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LTC2246H の電気的特性と機能

LTC2246HのメーカーはLinear Technologyです、この部品の機能は「ADC」です。


製品の詳細 ( Datasheet PDF )

部品番号
LTC2246H
部品説明
ADC
メーカ
Linear Technology
ロゴ

Linear Technology ロゴ 




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LTC2246H Datasheet, LTC2246H PDF,ピン配置, 機能
FEATURES
n Sample Rate: 25Msps
n –40°C to 125°C Operation
n Single 3V Supply (2.8V to 3.5V)
n Low Power: 75mW
n 74.5dB SNR
n 90dB SFDR
n No Missing Codes
n Flexible Input: 1VP-P to 2VP-P Range
n 575MHz Full Power Bandwidth S/H
n Clock Duty Cycle Stabilizer
n Shutdown and Nap Modes
n Pin Compatible Family
LTC2246H (14-Bit), LTC2226H (12-Bit)
n 48-Pin (7mm × 7mm) LQFP Package
APPLICATIONS
n Automotive
n Industrial
n Wireless and Wired Broadband Communication
LTC2246H
14-Bit, 25Msps
125°C ADC In LQFP
DESCRIPTION
The LTC®2246H is a 14-bit 25Msps, low power 3V A/D
converter designed for digitizing high frequency, wide
dynamic range signals. The LTC2246H is perfect for
demanding imaging and communications applications
with AC performance that includes 74.5dB SNR and 90dB
SFDR.
DC specs include ±1LSB INL (typ), ±0.5LSB DNL (typ)
and no missing codes over temperature. The transition
noise is a low 1LSBRMS.
A single 3V supply allows low power operation. A separate
output supply allows the outputs to drive 0.5V to 3.6V
logic.
A single-ended CLK input controls converter operation. An
optional clock duty cycle stabilizer allows high performance
at full speed for a wide range of clock duty cycles.
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.
TYPICAL APPLICATION
REFH
REFL
ANALOG
INPUT
FLEXIBLE
REFERENCE
+
INPUT
S/H
CLOCK/DUTY
CYCLE
CONTROL
CLK
14-BIT
PIPELINED
ADC CORE
CORRECTION
LOGIC
OUTPUT
DRIVERS
OVDD
D13
D0
OGND
2246H TA01
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
0
Typical INL, 2V Range
4096
8192
CODE
12288 16384
2246H TA01b
2246hfb
1

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LTC2246H pdf, ピン配列
LTC2246H
ANALOG INPUT The l denotes the specifications which apply over the full operating temperature range, otherwise
specifications are at TA = 25°C. (Note 4)
SYMBOL
VIN
VIN, CM
IIN
ISENSE
IMODE
tAP
tJITTER
CMRR
PARAMETER
Analog Input Range (AIN+ – AIN–)
CONDITIONS
2.8V < VDD < 3.5V (Note 7)
Analog Input Common Mode (AIN+ + AIN–)/2
Analog Input Leakage Current
SENSE Input Leakage
MODE Pin Leakage
Sample-and-Hold Acquisition Delay Time
Sample-and-Hold Acquisition Delay Time Jitter
Analog Input Common Mode Rejection Ratio
Differential Input (Note 7)
Single Ended Input (Note 7)
0V < AIN+, AIN– < VDD
0V < SENSE < 1V
MIN TYP MAX
l ±0.5V to
±1V
l1
1.5 1.9
l 0.5
1.5
2
l –10
10
l –10
10
l –10
10
0
0.2
80
UNITS
V
V
V
μA
μA
μA
ns
psRMS
dB
DYNAMIC ACCURACY The l denotes the specifications which apply over the full operating temperature range,
otherwise specifications are at TA = 25°C. AIN = –1dBFS. (Note 4)
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX UNITS
SNR Signal-to-Noise Ratio
5MHz Input
12.5MHz Input
70MHz Input
l 72
74.5
74.2
73.4
dB
dB
dB
SFDR
Spurious Free Dynamic Range
2nd or 3rd Harmonic
5MHz Input
12.5MHz Input
70MHz Input
l 74
90
90
85
dB
dB
dB
SFDR
Spurious Free Dynamic Range
4th Harmonic or Higher
5MHz Input
12.5MHz Input
70MHz Input
l 78
90
90
90
dB
dB
dB
S/(N+D) Signal-to-Noise Plus Distortion Ratio
5MHz Input
12.5MHz Input
70MHz Input
l 71.5
74.5
74.2
73.4
dB
dB
dB
IMD Intermodulation Distortion
fIN1 = 4.3MHz, fIN2 = 4.6MHz
90 dB
INTERNAL REFERENCE CHARACTERISTICS TA = 25°C. (Note 4)
PARAMETER
VCM Output Voltage
VCM Output Tempco
VCM Line Regulation
VCM Output Regulation
CONDITIONS
IOUT = 0
2.8V < VDD < 3.5V
–1mA < IOUT < 1mA
MIN
1.475
TYP
1.500
±25
3
4
MAX
1.525
UNITS
V
ppm/°C
mV/V
Ω
DIGITAL 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
LOGIC INPUTS (CLK, OE, SHDN)
CONDITIONS
MIN TYP MAX UNITS
VIH High Level Input Voltage
VDD = 3V
l2
V
VIL Low Level Input Voltage
IIN Input Current
CIN Input Capacitance
VDD = 3V
VIN = 0V to VDD
(Note 7)
l 0.8
l –10
10
3
V
μA
pF
2246hfb
3


