參數(shù)資料
型號: LTC2259CUJ-12#TRPBF
廠商: LINEAR TECHNOLOGY CORP
元件分類: ADC
英文描述: 1-CH 12-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQCC40
封裝: 6 X 6 MM, LEAD FREE, PLASTIC, QFN-40
文件頁數(shù): 6/32頁
文件大?。?/td> 790K
代理商: LTC2259CUJ-12#TRPBF
LTC2261-12
LTC2260-12/LTC2259-12
14
226112fa
PIN FUNCTIONS
PINS THAT ARE THE SAME FOR ALL DIGITAL OUTPUT
MODES
AIN+ (Pin 1): Positive Differential Analog Input.
AIN– (Pin 2): Negative Differential Analog Input.
GND (Pin 3): ADC Power Ground.
REFH (Pins 4, 5): ADC High Reference. Bypass to Pins
6, 7 with a 2.2μF ceramic capacitor and to ground with a
0.1μF ceramic capacitor.
REFL (Pins 6, 7): ADC Low Reference. Bypass to Pins
4, 5 with a 2.2μF ceramic capacitor and to ground with a
0.1μF ceramic capacitor.
PAR/SER (Pin 8): Programming Mode Selection Pin. Con-
nect to ground to enable the serial programming mode.
CS, SCK, SDI, SDO become a serial interface that control
the A/D operating modes. Connect to VDD to enable the
parallel programming mode where CS, SCK, SDI become
parallel logic inputs that control a reduced set of the A/D
TYPICAL PERFORMANCE CHARACTERISTICS
LTC2259-12: IVDD vs Sample Rate,
5MHz Sine Wave Input, –1dB
LTC2259-12: IOVDD vs Sample Rate,
5MHz Sine Wave Input, –1dB, 5pF
on Each Data Output
LTC2259-12: SNR vs SENSE,
fIN = 5MHz, –1dB
SAMPLE RATE (Msps)
0
25
10
15
20
5
0
45
30
35
40
I OVDD
(mA)
20
40
60
80
226112 G54
1.75mA LVDS
1.8V CMOS
1.2V CMOS
3.5mA LVDS
SAMPLE RATE (Msps)
0
50
35
40
45
55
I VDD
(mA)
20
40
60
80
226112 G53
LVDS OUTPUTS
CMOS OUTPUTS
SENSE PIN (V)
0.6
71
68
69
70
67
66
72
SNR
(dBFS)
0.7
0.8
0.9
1.1
1.2
1.3
1.0
226112 G55
LTC2259-12: SFDR vs Input Level,
fIN = 70MHz, 2V Range, 80Msps
INPUT LEVEL (dBFS)
–80
60
50
40
30
20
10
0
80
70
SFDR
(dBc
AND
dBFS)
90
100
110
–70 –60 –50 –40 –30 –20 –10
0
226112 G52
dBFS
dBc
相關(guān)PDF資料
PDF描述
LTC2259CUJ-12#PBF 1-CH 12-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQCC40
LTC2260IUJ-12#TRPBF 1-CH 12-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQCC40
LTC2260IUJ-12#PBF 1-CH 12-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQCC40
LTC2260CUJ-12#TRPBF 1-CH 12-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQCC40
LTC2260CUJ-12#PBF 1-CH 12-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQCC40
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