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參數(shù)資料
| 型號(hào)： | MAX1416EWE+ |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 13/36頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ADC 16BIT DELTA SIGMA 16-SOIC |
| 產(chǎn)品培訓(xùn)模塊： | MAX11200 ADC Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 46 |
| 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）： | 762mW |
| 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-SOIC（0.295"，7.50mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 16-SOIC W |
| 包裝： | 管件 |
| 輸入數(shù)目和類型： | 2 個(gè)差分，單極；2 個(gè)差分，雙極 |
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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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參數(shù)描述 |
|---|---|
| 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(fēng)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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX1416EWE-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 |
| MAX1418ETN+D | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX1418ETN+TD | 制造商:Maxim Integrated Products 功能描述:- Tape and Reel |
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