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參數資料
| 型號： | MAX11611EEE+T |
| 廠商： | Maxim Integrated Products |
| 文件頁數： | 11/22頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ADC SERIAL 10BIT 12CH 16-QSOP |
| 產品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 2,500 |
| 位數： | 10 |
| 采樣率（每秒）： | 94.4k |
| 數據接口： | I²C，串行 |
| 轉換器數目： | 1 |
| 功率耗散（最大）： | 666.7mW |
| 電壓電源： | 單電源 |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-SSOP（0.154"，3.90mm 寬） |
| 供應商設備封裝： | 16-QSOP |
| 包裝： | 帶卷 (TR) |
| 輸入數目和類型： | 12 個單端，單極；12 個單端，雙極；6 個差分，單極；6 個差分，雙極 |
MAX11606–MAX11611
Low-Power, 4-/8-/12-Channel, I2C,
10-Bit ADCs in Ultra-Small Packages
19
Maxim Integrated
external bypass capacitor and works best when left
unconnected (SEL1 = 0).
External Reference
The external reference can range from 1V to VDD. For
maximum conversion accuracy, the reference must be
able to deliver up to 40A and have an output imped-
ance of 500
Ω or less. If the reference has a higher out-
put impedance or is noisy, bypass it to GND as close
as possible to AIN_/REF with a 0.1F capacitor.
Transfer Functions
Output data coding for the MAX11606–MAX11611 is
binary in unipolar mode and two’s complement in bipo-
lar mode with 1LSB = (VREF/2N) where N is the number
of bits (10). Code transitions occur halfway between
successive-integer LSB values. Figure 12 and Figure
13 show the input/output (I/O) transfer functions for
unipolar and bipolar operations, respectively.
Layout, Grounding, and Bypassing
Only use PC boards. Wire-wrap configurations are not
recommended since the layout should ensure proper
separation of analog and digital traces. Do not run ana-
log and digital lines parallel to each other, and do not
layout digital signal paths underneath the ADC pack-
age. Use separate analog and digital PCB ground sec-
tions with only one star point (Figure 14) connecting the
two ground systems (analog and digital). For lowest
noise operation, ensure the ground return to the star
ground’s power supply is low impedance and as short
as possible. Route digital signals far away from sensi-
tive analog and reference inputs.
High-frequency noise in the power supply (VDD) could
influence the proper operation of the ADC’s fast com-
parator. Bypass VDD to the star ground with a network of
two parallel capacitors, 0.1F and 4.7F, located as
close as possible to the MAX11606–MAX11611 power-
supply pin. Minimize capacitor lead length for best sup-
ply noise rejection, and add an attenuation resistor (5
Ω)
in series with the power supply, if it is extremely noisy.
Definitions
Integral Nonlinearity
Integral nonlinearity (INL) is the deviation of the values on
an actual transfer function from a straight line. This straight
line can be either a best straight-line fit or a line drawn
between the endpoints of the transfer function, once offset
and gain errors have been nullified. The MAX11606–
MAX11611’s INL is measured using the endpoint.
Differential Nonlinearity
Differential nonlinearity (DNL) is the difference between
an actual step width and the ideal value of 1LSB. A
DNL error specification of less than 1LSB guarantees
no missing codes and a monotonic transfer function.
Aperture Jitter
Aperture jitter (tAJ) is the sample-to-sample variation in
the time between the samples.
011 . . . 111
011 . . . 110
000 . . . 010
000 . . . 001
000 . . . 000
111 . . . 111
111 . . . 110
111 . . . 101
100 . . . 001
100 . . . 000
- FS
0
INPUT VOLTAGE (LSB)
OUTPUT CODE
ZS = 0
+FS - 1 LSB
*VCOM
≥ VREF/2 *VIN = (AIN+) - (AIN-)
FS =
VREF
2
-FS =
-VREF
2
MAX11606–
MAX11611
1 LSB =
VREF
1024
Figure 13. Bipolar Transfer Function
GND
VLOGIC = 3V/5V
3V OR 5V
SUPPLIES
DGND
3V/5V
GND
*OPTIONAL
4.7
μF
R* = 5
Ω
0.1
μF
VDD
DIGITAL
CIRCUITRY
MAX11606–
MAX11611
Figure 14. Power-Supply Grounding Connection
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX11612 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Low-Power, 4-/8-/12-Channel, I2C, 12-Bit ADCs in Ultra-Small Packages |
| MAX11612_11 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Low-Power, 4-/8-/12-Channel, I2C, 12-Bit ADCs in Ultra-Small Packages |
| MAX11612DB+ | 功能描述:模數轉換器 - ADC Integrated Circuits (ICs) Data Acquisition - Analog to Digital Converters - IC ADC 12BIT 4CH LP 8UMAX RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率: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 |
| MAX11612EUA+ | 功能描述:模數轉換器 - ADC 12-Bit 4Ch 94.4sps 5.5V Precision ADC RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率: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 |
| MAX11612EUA+T | 功能描述:模數轉換器 - ADC 12-Bit 4Ch 94.4sps 5.5V Precision ADC RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率: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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