欧美成人免费电影,国产欧美一区二区三区精品酒店,精品国产a毛片,色网在线免费观看

參數(shù)資料
型號: AD7886JP
廠商: ANALOG DEVICES INC
元件分類: ADC
英文描述: LC2MOS 12-Bit, 750 kHz/1 MHz, Sampling ADC
中文描述: 1-CH 12-BIT FLASH METHOD ADC, PARALLEL ACCESS, PQCC28
封裝: PLASTIC, LCC-28
文件頁數(shù): 5/16頁
文件大?。?/td> 400K
代理商: AD7886JP
AD7886
–5–
REV. B
PIN CONFIGURATIONS
DIP
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
TOP VIEW
(Not to Scale)
AD7886
DB7
DB6
DB5
DB4
DGND
DB3
DB2
DB1
DB0
V
DD
DB8
DB9
DB10
DB11
V
SS
AGND
V
REF
SUM
+5REF
V
DD
VIN2
VIN1
AGND
V
SS
CS
RD
CONVST
BUSY
TERMINOLOGY
Unipolar Offset Error
The ideal first code transition should occur when the analog
input is 1 LSB above AGND. The deviation of the actual transi-
tion from that point is termed the offset error.
Bipolar Zero Error
The ideal midscale transition (i.e., 0111 1111 1111 to 1000
0000 0000) for the +5 V range should occur when the analog
input is at zero volts. Bipolar zero error is the deviation of the
actual transition from that point.
Gain Error
In the unipolar mode, gain error is measured with respect to the
first and last code transition points. The ideal difference be-
tween these points is FS–2 LSBs. For bipolar applications, the
gain error is measured from the midscale transition to both the
first and last code transitions. The ideal difference in this case is
FS/2–1 LSB. The gain error is defined as the deviation between
the ideal difference, given above, and the measured difference.
For the bipolar case, there are two gain errors; the figure in the
specification page represents the worst case. Ideal FS depends
on the +5REF input; for the 0 V to 5 V input, ideal FS = +5REF
and for the 0 V to 10 V and +5 V ranges, ideal FS = 2
×
+ 5REF.
CONVERTER DETAILS
The AD7886 is a triple-pass flash ADC that uses 15 compara-
tors in a 4-bit flash technique to perform the 12-bit conversion
procedure. Each of the 4096 quantization levels is realized inter-
nally with a precision resistor DAC.
The fifteen comparators first compare the analog input voltage
to the V
REF
/16 voltages of the resistor array. This determines the
four most significant bits and selects 1 out of 16 voltage seg-
ments. The comparators are then switched to 15 subvoltages on
that segment to determine the next four bits and select 1 out of
256 voltage segments. A further switching of the comparators to
another 15 subvoltages produces the complete 12-bit conversion
result. The 12 bits of data are then stored internally in a three-
state output latch.
REFERENCE INPUT
The AD7886 operates from a 3.5 V reference, which must be
provided at the V
REF
input. Two on-chip resistors for use with
an external amplifier can be used for deriving 3.5 V from stan-
dard 5 V references. Figure 2 shows an example with the AD586
which a is a high performance voltage reference exhibiting
excellent stability performance, 5 ppm/
°
C max. The external
amplifier serves a second function of force/sensing the V
REF
input. Force/sensing minimizes error contributions from
AD7886*
SUM
+5REF
TO DAC
+
AD586
V
OUT
+V
IN
GND
AGND
+V
+5V
R1
9k
R2
6.3k
C1
10
μ
F
C2
0.1
μ
F
AD707
V
REF
–3.5V
*ADDITIONAL PINS OMITTED FOR CLARITY
Figure 2. Typical Reference Circuitry
PLCC
A
V
V
D
D
D
DB11
D
D
D
D
AGND
SUM
+5REF
DB2
DB1
DB0
DGND
DB3
V
SS
V
REF
V
DD
C
R
C
V
S
V
DD
BUSY
AD7886
TOP VIEW
(Not to Scale)
5
6
7
8
9
10
11
28
27
26
1
2
3
4
25
24
23
22
21
20
19
12
13
14
15
16
17
18
相關PDF資料
PDF描述
AD7886 LC2MOS 12-Bit, 750 kHz/1 MHz, Sampling ADC
AD7886BD LC2MOS 12-Bit, 750 kHz/1 MHz, Sampling ADC
AD7886KD LC2MOS 12-Bit, 750 kHz/1 MHz, Sampling ADC
AD7886KP LC2MOS 12-Bit, 750 kHz/1 MHz, Sampling ADC
AD7886TD LC2MOS 12-Bit, 750 kHz/1 MHz, Sampling ADC
相關代理商/技術參數(shù)
參數(shù)描述
AD7886JP-REEL 功能描述:IC ADC 12BIT SAMPLING HS 28-PLCC RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標準包裝:1 系列:- 位數(shù):14 采樣率(每秒):83k 數(shù)據(jù)接口:串行,并聯(lián) 轉(zhuǎn)換器數(shù)目:1 功率耗散(最大):95mW 電壓電源:雙 ± 工作溫度:0°C ~ 70°C 安裝類型:通孔 封裝/外殼:28-DIP(0.600",15.24mm) 供應商設備封裝:28-PDIP 包裝:管件 輸入數(shù)目和類型:1 個單端,雙極
AD7886KP-REEL 制造商:Analog Devices 功能描述:
AD7887AR 功能描述:IC ADC 12BIT 2CH SRL 8-SOIC RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標準包裝:1,000 系列:- 位數(shù):16 采樣率(每秒):45k 數(shù)據(jù)接口:串行 轉(zhuǎn)換器數(shù)目:2 功率耗散(最大):315mW 電壓電源:模擬和數(shù)字 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SOIC(0.295",7.50mm 寬) 供應商設備封裝:28-SOIC W 包裝:帶卷 (TR) 輸入數(shù)目和類型:2 個單端,單極
AD7887ARM 功能描述:IC ADC 12BIT 2CH SRL 8-MSOP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標準包裝:1,000 系列:- 位數(shù):16 采樣率(每秒):45k 數(shù)據(jù)接口:串行 轉(zhuǎn)換器數(shù)目:2 功率耗散(最大):315mW 電壓電源:模擬和數(shù)字 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SOIC(0.295",7.50mm 寬) 供應商設備封裝:28-SOIC W 包裝:帶卷 (TR) 輸入數(shù)目和類型:2 個單端,單極
AD7887ARM-REEL 制造商:Analog Devices 功能描述:ADC Single SAR 125ksps 12-bit Serial 8-Pin MSOP T/R
主站蜘蛛池模板: 惠州市| 泽普县| 公安县| 鄂尔多斯市| 南宫市| 东阿县| 乐陵市| 汶上县| 临邑县| 宜兰县| 绥德县| 呈贡县| 剑阁县| 汶上县| 西贡区| 吐鲁番市| 屯昌县| 于都县| 崇信县| 莱阳市| 醴陵市| 丰镇市| 巨野县| 平塘县| 赞皇县| 南漳县| 商水县| 咸丰县| 乐至县| 泾川县| 永寿县| 边坝县| 柏乡县| 吐鲁番市| 大理市| 苍梧县| 福清市| 花莲市| 临潭县| 临海市| 阿尔山市|