V
參數(shù)資料
型號(hào): AD7322BRUZ-REEL7
廠商: Analog Devices Inc
文件頁數(shù): 4/37頁
文件大?。?/td> 0K
描述: IC ADC 12BIT+ SAR 2CHAN 14TSSOP
標(biāo)準(zhǔn)包裝: 1,000
位數(shù): 12
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): 30mW
電壓電源: 雙 ±
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 14-TSSOP(0.173",4.40mm 寬)
供應(yīng)商設(shè)備封裝: 14-TSSOP
包裝: 帶卷 (TR)
輸入數(shù)目和類型: 2 個(gè)單端,單極;2 個(gè)單端,雙極;1 個(gè)差分,單極;1 個(gè)差分,雙極
配用: EVAL-AD7322CBZ-ND - BOARD EVALUATION FOR AD7322
Data Sheet
AD7322
Rev. B | Page 11 of 36
8k
0
–3
CODE
NUM
BE
R
O
F
O
C
CURRE
NCE
S
7k
6k
5k
4k
3k
2k
1k
–2
–1
0
1
2
3
VCC = 5V
VDD/VSS = ±12V
RANGE = ±10V
10k SAMPLES
TA = 25°C
023
1201
7600
1165
11
0
04
86
3-
01
4
Figure 16. Histogram of Codes, Single-Ended Mode
–50
–100
0
RIPPLE FREQUENCY (kHz)
CM
RR
(
d
B)
–55
–60
–65
–70
–75
–80
–85
–90
–95
200
400
600
800
1000
1200
DIFFERENTIAL MODE
fIN = 50kHz
VDD/VSS = ±12V
fS = 1MSPS
TA = 25°C
VCC = 5V
VCC = 3V
0
48
63
-05
5
Figure 17. CMRR vs. Common-Mode Ripple Frequency
2.0
–2.0
±VDD/VSS SUPPLY VOLTAGE (V)
DN
L
E
RRO
R
(
L
S
B)
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
5
7
9
11
13
15
17
19
±5V RANGE
VCC =VDRIVE =5V
INTERNAL REFERENCE
SINGLE-ENDED MODE
DNL = 750kSPS
DNL = 500kSPS
DNL = 1MSPS
04
86
3-
0
49
Figure 18. DNL Error vs. Supply Voltage at 500 kSPS, 750 kSPS, and 1 MSPS
2.0
–2.0
±VDD/VSS SUPPLY VOLTAGE (V)
INL
E
RRO
R
(
L
S
B)
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
5
7
9
11
13
15
17
19
±5V RANGE
VCC =VDRIVE =5V
INTERNAL REFERENCE
SINGLE-ENDED MODE
INL = 750kSPS
INL = 500kSPS
INL = 1MSPS
INL = 750kSPS
INL = 500kSPS
INL = 1MSPS
04
86
3-
0
50
Figure 19. INL Error vs. Supply Voltage at 500 kSPS, 750 kSPS, and 1 MSPS
–50
–100
0
1200
SUPPLY RIPPLE FREQUENCY (kHz)
P
S
RR
(
d
B)
–55
–60
–65
–70
–75
–80
–85
–90
–95
200
400
600
800
1000
100mV p-p SINE WAVE ON EACH SUPPLY
NO DECOUPLING
SINGLE-ENDED MODE
fS =1MSPS
VCC =5V
VCC =3V
VDD =12V
VSS =–12V
04
86
3-
0
54
Figure 20. PSRR vs. Supply Ripple Frequency Without Supply Decoupling
10
1000
ANALOG INPUT FREQUENCY (kHz)
T
HD
(
d
B)
100
–50
–55
–60
–65
–70
–75
–80
–85
–90
–95
VCC =VDRIVE =5V
VDD/VSS = ±12V
TA =25°C
INTERNAL REFERENCE
RANGE = ±10V AND ±2.5V
RIN =50,
±2.5V RANGE
RIN =50,
±10V RANGE
RIN =100,
±2.5V RANGE
RIN =1000,
±2.5V RANGE
RIN =2000,
±2.5V RANGE
RIN =4700,
±2.5V RANGE
RIN = 2000, ±10V RANGE
RIN = 1000, ±10V RANGE
RIN = 100, ±10V RANGE
04
86
3-
01
5
Figure 21. THD vs. Analog Input Frequency for Various Source Impedances,
True Differential Mode
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