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參數(shù)資料
| 型號(hào)： | AD7482BST |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | ADC |
| 英文描述： | 1.5Gbps Serial ATA-Compatible Mux/Buffer with Loopback and Equalization |
| 中文描述： | 1-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, PARALLEL ACCESS, PQFP48 |
| 封裝： | PLASTIC, MS-026BBC, LQFP-48 |
| 文件頁(yè)數(shù)： | 8/16頁(yè) |
| 文件大小： | 1498K |
| 代理商： | AD7482BST |
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REV. 0
–8–
AD7482
220
BIAS
VOLTAGE
1
2
3
4
5
6
7
8
AD8021
–
50
AC
SIGNAL
220
10pF
–V
S
+V
S
+
V
IN
10pF
Figure 2. Analog Input Circuit Used for 1 MHz Input Tone
For higher input bandwidth applications, Analog Devices
’
AD8021 op amp (also available as a dual AD8022) is the
recommended choice to drive the AD7482. Figure 2 shows
the analog input circuit used to obtain the data for the FFT
plot shown in TPC 2. A bipolar analog signal is applied to
the terminal shown and biased up with a stable, low noise dc
voltage connected as shown. A 10 pF compensation capacitor
is connected between Pin 5 of the AD8021 and the negative
supply. As with the previous circuit, the AD8021 is supplied
with +12 V and
–
12 V supplies. The supply pins are decoupled
as close to the device as possible, with both a 0.1
μ
F and 10
μ
F
capacitor connected to each pin. In each case, the 0.1
μ
F capaci-
tor should be the closer of the two caps to the device. The
AD8021 logic reference pin is tied to analog ground and the
DISABLE
Pin is tied to the positive supply as shown. Detailed
information on the AD8021 is available on the Analog
Devices website.
FREQUENCY – kHz
–20
10
100
P
–50
–70
–80
–40
1000
–30
–60
–10
0
100mV p-p SINE WAVE ON SUPPLY PINS
TPC 7. PSRR without Decoupling
1
2
3
4
5
6
7
8
AD829
1k
1k
100
AC
SIGNAL
BIAS
VOLTAGE
150
220pF
–V
S
+V
S
–
+
V
IN
Figure 1. Analog Input Circuit Used for 10 kHz Input Tone
Figure 1 shows the analog input circuit used to obtain the
data for the FFT plot shown in TPC 1. The circuit uses an
Analog Devices AD829 op amp as the input buffer. A bipolar
analog signal is applied as shown and biased up with a stable,
low noise dc voltage connected to the labeled terminal
shown. A 220 pF compensation capacitor is connected be-
tween Pin 5 and the AD829 and the analog ground plane.
The AD829 is supplied with +12 V and
–
12 V supplies. The
supply pins are decoupled as close to the device as possible
with both a 0.1 F and 10 F capacitor connected to each
pin. In each case, 0.1 F capacitor should be the closer of
the two caps to the device. More information on the AD829
is available on the Analog Devices website.
TEMPERATURE – C
0.0004
–55
–25
5
35
95
125
R
–0.0004
–0.0008
–0.0012
–0.0016
–0.0020
0
65
TPC 8. Reference Out Error
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| AD7482BSTZ | 功能描述:IC ADC 12BIT SAR 3MSPS 48-LQFP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 其它有關(guān)文件:TSA1204 View All Specifications 標(biāo)準(zhǔn)包裝:1 系列:- 位數(shù):12 采樣率（每秒）:20M 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:2 功率耗散（最大）:155mW 電壓電源:模擬和數(shù)字 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:48-TQFP 供應(yīng)商設(shè)備封裝:48-TQFP（7x7） 包裝:Digi-Reel® 輸入數(shù)目和類型:4 個(gè)單端，單極；2 個(gè)差分，單極 產(chǎn)品目錄頁(yè)面:1156 (CN2011-ZH PDF) 其它名稱:497-5435-6 |
| AD7484 | 制造商:AD 制造商全稱:Analog Devices 功能描述:3MSPS, 14-Bit SAR ADC |
| AD7484BST | 制造商:Analog Devices 功能描述:ADC Single SAR 3Msps 14-bit Parallel 48-Pin LQFP 制造商:Rochester Electronics LLC 功能描述:14 BIT 3.0 MEG ADC IC - Tape and Reel 制造商:Analog Devices 功能描述:A/D Converter (A-D) IC |
| AD7484BSTZ | 功能描述:IC ADC 14BIT SAR 3MSPS 48-LQFP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 其它有關(guān)文件:TSA1204 View All Specifications 標(biāo)準(zhǔn)包裝:1 系列:- 位數(shù):12 采樣率（每秒）:20M 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:2 功率耗散（最大）:155mW 電壓電源:模擬和數(shù)字 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:48-TQFP 供應(yīng)商設(shè)備封裝:48-TQFP（7x7） 包裝:Digi-Reel® 輸入數(shù)目和類型:4 個(gè)單端，單極；2 個(gè)差分，單極 產(chǎn)品目錄頁(yè)面:1156 (CN2011-ZH PDF) 其它名稱:497-5435-6 |
| AD7484BSTZ | 制造商:Analog Devices 功能描述:IC 14-BIT ADC |
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