參數(shù)資料
型號： MAX5515ETC+T
廠商： Maxim Integrated Products
文件頁數(shù)： 9/23頁
文件大?。?/td> 0K
描述： IC DAC 8BIT DUAL VOUT 12TQFN
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 2,500
設(shè)置時(shí)間： 660µs
位數(shù)： 8
數(shù)據(jù)接口： MICROWIRE?，QSPI?，串行，SPI?
轉(zhuǎn)換器數(shù)目： 2
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： 12-WQFN 裸露焊盤
供應(yīng)商設(shè)備封裝： 12-TQFN-EP（4x4）
包裝： 帶卷 (TR)
輸出數(shù)目和類型： 2 電壓，單極；2 電壓，雙極
采樣率（每秒）： *
MAX5512–MAX5515
Dual, Ultra-Low-Power,
8-Bit, Voltage-Output DACs
______________________________________________________________________________________
17
Applications Information
1-Cell and 2-Cell Circuits
See Figure 3 for an illustration of how to power the
MAX5512–MAX5515 with either one lithium-ion battery
or two alkaline batteries. The low current consumption
of the devices make the MAX5512–MAX5515 ideal for
battery-powered applications.
Programmable Current Source
See the circuit in Figure 4 for an illustration of how to
configure the MAX5514/MAX5515 as a programmable
current source for driving an LED. The MAX5514/
MAX5515 drive a standard NPN transistor to program
the current source. The current source (ILED) is defined
in the equation in Figure 4.
REFIN
1/2 MAX5514
MAX6006
(1A, 1.25V
SHUNT
REFERENCE)
GND
+1.25V
0.01F
536k
VDD
DAC
VOUT
NDAC IS THE NUMERIC VALUE
OF THE DAC INPUT CODE.
VOUT (4.88mV / LSB)
1.8V ≤ VALKALINE ≤ 3.3V
2.2V ≤ VLITHIUM ≤ 3.3V
VOUT =
VREFIN × NDAC
256
0.1F
Figure 3. Portable Application Using Two Alkaline Cells or One Lithium Coin Cell
R
2N3904
NDAC IS THE NUMERIC VALUE
OF THE DAC INPUT CODE.
ILED
REFIN
LED
1/2 MAX5514
V+
DAC
VOUT
ILED =
VREFIN × NDAC
256 × R
FB
Figure 4. Programmable Current Source Driving an LED
R
FB
NDAC IS THE NUMERIC VALUE
OF THE DAC INPUT CODE.
IT
REFIN
1/2 MAX5514
DAC
VOUT
VOUT = VBIAS + (IT × R)
VOUT
VBIAS
TRANSDUCER
VBIAS =
VREF × NDAC
256
Figure 5. Transimpedance Configuration for a Voltage-Biased
Current-Output Transducer
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