- 您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄9773 > XRD87L99AIQ (Exar Corporation)IC ADC 10BIT 2MSPS 44PQFP PDF資料下載
參數(shù)資料
| 型號(hào)： | XRD87L99AIQ |
| 廠商： | Exar Corporation |
| 文件頁(yè)數(shù)： | 6/24頁(yè) |
| 文件大小： | 0K |
| 描述： | IC ADC 10BIT 2MSPS 44PQFP |
| 產(chǎn)品變化通告： | Obsolescence Notification 15/Apr/2010 |
| 標(biāo)準(zhǔn)包裝： | 160 |
| 位數(shù)： | 10 |
| 采樣率（每秒）： | 2M |
| 數(shù)據(jù)接口： | 并聯(lián) |
| 功率耗散（最大）： | 450mW |
| 電壓電源： | 模擬和數(shù)字 |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類(lèi)型： | 表面貼裝 |
| 封裝/外殼： | 44-QFP |
| 供應(yīng)商設(shè)備封裝： | 44-PQFP（10x10） |
| 包裝： | 托盤(pán) |
| 輸入數(shù)目和類(lèi)型： | * |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)當(dāng)前第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)
xr
xr
XRD87L99
LOW POWER, 2 MSPS, 10-BIT, A/D CONVERTER WITH 8-CHANNEL MUX
REV. 1.0.0
14
2.0
APPLICATION NOTES
FIGURE 16. TYPICAL CIRCUIT CONNECTIONS
The following information will be useful in maximizing
the performance of the XRD87L99.
1. All signals should not exceed AVDD +0.5 V or
AGND -0.5 V or DVDD +0.5 V or DGND -0.5 V.
2. Any input pin which can see a value outside the
absolute maximum ratings (AVDD or DVDD+0.5 V
or AGND -0.5 V) should be protected by diode
clamps (HP5082-2835) from input pin to the sup-
plies. All XRD87L99 inputs have input protection
diodes which will protect the device from short
transients outside the supply ranges.
3. The design of a PC board will affect the accuracy
of XRD87L99. Use of wire wrap is not recom-
mended.
4. The analog input signal (VIN) is quite sensitive
and should be properly routed and terminated. It
should be shielded from the clock and digital out-
puts so as to minimize cross coupling and noise
pickup.
5. The analog input should be driven by a low
impedance (less than 50
).
6. Analog and digital ground planes should be sub-
stantial and common at one point only. The
ground plane should act as a shield for parasitics
and not a return path for signals. To reduce noise
levels, use separate low impedance ground
paths. DGND should not be shared with other
digital circuitry. If separate low impedance paths
cannot be provided, DGND should be connected
to AGND next to the XRD87L99.
7. DVDD should not be shared with other digital cir-
cuitry to avoid conversion errors caused by digital
supply transients. DVDD for the XRD87L99 should
be connected to AVDD next to the XRD87L99.
8. DVDD and AVDD are connected inside the
XRD87L99. DGND and AGND are connected
internally.
9. Each power supply and reference voltage pin
should be decoupled with a ceramic (0.1
F) and
a tantalum (10
F) capacitor as close to the
device as possible.
10. The digital output should not drive long wires.
The capacitive coupling and reflection will con-
tribute noise to the conversion. When driving dis-
tant loads, buffers should be used. 100
resis-
tors in series with the digital outputs in some
applications reduces the digital output disruption
of AIN.
OFW
CLK
DB9 - DB0
OE
AGND
DGND
(Substrate)
XRD87L99
AIN1
V
REF(+)
V
REF(-)
3/4 R
1/4 R
Buffer
AV
DD
DV
DD
C1D, C2D
C1A, C2A
C1 = 4.7 or 10
F Tantalum
C2 = 0.1
F Chip Cap or low inductance cap
R
T = Clock Transmission Line Termination
Reference
Voltage
Source
V
REF1(-)
A
IN
C1
C2
C1
C2
C1
C2
+
-
+5 V
R
T
1 of 8
AIN8
Z < 100
Resistive
Isolation of
50 to 100
WR
CLK
A2
A1
A0
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX3243EEWI+T | IC TXRX RS-232 W/SHTDWN 28-SOIC |
| MAX3241EEWI+T | IC TXRX RS-232 LP 28-SOIC |
| MAX233ACPP | IC 2DVR/2RCVR RS232 5V 20-DIP |
| VE-26J-IU-F1 | CONVERTER MOD DC/DC 36V 200W |
| D38999/24MC4PB | CONN RCPT 4POS JAM NUT W/PINS |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XRD87L99AIQ-F | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類(lèi)型:Differential 信噪比:107 dB 接口類(lèi)型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| XRD9814 | 制造商:EXAR 制造商全稱(chēng):EXAR 功能描述:3-Channel 14/16-Bit Linear CCD/CIS Sensor Signal Processors |
| XRD9814ACV | 制造商:EXAR 制造商全稱(chēng):EXAR 功能描述:3-Channel 14/16-Bit Linear CCD/CIS Sensor Signal Processors |
| XRD9814B | 制造商:EXAR 制造商全稱(chēng):EXAR 功能描述:3-Channel 14/16-Bit Linear CCD/CIS Sensor Signal Processors |
| XRD9814BCV | 制造商:EXAR 制造商全稱(chēng):EXAR 功能描述:3-Channel 14/16-Bit Linear CCD/CIS Sensor Signal Processors |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。