error
(Note 6)
l –0.5
0.15
±0.2
LSBRMS
0.5 LSB
DNL Differential Linearity Error
l –0.5 ±0.1
0.5
LSB
BZE Bipolar Zero-Scale Error
(Note 7)
l –4
0
4
LSB
Bipolar Zero-Scale Error Drift
1 mLSB/°C
FSE Bipolar Full-Scale Error
(Note 7)
l –13
±2
13
LSB
Bipolar Full-Scale Error Drift
±0.05
ppm/°C
Dynamic Accuracy The l denotes the specifications which apply over the full operating temperature range,
otherwise specifications are at TA = 25°C and AIN = –1dBFS. (Notes 4, 8)
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX UNITS
SINAD Signal-to-(Noise + Distortion) Ratio
SNR Signal-to-Noise Ratio
THD Total Harmonic Distortion
fIN = 2kHz, VREF = 5V
l 94.6
97
fIN = 2kHz, VREF = 5V, (H-Grade)
l 94.5
97
fIN = 2kHz, VREF = 5V
fIN = 2kHz, VREF = 5V, REF/DGC = GND
fIN = 2kHz, VREF = 2.5V
l 95.3
l 94.5
l 92.1
97
96.4
95
fIN = 2kHz, VREF = 5V, (H-Grade)
l 95.2
fIN = 2kHz, VREF = 5V, REF/DGC = GND, (H-Grade) l 94.3
fIN = 2kHz, VREF = 2.5V, (H-Grade)
l 91.8
97
96.4
95
fIN = 2kHz, VREF = 5V
l –123 –103
ffIINN
=
=
2kHz,
2kHz,
VVRREEFF
=
=
5V, REF/DGC
2.5V
=
GND
l
l
–125 –101
–122 –103
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
SFDR
Spurious Free Dynamic Range
–3dB Input Bandwidth
fIN = 2kHz, VREF = 5V
l 104
124
34
dB
MHz
Aperture Delay
500 ps
Aperture Jitter
4 ps
Transient Response
Full-Scale Step
1.46 µs
237716f
3


3Pages


LTC2377-16 電子部品, 半導体
LTC2377-16
Typical Performance Characteristics TA = 25°C, VDD = 2.5V, OVDD = 2.5V, VCM = 2.5V,
REF = 5V, fSMPL = 500ksps, unless otherwise noted.
Integral Nonlinearity
vs Output Code
1.0
0.8
0.6
0.4
0.2
0.0
–0.2
–0.4
–0.6
–0.8
–1.0
0
16384 32768 49152 65536
OUTPUT CODE
237716 G01
Differential Nonlinearity
vs Output Code
0.5
0.4
0.3
0.2
0.1
0.0
–0.1
–0.2
–0.3
–0.4
–0.5
0
16384 32768 49152 65536
OUTPUT CODE
237716 G02
DC Histogram
140000
120000
σ = 0.15
100000
80000
60000
40000
20000
0
32676
32677
32678
CODE
32679 32680
237716 G03
32k Point FFT fS = 500ksps,
fIN = 2kHz
0 SNR = 97.2dB
–20 THD = –123dB
SINAD = 97.2dB
–40 SFDR = 126dB
–60
–80
–100
–120
–140
–160
–180
0
50 100 150 200 250
FREQUENCY (kHz)
237716 G04
SNR, SINAD vs Input Frequency
98.0
97.5 SNR
97.0
96.5
SINAD
96.0
95.5
95.0
94.5
94.0
93.5
93.0
0
25 50 75 100 125 150 175 200
FREQUENCY (kHz)
237716 G05
THD, Harmonics
vs Input Frequency
–80
–90
THD
2ND
3RD
–100
–110
–120
–130
–140
0
25 50 75 100 125 150 175 200
FREQUENCY (kHz)
237716 G06
SNR, SINAD vs Input level,
fIN = 2kHz
98.0
97.5
SNR
97.0 SINAD
96.5
96.0
–40
–30 –20 –10
0
INPUT LEVEL (dB)
237716 G07
SNR, SINAD vs Reference
Voltage, fIN = 2kHz
98.0
97.5
97.0
96.5 SNR
SINAD
96.0
95.5
95.0
94.5
94.0
2.5
3.0 3.5 4.0 4.5 5.0
REFERENCE VOLTAGE (V)
237716 G08
THD, Harmonics vs Reference
Voltage, fIN = 2kHz
–100
–105
–110
–115
–120
–125
–130
–135
THD
3RD
2ND
–140
–145
–150
2.5
3.0 3.5 4.0 4.5 5.0
REFERENCE VOLTAGE (V)
237716 G09
237716f
6

6 Page





ページ 合計 : 24 ページ
PDF
ダウンロード
[ LTC2377-16.PDF ]

共有リンク

Link :

おすすめデータシート

部品番号部品説明メーカ
LTC2377-16

There is a function of Low Power SAR ADC.

Linear Technology
Linear Technology
LTC2377-18

There is a function of Low Power SAR ADC.

Linear
Linear

多くを見つけるデータシート

部品番号部品説明メーカ
82S129

The 82S126 and 82S129 are field programmable, which means that custom patterns are immediately available by following the Signetics Generic fusing procedure. 1K-bit TTL Bipolar PROM, Address access time : 50ns max.

NXP
NXP
D1695

This part is a darlington connection NPN silicon epitaxial transistor. The 2SD1695 is a Darlington connection transistor and incorporates a dumper diode between the collector and emitter and a constant voltage diode and protection elements between the collector and base. This transistor is ideal for drives in solenoid and actuators.

NEC
NEC
FDMS86368

N-Channel Power Trench, 80V, 80A, 4.5mΩ.

Fairchild
Fairchild
2SC2456

Here is a Color TV Horizontal Driver, Vceo=300V, TO-126 Package.

Toshiba
Toshiba

www.DataSheet.jp    |   2018   |  メール    |   最新    |   Sitemap