参数资料
型号: AD7764BRUZ-REEL7
厂商: Analog Devices Inc
文件页数: 28/33页
文件大小: 0K
描述: IC ADC 24BIT S/D 312KSPS 28TSSOP
标准包装: 1,000
位数: 24
采样率(每秒): 312k
数据接口: 串行,SPI?
转换器数目: 1
功率耗散(最大): 371mW
电压电源: 模拟和数字
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 28-TSSOP(0.173",4.40mm 宽)
供应商设备封装: 28-TSSOP
包装: 带卷 (TR)
输入数目和类型: 1 个差分,单极;1 个差分,双极
AD7764
Rev. A | Page 3 of 32
SPECIFICATIONS
AVDD1 = DVDD = 2.5 V, AVDD2 = AVDD3 = AVDD4 = 5 V, VREF+ = 4.096 V, MCLK amplitude = 5 V, TA = 25°C, normal power mode, using
the on-chip amplifier with components, as shown in the Optimal row in Table 7, unless otherwise noted.1
Parameter
Table 2.
Test Conditions/Comments
Specification
Unit
DYNAMIC PERFORMANCE
Decimate 256×
Normal Power Mode
MCLK = 40 MHz, ODR = 78.125 kHz, f
IN = 1 kHz sine wave
Dynamic Range
Modulator inputs shorted
115
dB typ
110
dB min
Differential amplifier inputs shorted
113.4
dB typ
Signal-to-Noise Ratio (SNR)2
Input amplitude = 0.5 dB
109
dB typ
106
dB min
Spurious-Free Dynamic Range (SFDR)
Nonharmonic
130
dBFS typ
Total Harmonic Distortion (THD)
Input amplitude = 0.5 dB
105
dB typ
Input amplitude = 6 dB
103
dB typ
Input amplitude = 60 dB
71
dB typ
Low Power Mode
MCLK = 40 MHz, ODR = 78.125 kHz, f
IN = 1 kHz sine wave
Dynamic Range
Modulator inputs shorted
113
dB typ
110
dB min
Differential amplifier inputs shorted
112
dB typ
Signal-to-Noise Ratio (SNR)2
Input amplitude = 0.5 dB
109
dB typ
106
dB min
Total Harmonic Distortion (THD)
Input amplitude = 0.5 dB
105
dB typ
Input amplitude = 6 dB
111
dB typ
Input amplitude = 6 dB
100
dB max
Input amplitude = 60 dB
76
dB typ
Decimate 128×
Normal Power Mode
MCLK = 40 MHz, ODR = 156.25 kHz, f
IN = 1 kHz sine wave
Dynamic Range
Modulator inputs shorted
112
dB typ
108
dB min
Differential amplifier inputs shorted
110.4
dB typ
Signal-to-Noise Ratio (SNR)2
107
dB typ
105
dB min
Spurious-Free Dynamic Range (SFDR)
Nonharmonic
130
dBFS typ
Total Harmonic Distortion (THD)
Input amplitude = 0.5 dB
105
dB typ
Input amplitude = 6 dB
103
dB typ
Intermodulation Distortion (IMD)
Input amplitude = 6 dB, f
IN A = 50.3 kHz, fIN B = 47.3 kHz
Second-order terms
117
dB typ
Third-order terms
108
dB typ
Low Power Mode
MCLK = 40 MHz, ODR = 156.25 kHz, f
IN = 1 kHz sine wave
Dynamic Range
Modulator inputs shorted
110
dB typ
109
dB min
Differential amplifier inputs shorted
109
dB typ
Signal-to-Noise Ratio (SNR)2
Input amplitude = 0.5 dB
107
dB typ
105
dB min
Total Harmonic Distortion (THD)
Input amplitude = 0.5 dB
105
dB typ
Input amplitude = 6 dB
111
dB typ
Input amplitude = 6 dB
100
dB max
Intermodulation Distortion (IMD)
Input amplitude = 6 dB, f
IN A = 50.3 kHz, fIN B = 47.3 kHz
Second-order terms
134
dB typ
Third-order terms
110
dB typ
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