- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄383312 > MAX117EPI (MAXIM INTEGRATED PRODUCTS INC) +3V, 400ksps, 4/8-Channel, 8-Bit ADCs with 1UA Power-Down PDF資料下載
參數(shù)資料
| 型號(hào)： | MAX117EPI |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | ADC |
| 英文描述： | +3V, 400ksps, 4/8-Channel, 8-Bit ADCs with 1UA Power-Down |
| 中文描述： | 8-CH 8-BIT FLASH METHOD ADC, PARALLEL ACCESS, PDIP28 |
| 封裝： | 0.600 INCH, PLASTIC, DIP-28 |
| 文件頁(yè)數(shù)： | 10/12頁(yè) |
| 文件大?。?/td> | 106K |
| 代理商： | MAX117EPI |
M
Initial Power-Up
When power is first applied, perform a conversion to
initialize the MAX113/MAX117. Disregard the output
data.
Bypassing
Use a 4.7μF electrolytic in parallel with a 0.1μF ceramic
capacitor to bypass V
DD
to GND. Minimize capacitor
lead lengths.
Bypass the reference inputs with 0.1μF capacitors, as
shown in Figures 7a, 7b, and 7c.
Analog Inputs
Figure 8 shows the equivalent circuit of the MAX113/
MAX117 input. When a conversion starts and
WR
is
low, V
IN_
is connected to sixteen 0.6pF capacitors.
During this acquisition phase, the input capacitors
charge to the input voltage through the resistance of
the internal analog switches. In addition, about 22pF of
stray capacitance must be charged. The input can be
modeled as an equivalent RC network (Figure 9). As
source impedance increases, the capacitors take
longer to charge.
The typical 32pF input capacitance allows source resis-
tance as high as 1.5k
without setup problems. For
larger resistances, the acquisition time (t
ACQ
) must be
increased.
Internal protection diodes, which clamp the analog
input to V
DD
and GND, allow the channel input pins to
swing from GND - 0.3V to V
DD
+ 0.3V without damage.
However, for accurate conversions near full scale and
zero scale the inputs must not exceed V
DD
by more
than 50mV or be lower than GND by 50mV.
+3V, 400ksps, 4/8-Channel,
8-Bit ADCs with 1μA Power-Down
10
______________________________________________________________________________________
R
ON
R
IN
V
IN2
MAX113
MAX117
.
.
.
T/H
MUX
2k
R
V
IN_
1
22pF
V
IN
MAX113
MAX117
10pF
Figure 8. Equivalent Input Circuit
Figure 9. RC Network Equivalent Input Model
REF-
MAX113
MAX117
V
DD
MAX872
REF+
+3V
0.1μF
C1
4.7μF
PWRDN
PWRDN
N-FET*
* IRML2402
0.1μF
Figure 7d. An N-channel MOSFET switches off the reference
load during power-down
OUTPUT CODE
INPUT VOLTAGE (LSBs)
FS
FS - 1LSB
FULL-SCALE
TRANSITION
1
2
3
11111111
11111110
11111101
00000011
00000010
00000001
00000000
V
REF-
1LSB =
V
REF+
- V
REF-
256
V
REF+
Figure 10. Transfer Function
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX117EAI | +3V, 400ksps, 4/8-Channel, 8-Bit ADCs with 1UA Power-Down |
| MAX117MJI | +3V, 400ksps, 4/8-Channel, 8-Bit ADCs with 1UA Power-Down |
| MAX1180 | Dual 10-Bit, 105Msps, +3.3V, Low-Power ADC with Internal Reference and Parallel Outputs |
| MAX1180ECM | Dual 10-Bit, 105Msps, +3.3V, Low-Power ADC with Internal Reference and Parallel Outputs |
| MAX1182 | Dual 10-Bit, 65Msps, +3V, Low-Power ADC with Internal Reference and Parallel Outputs |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX117EPI+ | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 8-Bit 4Ch 400ksps 3.6V Precision 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 輸入類型:Differential 信噪比:107 dB 接口類型: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 |
| MAX117EVKIT-DIP | 功能描述:數(shù)據(jù)轉(zhuǎn)換 IC 開(kāi)發(fā)工具 MAX117/8 Eval Kit RoHS:否 制造商:Texas Instruments 產(chǎn)品:Demonstration Kits 類型:ADC 工具用于評(píng)估:ADS130E08 接口類型:SPI 工作電源電壓:- 6 V to + 6 V |
| MAX117MJI | 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 輸入類型:Differential 信噪比:107 dB 接口類型: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 |
| MAX11800ETC/V+ | 功能描述:觸摸屏轉(zhuǎn)換器和控制器 SPI 4Ch Touch Screen Controller RoHS:否 制造商:Microchip Technology 類型:Resistive Touch Controllers 輸入類型:3 Key 數(shù)據(jù)速率:140 SPS 分辨率:10 bit 接口類型:4-Wire, 5-Wire, 8-Wire, I2C, SPI 電源電壓:2.5 V to 5.25 V 電源電流:17 mA 工作溫度:- 40 C to + 85 C 封裝 / 箱體:SSOP-20 |
| MAX11800ETC/V+T | 功能描述:觸摸屏轉(zhuǎn)換器和控制器 SPI 4Ch Touch Screen Controller RoHS:否 制造商:Microchip Technology 類型:Resistive Touch Controllers 輸入類型:3 Key 數(shù)據(jù)速率:140 SPS 分辨率:10 bit 接口類型:4-Wire, 5-Wire, 8-Wire, I2C, SPI 電源電壓:2.5 V to 5.25 V 電源電流:17 mA 工作溫度:- 40 C to + 85 C 封裝 / 箱體:SSOP-20 |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。