参数资料
型号: AD7266BSUZ
厂商: Analog Devices Inc
文件页数: 2/29页
文件大小: 0K
描述: IC ADC 12BIT 3CH 2MSPS 32-TQFP
设计资源: AD7266 SAR ADC in DC-Coupled Differential and Single-Ended Appls (CN0039)
标准包装: 1
位数: 12
采样率(每秒): 2M
数据接口: DSP,MICROWIRE?,QSPI?,串行,SPI?
转换器数目: 2
功率耗散(最大): 33.6mW
电压电源: 模拟和数字
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 32-TQFP
供应商设备封装: 32-TQFP(7x7)
包装: 托盘
输入数目和类型: 12 个单端,单极;6 个差分,单极;6 个伪差分,单极
产品目录页面: 777 (CN2011-ZH PDF)
AD7266
Rev. B | Page 9 of 28
TYPICAL PERFORMANCE CHARACTERISTICS
TA = 25°C, unless otherwise noted.
04603-003
SUPPLY RIPPLE FREQUENCY (kHz)
2000
0
200
400
600
800 1000 1200 1400 1600 1800
P
S
RR
(dB)
–60
–70
–80
–90
–100
–110
–120
100mV p-p SINE WAVE ON AVDD
NO DECOUPLING
SINGLE-ENDED MODE
EXTERNAL REFERENCE
INTERNAL REFERENCE
Figure 4. PSRR vs. Supply Ripple Frequency Without Supply Decoupling
04603-004
NOISE FREQUENCY (kHz)
1000
0
100
200
300
400
500
600
800
700
900
IS
OLATION
(dB)
–50
–55
–60
–65
–70
–75
–90
–95
–80
–85
–100
VDD = 5V
Figure 5. Channel-to-Channel Isolation
04603-005
INPUT FREQUENCY (kHz)
3000
0
1000
2000
500
1500
2500
S
INAD
(dB)
74
72
68
70
66
62
64
60
VDD = 5V
DIFFERENTIAL MODE
VDD = 3V
DIFFERENTIAL MODE
RANGE = 0 TO VREF
Figure 6. SINAD vs. Analog Input Frequency for Various Supply Voltages
04
60
3-
0
06
FREQUENCY (kHz)
1000
0
100
200
300
400
500
600
700
800
900
(dB
)
–10
–30
–50
–70
–90
–110
4096 POINT FFT
VDD = 5V, VDRIVE = 3V
FSAMPLE = 2MSPS
FIN = 52kHz
SINAD = 71.4dB
THD = –84.42dB
DIFFERENTIAL MODE
Figure 7. FFT
04603-007
CODE
4000
0
1000
2000
3000
3500
500
1500
2500
DNL
E
RROR
(LS
B
)
1.0
0.6
0.8
0.2
0.4
–0.2
0
–0.6
–0.8
–0.4
–1.0
VDD = 5V, VDRIVE = 3V
DIFFERENTIAL MODE
Figure 8. Typical DNL
04603-008
CODE
4000
0
500
1000
1500
2000
2500
3000
3500
INL
E
RROR
(LS
B
)
1.0
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
–1.0
VDD = 5V, VDRIVE = 3V
DIFFERENTIAL MODE
Figure 9. Typical INL
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