参数资料
型号: LTC2249IUH#TRPBF
厂商: Linear Technology
文件页数: 18/24页
文件大小: 0K
描述: IC ADC 14BIT 80MSPS LP 32-QFN
标准包装: 2,500
位数: 14
采样率(每秒): 80M
数据接口: 并联
转换器数目: 1
功率耗散(最大): 258mW
电压电源: 单电源
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 32-WFQFN 裸露焊盘
供应商设备封装: 32-QFN 裸露焊盘(5x5)
包装: 带卷 (TR)
输入数目和类型: 1 个单端,双极; 1 个差分,双极
LTC2249
3
2249fa
The
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
73
dB
40MHz Input
70.8
73
dB
70MHz Input
73
dB
140MHz Input
72.6
dB
SFDR
Spurious Free Dynamic Range
5MHz Input
90
dB
2nd or 3rd Harmonic
40MHz Input
75
90
dB
70MHz Input
90
dB
140MHz Input
85
dB
SFDR
Spurious Free Dynamic Range
5MHz Input
95
dB
4th Harmonic or Higher
40MHz Input
81
95
dB
70MHz Input
95
dB
140MHz Input
90
dB
S/(N+D)
Signal-to-Noise Plus Distortion Ratio
5MHz Input
72.9
dB
40MHz Input
70.2
72.8
dB
70MHz Input
72.8
dB
140MHz Input
72.1
dB
IMD
Intermodulation Distortion
fIN1 = 28.2MHz, fIN2 = 26.8MHz
90
dB
Full Power Bandwidth
Figure 8 Test Circuit
575
MHz
DY A IC ACCURACY
U
W
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VCM Output Voltage
IOUT = 0
1.475
1.500
1.525
V
VCM Output Tempco
±25
ppm/
°C
VCM Line Regulation
2.7V < VDD < 3.4V
3
mV/V
VCM Output Resistance
–1mA < IOUT < 1mA
4
I TER AL REFERE CE CHARACTERISTICS
UU
U
(Note 4)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VIN
Analog Input Range (AIN+ – AIN–)
2.7V < VDD < 3.4V (Note 7)
±0.5 to ±1V
VIN,CM
Analog Input Common Mode (AIN
+ + AIN–)/2
Differential Input (Note 7)
1
1.5
1.9
V
Single Ended Input (Note 7)
0.5
1.5
2
V
IIN
Analog Input Leakage Current
0V < AIN+, AIN– < VDD
–1
1
A
ISENSE
SENSE Input Leakage
0V < SENSE < 1V
–3
3
A
IMODE
MODE Pin Leakage
–3
3
A
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
A ALOG I PUT
U
The
denotes the specifications which apply over the full operating temperature range, otherwise
specifications are at TA = 25°C. (Note 4)
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