參數(shù)資料
型號(hào)： MAX1159AEUI+
廠商： Maxim Integrated Products
文件頁數(shù)： 13/15頁
文件大?。?/td> 0K
描述： IC ADC 14BIT 135KSPS 28-TSSOP
標(biāo)準(zhǔn)包裝： 50
位數(shù)： 14
采樣率（每秒）： 135k
數(shù)據(jù)接口： 并聯(lián)
轉(zhuǎn)換器數(shù)目： 1
功率耗散（最大）： 1.03W
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： 28-TSSOP（0.173"，4.40mm 寬）
供應(yīng)商設(shè)備封裝： 28-TSSOP
包裝： 管件
輸入數(shù)目和類型： 1 個(gè)單端，雙極
Detailed Description
Converter Operation
The MAX1157/MAX1159/MAX1175 use a successive-
approximation (SAR) conversion technique with an
inherent track-and-hold (T/H) stage to convert an analog
input into a 14-bit digital output. Parallel outputs provide
a high-speed interface to microprocessors (Ps). The
Functional Diagram at the end of the data sheet shows a
simplified internal architecture of the MAX1157/
MAX1159/MAX1175. Figure 3 shows a typical applica-
tion circuit for the MAX1157/MAX1159/MAX1175.
Analog Input
Input Scaler
The MAX1157/MAX1159/MAX1175 have an input scaler
which allows conversion of true bipolar input voltages
and input voltages greater than the power supply, while
operating from a single +5V analog supply. The input
scaler attenuates and shifts the analog input to match
the input range of the internal DAC. The MAX1157 has
a unipolar input voltage range of 0 to +10V. The
MAX1175 input voltage range is ±5V while the
MAX1159 input voltage range is ±10V. Figure 4 shows
the equivalent input circuit of the MAX1157/
MAX1159/MAX1175. This circuit limits the current going
into or out of AIN to less than 1.8mA.
MAX1157/MAX1159/MAX1175
14-Bit, 135ksps, Single-Supply ADCs with
Bipolar Analog Input Range
_______________________________________________________________________________________
7
Pin Description (continued)
PIN
NAME
FUNCTION
15
REFADJ
Reference Buffer Output. Bypass REFADJ with a 0.1F capacitor to AGND for internal reference
mode. Connect REFADJ to AVDD to select external reference mode.
16
REF
Reference Input/Output. Bypass REF with a 10F capacitor to AGND. REF is the external reference
input when in external reference mode.
17
RESET
Reset Input. Logic high resets the device.
18
CS
Convert Start. The first falling edge of CS powers up the device and enables acquisition when R/C
is low. The second falling edge of CS starts conversion. The third falling edge of CS loads the result
onto the bus when R/C is high.
19
DGND
Digital Ground
20
DVDD
Digital Supply Voltage. Bypass with a 0.1F capacitor to DGND.
21, 22
N.C.
No Connection. Make no connection to these pins.
23
D0
Three-State Digital Data Output (LSB)
24
D1
Three-State Digital Data Output
25
D2
Three-State Digital Data Output
26
D3
Three-State Digital Data Output
27
D4
Three-State Digital Data Output
28
D5
Three-State Digital Data Output
Figure 1. Load Circuits
1mA
DGND
HIGH-Z TO VOH,
VOL TO VOH, AND
VOH TO HIGH-Z
CLOAD = 20pF
D0–D13
A)
1mA
DVDD
DGND
HIGH-Z TO VOL,
VOH TO VOL, AND
VOL TO HIGH-Z
CLOAD = 20pF
D0–D13
B)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX1159AEUI+ 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 14-Bit 135ksps 4.2V 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
MAX1159AEUI+T 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 14-Bit 135ksps 4.2V 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
MAX1159AEUI-T 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
MAX1159BCUI 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
MAX1159BCUI+ 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 14-Bit 135ksps 4.2V 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
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