參數(shù)資料
型號： MAX1416EUE+T
廠商： Maxim Integrated Products
文件頁數(shù)： 13/36頁
文件大小： 0K
描述： IC ADC 16BIT DELTA SIGMA 16TSSOP
產(chǎn)品培訓模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝： 2,500
位數(shù)： 16
采樣率（每秒）： 500
數(shù)據(jù)接口： MICROWIRE?，QSPI?，串行，SPI?
轉(zhuǎn)換器數(shù)目： 1
功率耗散（最大）： 755mW
電壓電源： 單電源
工作溫度： -45°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 16-TSSOP（0.173"，4.40mm 寬）
供應商設備封裝： 16-TSSOP
包裝： 帶卷 (TR)
輸入數(shù)目和類型： 2 個差分，單極；2 個差分，雙極
MAX1415/MAX1416
To minimize gain errors in unbuffered mode, select a
source impedance less than the maximum values
shown in Figures 2 and 3. These are the maximum
external resistance/capacitance combinations allowed
before gain errors greater than 1 LSB are introduced in
unbuffered mode.
Enable the internal input buffer for a high source imped-
ance. This isolates the inputs from the sampling capaci-
tor and reduces the sampling-related gain error. When
using the internal buffer, limit the absolute input voltage
range to (VGND + 50mV) to (VDD - 1.5V). Properly set
up the gain and common-mode voltage range to mini-
mize linearity errors.
Input Voltage Range
In unbuffered mode, the absolute analog input voltage
range is from (GND - 30mV) to (VDD + 30mV) (see the
Electrical Characteristics section). In buffered mode,
the analog input voltage range is reduced to (GND +
50mV) to (VDD - 1.5V). In both buffered and unbuffered
modes, the differential analog input range (VAIN+ - VAIN-)
decreases at higher gains (see the Programmable Gain
Amplifier and Unipolar and Bipolar Modes sections).
Reference
The MAX1415/MAX1416 provide differential inputs,
REF+ and REF-, for an external reference voltage.
Connect the external reference directly across REF+ and
REF- to obtain the differential reference voltage, VREF.
The common-mode voltage range for VREF+ and VREF-
is between GND and VDD. For specified operation, the
nominal voltage, VREF is 1.225V for the MAX1415 and
2.5V for the MAX1416.
The MAX1415/MAX1416 sample REF+ and REF- at
fCLKIN/64 (CLKDIV = 0) or fCLKIN/128 (CLKDIV = 1)
with an internal 10pF (typ for gain = 1) sampling capac-
itor in series with a 7k
(typ) switch on-resistance.
Programmable Gain Amplifier
A PGA provides selectable levels of gain: 1, 2, 4, 8, 16,
32, 64, and 128. Bits G0, G1, and G2 in the setup reg-
ister control the gain (see Table 9). As the gain increas-
es, the value of the input sampling capacitor, CSAMP,
also increases (see Table 5). The dynamic load pre-
sented to the analog inputs increases with clock fre-
quency and gain in unbuffered mode (see the Input
Buffers section and Figure 1).
16-Bit, Low-Power, 2-Channel,
Sigma-Delta ADCs
20
______________________________________________________________________________________
HIGH-
IMPEDANCE
INPUT
RSW (7k
TYP)
CTOTAL(7pF TYP FOR GAIN = 1)
AIN(+)
AIN(-)
VBIAS
CTOTAL = CSAMP + CSTRAY
Figure 1. Unbuffered Analog Input Structure
MAXIMUM EXTERNAL RESISTANCE
vs. MAXIMUM EXTERNAL CAPACITANCE (1MHz)
0.1
1
10
100
1
10
100
1000
10,000
EXTERNAL CAPACITANCE (pF)
EXTERNAL
RESIST
ANCE
(k
)
GAIN = 1
GAIN = 2
GAIN = 4
GAIN = 8 TO 128
Figure 2. Maximum External Resistance vs. Maximum External
Capacitance for Unbuffered Mode (1MHz)
MAXIMUM EXTERNAL RESISTANCE
vs. MAXIMUM EXTERNAL CAPACITANCE
(2.4576MHz)
0.1
1
10
100
1
10
100
1000
10,000
EXTERNAL CAPACITANCE (pF)
EXTERNAL
RESIST
ANCE
(k
)
GAIN = 2
GAIN = 4
GAIN = 8 TO 128
GAIN = 1
Figure 3. Maximum External Resistance vs. Maximum External
Capacitance for Unbuffered Mode (2.4576MHz)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX1416EVC16 功能描述:模數(shù)轉(zhuǎn)換器 - ADC MAX1416 Evaluation Kit/Evaluation System 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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
MAX1416EVKIT 功能描述:數(shù)據(jù)轉(zhuǎn)換 IC 開發(fā)工具 MAX1416 Evaluation Kit/Evaluation System RoHS:否 制造商:Texas Instruments 產(chǎn)品:Demonstration Kits 類型:ADC 工具用于評估:ADS130E08 接口類型:SPI 工作電源電壓:- 6 V to + 6 V
MAX1416EWE 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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
MAX1416EWE+ 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 16-Bit 2Ch .5ksps 3.5V 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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
MAX1416EWE+T 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 16-Bit 2Ch .5ksps 3.5V 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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
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