參數(shù)資料
型號: AD7904BRUZ-REEL
廠商: Analog Devices Inc
文件頁數(shù): 4/32頁
文件大?。?/td> 0K
描述: IC ADC 8BIT 4CH W/SEQ 16TSSOP
標準包裝: 2,500
位數(shù): 8
采樣率(每秒): 1M
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): 13.5mW
電壓電源: 單電源
工作溫度: -40°C ~ 85°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 個單端,單極
配用: EVAL-AD79X4CBZ-ND - BOARD EVALUATION FOR AD79X4CBZ
AD7904/AD7914/AD7924
Data Sheet
Rev. C | Page 12 of 32
TYPICAL PERFORMANCE CHARACTERISTICS
–10
–30
–50
–70
–90
–110
0
50
100
150
200
250
300
350
400
450
500
S
NR
(
d
B)
FREQUENCY (kHz)
4096 POINT FFT
AVDD = 5V
fSAMPLE = 1MSPS
fIN = 50kHz
SINAD = 71.147dB
THD = –87.229dB
SFDR = –90.744dB
03087-
004
Figure 4. AD7924 Dynamic Performance at 1 MSPS
75
70
65
60
55
10
100
1000
S
INAD
(
d
B)
INPUT FREQUENCY (kHz)
AVDD = VDRIVE = 2.7V
AVDD = VDRIVE = 3.6V
AVDD = VDRIVE = 4.75V
AVDD = VDRIVE = 5.25V
fSAMPLE = 1MSPS
TA = 25°C
RANGE = 0V TO REFIN
03087-
005
Figure 5. AD7924 SINAD vs. Analog Input Frequency for Various Supply
Voltages at 1 MSPS, SCLK = 20 MHz
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
0
1000
900
800
700
600
500
400
300
200
100
P
S
RR
(
d
B)
SUPPLY RIPPLE FREQUENCY (kHz)
AVDD = 5V
200mV p-p SINE WAVE ON AVDD
REFIN = 2.5V, 1F CAPACITOR
TA = 25°C
03087-
006
Figure 6. AD7924 PSRR vs. Supply Ripple Frequency (No Decoupling)
–50
–55
–60
–65
–70
–75
–80
–85
–90
10
100
1000
T
HD
(
d
B)
INPUT FREQUENCY (kHz)
AVDD = VDRIVE = 2.7V
AVDD = VDRIVE = 3.6V
AVDD = VDRIVE = 4.75V
AVDD = VDRIVE = 5.25V
fSAMPLE = 1MSPS
TA = 25°C
RANGE = 0V TO REFIN
03087-
007
Figure 7. AD7924 THD vs. Analog Input Frequency for Various Supply
Voltages at 1 MSPS
–50
–55
–60
–65
–70
–75
–80
–85
–90
10
100
1000
T
HD
(
d
B)
INPUT FREQUENCY (kHz)
RIN = 1000
RIN = 100
RIN = 50
RIN = 10
fSAMPLE = 1MSPS
TA = 25°C
RANGE = 0V TO REFIN
AVDD = 5.25V
03087-
008
Figure 8. AD7924 THD vs. Analog Input Frequency for Various Source
Impedances
1.0
–1.0
–0.8
–0.6
–0.4
–0.2
0
0.2
0.4
0.6
0.8
0
4096
3584
3072
2560
2048
1536
1024
512
INL
E
RRO
R
(
L
S
B)
CODE
TA = 25°C
AVDD = VDRIVE = 5V
03087-
009
Figure 9. AD7924 Typical INL
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