- 您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄9950 > MAX159BEUA+T (Maxim Integrated Products)IC ADC 10BIT 108KSPS 8-UMAX PDF資料下載
參數(shù)資料
| 型號(hào)： | MAX159BEUA+T |
| 廠商： | Maxim Integrated Products |
| 文件頁(yè)數(shù)： | 14/16頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC ADC 10BIT 108KSPS 8-UMAX |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 位數(shù)： | 10 |
| 采樣率（每秒）： | 108k |
| 數(shù)據(jù)接口： | 串行 |
| 轉(zhuǎn)換器數(shù)目： | 1 |
| 功率耗散（最大）： | 2.7mW |
| 電壓電源： | 單電源 |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類(lèi)型： | 表面貼裝 |
| 封裝/外殼： | 8-TSSOP，8-MSOP（0.118"，3.00mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 8-uMAX |
| 包裝： | 帶卷 (TR) |
| 輸入數(shù)目和類(lèi)型： | 1 個(gè)偽差分，單極 |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)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)當(dāng)前第14頁(yè)第15頁(yè)第16頁(yè)
MAX157/MAX159
+2.7V, Low-Power, 2-Channel,
108ksps, Serial 10-Bit ADCs in 8-Pin MAX
_______________________________________________________________________________________
7
Detailed Description
The MAX157/MAX159 analog-to-digital converters
(ADCs) use a successive-approximation conversion
(SAR) technique and on-chip track/hold (T/H) structure
to convert an analog signal to a serial, 10-bit digital out-
put data stream.
This flexible serial interface provides easy interface to
microprocessors (Ps). Figure 2 shows a simplified
functional diagram of the internal architecture for both
the MAX157 (2 channels, single-ended) and the
MAX159 (1 channel, pseudo-differential).
Single-Ended (MAX157) and Pseudo-
Differential (MAX159) Analog Inputs
The sampling architecture of the ADC’s analog com-
parator is illustrated in the equivalent input circuit in
Figure 3. In single-ended mode (MAX157), both chan-
nels CH0 and CH1 are referred to GND and can be
connected to two different signal sources. Following the
power-on reset, the ADC is set to convert CH0. After
CH0 has been converted, CH1 will be converted, and
the conversions will continue to alternate between
channels. Channel switching is performed by toggling
the CS/SHDN pin. Conversions can be performed on
the same channel by toggling CS/SHDN twice between
conversions. If only one channel is required, CH0 and
CH1 may be connected together; however the output
data will still contain the channel identification bit
(before the MSB).
For the MAX159, the input channels form a single differ-
ential channel pair (CH+, CH-). This configuration is
pseudo-differential to the effect that only the signal at
IN+ is sampled. The return side IN- must remain stable
within ±0.5LSB (±0.1LSB for optimum results) with
respect to GND during a conversion. To accomplish
this, connect a 0.1F capacitor from IN- to GND.
During the acquisition interval, the channel selected as
the positive input (IN+) charges capacitor CHOLD. The
acquisition interval spans from when CS/SHDN falls to
the falling edge of the second clock cycle (external
clock mode) or from when CS/SHDN falls to the first
falling edge of SCLK (internal clock mode). At the end
of the acquisition interval, the T/H switch opens, retain-
ing charge on CHOLD as a sample of the signal at IN+.
The conversion interval begins with the input multiplex-
er switching CHOLD from the positive input (IN+) to the
negative input (IN-). This unbalances node ZERO at the
comparator’s positive input.
6k
CL
DOUT
a) HIGH-Z TO V0H, V0L TO V0H, AND VOH TO HIGH-Z
6k
CL
DOUT
GND
VDD
b) HIGH-Z TO V0L, V0H TO V0L, AND VOL TO HIGH-Z
Figure 1. Load Circuits for Enable and Disable Time
Pin Description
NAME
FUNCTION
1
VDD
Positive Supply Voltage, +2.7V to +5.25V
2
CH0 (CH+)
Analog Input, MAX157: Single-Ended (CH0); MAX159: Differential (CH+).
PIN
3
CH1 (CH-)
Analog Input, MAX157: Single-Ended (CH1); MAX159: Differential (CH-).
4
GND
Analog and Digital Ground
8
SCLK
Serial Clock Input. DOUT changes on the falling edge of SCLK.
7
DOUT
Serial Data Output. Data changes state at SCLK’s falling edge. High impedance when CS/SHDN is high.
6
CS/SHDN
Active-Low Chip-Select Input, Active-High Shutdown Input. Pulling CS/SHDN high puts chip into
shutdown with a maximum current of 5A.
5
REF
External Reference Voltage Input. Sets analog voltage range. Bypass with a 100nF capacitor close to the
part.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| VI-B6H-IV-F4 | CONVERTER MOD DC/DC 52V 150W |
| MS3100E22-23P | CONN RCPT 8POS WALL MNT W/PINS |
| GTC06AF-16-10S | CONN PLUG 3POS STRAIGHT W/SCKT |
| MAX1238LEEE+ | IC ADC 12BIT SERIAL 16-QSOP |
| ISL81486IUZ-T | IC TXRX RS485/422 5V HS 8-MSOP |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX15D | 制造商:Lanzar 功能描述:Dual 4 Ohm 1200W Peak 15 Paper Cone Dual Vc Woofer 制造商:LANZAR 功能描述:15 PAPER CONE DUAL VC WOOFER DUAL 4 OHM 1200W PEAK |
| MAX15NG | 功能描述:散熱片 Max Clip D61 13.5lb 13.2x18mm RoHS:否 制造商:Ampro By ADLINK 產(chǎn)品:Heat Sink Accessories 安裝風(fēng)格:Through Hole 散熱片材料: 散熱片樣式: 熱阻: 長(zhǎng)度: 寬度: 高度: 設(shè)計(jì)目的:Express-HRR |
| MAX15-V | 制造商:Aavid Thermalloy 功能描述:HEAT SINK CLIP - VERTICAL MAX TO220 |
| MAX16 | 功能描述:MAX CLIP RoHS:否 類(lèi)別:風(fēng)扇，熱管理 >> 熱敏 - 配件 系列:Max Clip System™ 標(biāo)準(zhǔn)包裝:1 系列:- 附件類(lèi)型:基礎(chǔ)組件 適用于相關(guān)產(chǎn)品:Intel Pentium II Xeon 其它名稱(chēng):073974-0004073974-0004-E07397400040739740004-E73974-0004-E739740004739740004-E |
| MAX16000ATC | 制造商:Maxim Integrated Products 功能描述:LOW-VOLTAGE, QUAD-/HEX-/OCTAL-VOLTAGE MICROPR - Rail/Tube |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。