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參數資料
| 型號： | AD7724AST |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | ADC |
| 英文描述： | Dual CMOS Modulators |
| 中文描述： | 2-CH 1-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PQFP48 |
| 封裝： | PLASTIC, LQFP-48 |
| 文件頁數： | 8/14頁 |
| 文件大小： | 552K |
| 代理商： | AD7724AST |
REV. A
AD7724
(AVDD = DVDD = 5.0 V, T
A
= 25
8
C; CLKIN = 13 MHz ac-coupled sine wave, AIN = 20 kHz, Bipolar Mode; V
IN
(+) = 0 V to 2.5 V, V
IN
(–) = 1.25 V
unless otherwise noted)
–8–
INPUT LEVEL – dB
d
110
100
50–40
–30
0
–20
–10
90
80
70
60
SFDR
S/(N+D)
Figure 5. S/(N+D) and SFDR vs.
Analog Input Level
INPUT FREQUENCY – kHz
d
–85
–90
–1150
20
100
40
60
80
–95
–100
–105
–110
THD
SNR
SFDR
V
IN
(+) = V
IN
(–) = 1.25V p-p
V
CM
= 2.5V
Figure 8. SNR, THD, and SFDR vs.
Input Frequency
TEMPERATURE – °C
d
–94
–116
–50
–25
100
0
25
50
75
–96
–108
–110
–112
–114
–100
–102
–106
–104
–98
THD
3RD
4TH
2ND
Figure 11. THD vs. Temperature
–Typical Performance Characteristics
OUTPUT DATA RATE – kSPS
d
84
92
85
88
89
90
91
86
87
0
50
300
100
150
200
250
AIN = 1/5
·
BW
Figure 6. S/(N+D) vs. Output Sample
Rate
OUTPUT DATA RATE – kSPS
d
84
92
85
88
89
90
91
86
87
0
50
300
100
150
200
250
AIN = 1/5
·
BW
V
IN
(+) = V
IN
(–) = 1.25V p-p
V
CM
= 2.5V
Figure 9. S/(N+D) vs. Output Sample
Rate
CODES
F
5000
0
n–3
n–2
n+3
n–1
n
n+1
n+2
4500
2000
1500
1000
500
4000
3500
2500
3000
V
IN
(+) = V
IN
(–)
CLKIN = 13MHz
8k SAMPLES
Figure 12. Histogram of Output Codes
with DC Input
INPUT FREQUENCY – kHz
d
–85
–90
–1150
20
100
40
60
80
–95
–100
–105
–110
SNR
SFDR
THD
Figure 7. SNR, THD, and SFDR vs.
Input Frequency
TEMPERATURE – °C
92.0
91.5
88.0
–50
0
100
50
90.0
89.5
88.5
89.0
91.0
90.5
d
Figure 10. SNR vs. Temperature
CODE
D
1.0
0.8
–1.0
0
20000
65535
40000
–0.4
–0.8
–0.6
0
–0.2
0.6
0.2
0.4
Figure 13. Differential Nonlinearity
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PDF描述 |
|---|---|
| AD7724 | Dual CMOS Modulators |
| AD7725 | 16-Bit 900 kSPS ADC with a Programmable Postprocessor |
| AD7725BS | 16-Bit 900 kSPS ADC with a Programmable Postprocessor |
| AD7729 | Dual Sigma-Delta ADC with Auxiliary DAC |
| AD7729AR | Dual Sigma-Delta ADC with Auxiliary DAC |
相關代理商/技術參數 |
參數描述 |
|---|---|
| AD7724AST-REEL | 制造商:Analog Devices 功能描述:ADC Dual Delta-Sigma 30Msps 15-bit Serial 48-Pin LQFP T/R |
| AD7724ASTZ | 功能描述:IC MOD SIGMA-DELTA DUAL 48LQFP RoHS:是 類別:集成電路 (IC) >> 數據采集 - ADCs/DAC - 專用型 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:50 系列:- 類型:數據采集系統（DAS） 分辨率（位）:16 b 采樣率（每秒）:21.94k 數據接口:MICROWIRE?，QSPI?，串行，SPI? 電壓電源:模擬和數字 電源電壓:1.8 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤 供應商設備封裝:40-TQFN-EP（6x6） 包裝:托盤 |
| AD7724ASTZ-REEL | 功能描述:IC MOD SIGMA-DELTA DUAL 48LQFP RoHS:是 類別:集成電路 (IC) >> 數據采集 - ADCs/DAC - 專用型 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:50 系列:- 類型:數據采集系統（DAS） 分辨率（位）:16 b 采樣率（每秒）:21.94k 數據接口:MICROWIRE?，QSPI?，串行，SPI? 電壓電源:模擬和數字 電源電壓:1.8 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤 供應商設備封裝:40-TQFN-EP（6x6） 包裝:托盤 |
| AD7725 | 制造商:AD 制造商全稱:Analog Devices 功能描述:16-Bit 900 kSPS ADC with a Programmable Postprocessor |
| AD7725BS | 制造商:Analog Devices 功能描述:ADC Single Delta-Sigma 900ksps 16-bit Parallel/Serial 44-Pin MQFP 制造商:Rochester Electronics LLC 功能描述:16-BIT PROGRAMMABLE SIGMA-DELTA ADC I.C. - Bulk 制造商:Analog Devices 功能描述:IC 16BIT ADC SMD 7725 MQFP44 |
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