CONVERTER CHARACTERISTICS The l
參數(shù)資料
型號: LTC2226IUH#TRPBF
廠商: Linear Technology
文件頁數(shù): 22/28頁
文件大?。?/td> 0K
描述: IC ADC 12BIT 25MSPS SAMPL 32-QFN
標(biāo)準(zhǔn)包裝: 2,500
位數(shù): 12
采樣率(每秒): 25M
數(shù)據(jù)接口: 并聯(lián)
轉(zhuǎn)換器數(shù)目: 1
功率耗散(最大): 90mW
電壓電源: 單電源
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 32-WFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝: 32-QFN 裸露焊盤(5x5)
包裝: 帶卷 (TR)
輸入數(shù)目和類型: 1 個(gè)單端,雙極; 1 個(gè)差分,雙極
LTC2228/LTC2227/LTC2226
3
222876fb
CONVERTER CHARACTERISTICS The l denotes the specications which apply over the full operating
temperature range, otherwise specications are at TA = 25°C. (Note 4)
PARAMETER
CONDITIONS
LTC2228
LTC2227
LTC2226
UNITS
MIN
TYP
MAX
MIN
TYP
MAX
MIN
TYP
MAX
Resolution
(No Missing Codes)
l
12
Bits
Integral
Linearity Error
Differential Analog Input (Note 5)
l
–1.1
±0.3
1.1
–1
±0.3
1
–1
±0.3
1
LSB
Differential
Linearity Error
Differential Analog Input
l
–0.8
±0.15
0.8
–0.7
±0.15
0.7
–0.7
±0.15
0.7
LSB
Offset Error
(Note 6)
l
–12
±2
12
–12
±2
12
–12
±2
12
mV
Gain Error
External Reference
l
–2.5
±0.5
2.5
–2.5
±0.5
2.5
–2.5
±0.5
2.5
%FS
Offset Drift
±10
μV/°C
Full-Scale Drift
Internal Reference
±30
ppm/°C
External Reference
±5
ppm/°C
Transition Noise
SENSE = 1V
0.25
LSBRMS
ANALOG INPUT The l denotes the specications which apply over the full operating temperature range, otherwise
specications are at TA = 25°C. (Note 4)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VIN
Analog Input Range (AIN+ – AIN–)
2.7V < VDD < 3.4V (Note 7)
l
±0.5V to ±1V
V
VIN,CM
Analog Input Common Mode (AIN+ + AIN–)/2
Differential Input (Note 7)
Single-Ended Input (Note 7)
l
1
0.5
1.5
1.9
2
V
IIN
Analog Input Leakage Current
0V < AIN+, AIN– < VDD
l
–1
1
μA
ISENSE
SENSE Input Leakage
0V < SENSE < 1V
l
–3
3
μA
IMODE
MODE Pin Leakage
l
–3
3
μA
tAP
Sample-and-Hold Acquisition Delay Time
0
ns
tJITTER
Sample-and-Hold Acquisition Delay Time Jitter
0.2
psRMS
CMRR
Analog Input Common Mode Rejection Ratio
80
dB
Full Power Bandwidth
Figure 8 Test Circuit
575
MHz
DYNAMIC ACCURACY The l denotes the specications which apply over the full operating temperature range,
otherwise specications are at TA = 25°C. AIN = –1dBFS. (Note 4)
SYMBOL PARAMETER
CONDITIONS
LTC2228
LTC2227
LTC2226
UNITS
MIN
TYP
MAX
MIN
TYP
MAX
MIN
TYP
MAX
SNR
Signal-to-Noise Ratio
5MHz Input
71.3
71.4
dB
12.5MHz Input
l
70.2
71.2
dB
20MHz Input
l
70.1
71.3
dB
30MHz Input
l
70
71.3
dB
70MHz Input
71.3
71.1
70.9
dB
140MHz Input
71
70.7
70.6
dB
SFDR
Spurious Free
Dynamic Range
2nd or 3rd
Harmonic
5MHz Input
90
dB
12.5MHz Input
l
76
90
dB
20MHz Input
l
76
90
dB
30MHz Input
l
75
90
dB
70MHz Input
85
dB
140MHz Input
80
dB
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