參數(shù)資料
型號: MAX5394NATA+T
廠商: Maxim Integrated Products
文件頁數(shù): 1/15頁
文件大?。?/td> 0K
描述: IC DGTL POT 256POS 100KOHM 8TDFN
標準包裝: 2,500
接片: 256
電阻(歐姆): 100k
電路數(shù): 1
溫度系數(shù): 標準值 50 ppm/°C
存儲器類型: 易失
接口: 3 線 SPI(芯片選擇)
電源電壓: 1.7 V ~ 5.5 V
工作溫度: -40°C ~ 125°C
安裝類型: *
封裝/外殼: *
供應商設備封裝: *
包裝: *
MAX5394
Single, 256-Tap Volatile, SPI, Low-Voltage Linear
Taper Digital Potentiometer
General Description
The MAX5394 single, 256-tap volatile, low-voltage
linear taper digital potentiometer offers three end-to-
end resistance values of 10k
, 50k, and 100k.
Potentiometer terminals are independent of supply for
voltages up to 5.25V with single-supply operation from
1.7V to 5.5V (charge pump enabled). User-controlled
shutdown modes allow the H, W, or L terminal to be
opened with the wiper position set to zero-code, mid-
code, full-code, or the value contained in the wiper
register. Ultra-low-quiescent supply current (< 1A) can
be achieved for supply voltages between 2.6V and 5.5V
by disabling the internal charge pump and not allowing
potentiometer terminals to exceed the supply voltage by
more than 0.3V. The MAX5394 provides a low 50ppm/°C
end-to-end temperature coefficient and features a SPI
serial interface.
The small package size, low operating supply voltage,
low supply current, and automotive temperature range
of the MAX5394 make the device uniquely suited for the
portable consumer market, battery-backup industrial
applications, and automotive market.
The MAX5394 is available in a lead-free, 8-pin TDFN
(2mm x 2mm) package. The device operates over the
-40°C to +125°C automotive temperature range.
Features
S
Single Linear Taper 256-Tap Positions
S
10kI, 50kI, and 100kI End-to-End Resistance
S
1.7V to 5.5V Extended Single Supply
S
0 to 5.25V H, W, L Operating Voltage Independent
of VDD
S
1A (typ) Supply Current in Low-Power Mode
S
±1.0 LSB INL, ±0.5 LSB DNL (max) Wiper Accuracy
S
Power-On Sets Wiper to Midscale
S
50ppm/NC End-to-End Temperature Coefficient
S
5ppm/NC Ratiometric Temperature Coefficient
S
-40NC to +125NC Operating Temperature Range
S
2mm x 2mm, 8-Pin TDFN Package
S
SPI-Compatible Serial Interface
Applications
Portable Electronics
System Calibration
Battery-Powered Systems
Automotive Electronics
Mechanical Potentiometer Replacement
Typical Operating Circuit
19-6392; Rev 1; 9/12
Ordering Information appears at end of data sheet.
For related parts and recommended products to use with this part, refer to: www.maximintegrated.com/MAX5394.related
SPI
INTERFACE
1.7V TO 5.5V
(CHARGE PUMP ENABLED)
H
W
L
R1
VS
VO
+5V
VDD
MAX5394
MAX4250
GND
VO/VS = 1 + RMAX5394/R1
DIN
SCLK
CS
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
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