参数资料
型号: AFE7222IRGCT
厂商: Texas Instruments
文件页数: 11/106页
文件大小: 0K
描述: IC AFE 12BIT 65/130MSPS 64VQFN
标准包装: 1
位数: 12
通道数: 4
功率(瓦特): 610mW
电压 - 电源,模拟: 2.85 V ~ 3.6 V
电压 - 电源,数字: 1.7 V ~ 1.9 V
封装/外壳: 64-VFQFN 裸露焊盘
供应商设备封装: 64-VQFN 裸露焊盘(9x9)
包装: 标准包装
其它名称: 296-30113-6
SLOS711B – NOVEMBER 2011 – REVISED MARCH 2012
3.6
RX ADC ELECTRICAL CHARACTERISTICS
Typical values at TA = 25°C, full temperature range is TMIN = –40°C to TMAX = 85°C, supplies at nominal voltages, 50% clock
duty cycle, LVDS output interface, –1dBFS differential input, unless otherwise noted.
AFE7222
AFE7225
PARAMETER
TEST CONDITIONS
UNIT
MIN
TYP
MAX
MIN
TYP
MAX
Maximum Clock Rate
65
125 MSPS
Resolution
12
bits
ANALOG INPUTS
Differential input range
2
Vpp
VCM
Common mode output voltage
0.95
V
Input resistance (DC)
Differential
>1
M
Ω
Input capacitance
Differential
4
pF
Analog input bandwidth
550
MHz
CMRR Common mode rejection ratio
Fin = 10MHz
40
dB
DYNAMIC ACCURACY
No Missing Codes,
DNL
Differential linearity error
–0.95
±0.5
1.4
–0.95
±0.5
1.4
LSB
Fin =10MHz
INL
Integral linearity error
Fin = 10MHz
–1.7
±0.2
1.7
–1.7
±0.2
1.7
LSB
Offset error
–15
2
15
–15
3
15
mV
Offset temperature co-efficient
>0.005
mV/°C
Gain error as a result of internal reference
–2.5
2.5
–2.5
2.5
%FS
inaccuracy alone – EGREF
Gain error of channel alone – EGCHAN
±1
%FS
DYNAMIC AC CHARACTERISTICS
Fin = 10MHz
67.5
70.5
67
70.7
dBFS
SNR
Signal-to-noise ratio(1)
Fin = 70MHz
70
70.1
dBFS
Fin = 140MHz
68.7
69.5
dBFS
Fin = 10MHz
73
85
73
84
dBc
SFDR
Spurious free dynamic range(1)
Fin = 70MHz
81
79
dBc
Fin = 140MHz
77
76
dBc
(1)
Up to 65MSPS typical SNR and SFDR performance in CMOS interface is same as with LVDS interface.
12
ELECTRICAL SPECIFICATIONS
Copyright 2011–2012, Texas Instruments Incorporated
Product Folder Link(s): AFE7222 AFE7225
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