參數(shù)資料
型號(hào): AD7923BRUZ-REEL
廠商: Analog Devices Inc
文件頁(yè)數(shù): 23/24頁(yè)
文件大?。?/td> 0K
描述: IC ADC 12BIT 4CH W/SEQ 16TSSOP
標(biāo)準(zhǔn)包裝: 2,500
位數(shù): 12
采樣率(每秒): 200k
數(shù)據(jù)接口: DSP,MICROWIRE?,QSPI?,串行,SPI?
轉(zhuǎn)換器數(shù)目: 1
功率耗散(最大): 7.5mW
電壓電源: 單電源
工作溫度: -40°C ~ 125°C
安裝類型: 表面貼裝
封裝/外殼: 16-TSSOP(0.173",4.40mm 寬)
供應(yīng)商設(shè)備封裝: 16-TSSOP
包裝: 帶卷 (TR)
輸入數(shù)目和類型: 4 個(gè)單端,單極
配用: EVAL-AD7923CBZ-ND - BOARD EVAL FOR AD7923
AD7923
Data Sheet
Rev. D | Page 8 of 24
TYPICAL PERFORMANCE CHARACTERISTICS
FREQUENCY (kHz)
SNR
(dB)
–10
–50
–30
–70
–90
–110
0
10
20
30
40
60
70
80
90
50
100
03096-004
4096 POINT FFT
AVDD = 4.75V
fSAMPLE = 200kSPS
fIN = 50 kHz
SINAD = 70.714dB
THD = –82.853dB
SFDR = –84.815dB
Figure 4. Dynamic Performance at 200 kSPS
INPUT FREQUENCY (kHz)
SINAD
(dB)
75
70
65
60
0
100
03086-005
fSAMPLE = 200kSPS
TA = 25°C
RANGE = 0V TO REFIN
AVDD = VDRIVE = 5.25V
AVDD = VDRIVE = 4.75V
AVDD = VDRIVE = 3.6V
AVDD = VDRIVE = 2.7V
Figure 5. SINAD vs. Analog Input Frequency for Various Supply Voltages at
200 kSPS
SUPPLY RIPPLE FREQUENCY (kHz)
PSRR
(dB)
0
–90
–80
–70
–60
–50
–40
–30
–20
–10
0
20
40
60
80
100
120
140
160
180
200
03086-006
AVDD = 5V
200mV p-p SINE WAVE ON AVDD
REFIN = 2.5V, 1F CAPACITOR
TA = 25°C
Figure 6. PSRR vs. Supply Ripple Frequency
INPUT FREQUENCY (kHz)
THD
(dB)
–50
–90
–85
–80
–75
–70
–65
–60
–55
10
100
03086-007
fSAMPLE = 200kSPS
TA = 25°C
RANGE = 0V TO REFIN
AVDD = VDRIVE = 5.25V
AVDD = VDRIVE = 4.75V
AVDD = VDRIVE = 2.7V
AVDD = VDRIVE = 3.6V
Figure 7. THD vs. Analog Input Frequency
for Various Supply Voltages at 200 kSPS
INPUT FREQUENCY (kHz)
THD
(dB)
–55
–95
–90
–85
–80
–75
–70
–65
–60
10
100
03086-008
fSAMPLE = 200kSPS
TA = 25°C
AVDD = 5.25V
RANGE = 0V TO REFIN
RIN = 100
RIN = 1000
RIN = 10
RIN = 50
Figure 8. THD vs. Analog Input Frequency for Various Source Impedances
CODE
INL
ERROR
(LSB)
1.0
0.6
0.8
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
–1.0
0
512
1024
1536
2048
2560
3072
3584
4096
03096-009
AVDD = VDRIVE = 5V
TEMP = 25
°C
Figure 9. Typical INL
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