3Pages


LTC2246H 電子部品, 半導体
LTC2246H
TYPICAL PERFORMANCE CHARACTERISTICS
8192 Point 2-Tone FFT,
fIN = 10.9MHz and 13.8MHz,
–1dB, 2V Range, 25Msps
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
0 2 4 6 8 10 12
FREQUENCY (MHz)
2246H G07
Grounded Input Histogram,
25Msps
25000
22016
20000
18803
15000
13373
10000
6919
5000
3227
43 853
0
278
8179 8180 8181 8182 8183 8184 8185 8186
CODE
2246H G08
SFDR vs Input Frequency, –1dB,
2V Range, 25Msps
100
95
90
85
80
75
70
65
0 50 100 150 200
INPUT FREQUENCY (MHz) 2246H G10
SNR and SFDR vs Sample Rate,
2V Range, fIN = 5MHz, –1dB
110
100
SFDR
90
80
SNR
70
60
0
10 20 30 40 50
SAMPLE RATE (Msps)
2246H G11
SFDR vs Input Level, fIN = 5MHz,
2V Range, 25Msps
120
110
100 dBFS
90
80 dBc
70
60 90dBc SFDR
REFERENCE LINE
50
40
30
20
–60
–50 –40 –30 –20 –10 0
INPUT LEVEL (dBFS)
2246H G13
IVDD vs Sample Rate, 5MHz Sine
Wave Input, –1dB
35
30
2V RANGE
25
1V RANGE
20
15
0 5 10 15 20 25 30 35
SAMPLE RATE (Msps)
2246H G14
6
SNR vs Input Frequency, –1dB,
2V Range, 25Msps
75
74
73
72
71
70
0 50 100 150 200
INPUT FREQUENCY (MHz) 2246H G09
SNR vs Input Level, fIN = 5MHz,
2V Range, –1dB
80
70 dBFS
60
50
dBc
40
30
20
10
0
–60 –50 –40 –30 –20 –10
0
INPUT LEVEL (dBFS)
2246H G12
IOVDD vs Sample Rate, 5MHz Sine
Wave Input, –1dB, OVDD = 1.8V
3
2
1
0
0 5 10 15 20 25 30 35
SAMPLE RATE (Msps)
2246H G15
2246hfb

6 Page

合計 : 18 ページ
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[ LTC2246H データシート.PDF ]

データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。

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部品番号部品説明メーカ
LTC2246

(LTC2246 - LTC2248) 65/40/25Msps Low Power 3V ADCs

Linear Technology
Linear Technology
LTC2246H

ADC

Linear Technology
Linear Technology

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