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| 型号： | AD7450ARZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 21/22页 |
| 文件大小： | 0K |
| 描述： | IC ADC 12BIT DIFF-IN 1MSPS 8SOIC |
| 标准包装： | 98 |
| 位数： | 12 |
| 采样率（每秒）： | 1M |
| 数据接口： | DSP，MICROWIRE?，QSPI?，串行，SPI? |
| 转换器数目： | 1 |
| 功率耗散（最大）： | 9.25mW |
| 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： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 管件 |
| 输入数目和类型： | 1 个差分，单极 |
| 配用： | EVAL-AD7450CBZ-ND - BOARD EVALUATION FOR AD7450 |
–8–
AD7450–Typical Performance Characteristics
FREQUENCY – kHz
SNR
–
dBs
0
–60
–120
050
500
100 150 200 250 300 350 400 450
–20
–40
–80
–100
8192 POINT FFT
f
SAMPLE = 1MSPS
f
IN = 300kHz
SINAD = 71.7dB
THD = –82.8dB
PK NOISE = –85.3dB
TPC 1. Dynamic Performance at
1 MSPS with VDD = 5 V
CODE
DNL
ERR
OR
–
LSB
1.0
0.4
–0.2
0.8
0.6
0.2
0
–0.4
–0.6
–0.8
–1.0
0
1024
2048
3072
4096
TPC 4. Typical Differential
Nonlinearity (DNL) VDD = 5 V
CODE
INL
ERR
OR
–
LSB
1.0
0.4
–0.2
0.8
0.6
0.2
0
–0.4
–0.6
–0.8
–1.0
0
1024
2048
3072
4096
TPC 7. Typical Integral
Nonlinearity (INL) VDD = 3 V
FREQUENCY – kHz
SNR
–
dBs
0
–60
–120
050
100
150
200
250
300
350
–20
–40
–80
–100
8192 POINT FFT
f
SAMPLE = 833kSPS
f
IN = 300kHz
SINAD = 70.2dB
THD = –82dB
PK NOISE = –87.1dB
TPC 2. Dynamic Performance at
833 kSPS with VDD = 3 V
CODE
DNL
ERR
OR
–
LSB
1.0
0.4
–0.2
0.8
0.6
0.2
0
–0.4
–0.6
–0.8
–1.0
0
1024
2048
3072
4096
TPC 5. Typical Differential
Nonlinearity (DNL) VDD = 3 V
1.0
0.5
0
–0.5
–1.0
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
C
HANGE
IN
DNL-LSB
VREF
POSITIVE DNL
NEGATIVE DNL
TPC 8. Change in DNL vs. Reference
Voltage VDD = 5 V
INPUT FREQUENCY – kHz
SINAD
–
dB
–63
–75
–69
–65
–67
–71
–73
10
100
1000
VDD = 4.75V
VDD = 2.7V
VDD = 3.3V
VDD = 5.25V
TPC 3. SINAD vs. Analog Frequency
for Various Supply Voltages
CODE
INL
ERR
OR
–
LSB
1.0
0.4
–0.2
0.8
0.6
0.2
0
–0.4
–0.6
–0.8
–1.0
0
1024
2048
3072
4096
TPC 6. Typical Integral
Nonlinearity (INL) VDD = 5 V
VREF
1.0
0.5
–1.0
0
–0.5
1.5
CHANGE
IN
DNL-LSB
0
0.6
1.2
1.8
2.4
POSITIVE DNL
NEGATIVE DNL
TPC 9. Change in DNL vs. Reference
Voltage VDD = 3.3 V*
(Default Conditions: TA = 25 C)
Rev. A
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