VDD
參數(shù)資料
型號(hào): AD5235BRUZ25
廠商: Analog Devices Inc
文件頁(yè)數(shù): 27/32頁(yè)
文件大?。?/td> 0K
描述: IC DGTL POT DUAL 1024POS 16TSSOP
產(chǎn)品變化通告: Metal Edit Change 03/Feb/2012
標(biāo)準(zhǔn)包裝: 96
接片: 1024
電阻(歐姆): 25k
電路數(shù): 2
溫度系數(shù): 標(biāo)準(zhǔn)值 35 ppm/°C
存儲(chǔ)器類(lèi)型: 非易失
接口: 4 線(xiàn) SPI(芯片選擇)
電源電壓: 3 V ~ 5.5 V,±2.25 V ~ 2.75 V
工作溫度: -40°C ~ 85°C
安裝類(lèi)型: 表面貼裝
封裝/外殼: 16-TSSOP(0.173",4.40mm 寬)
供應(yīng)商設(shè)備封裝: 16-TSSOP
包裝: 管件
產(chǎn)品目錄頁(yè)面: 787 (CN2011-ZH PDF)
AD5235
Data Sheet
Rev. F | Page 4 of 32
SPECIFICATIONS
ELECTRICAL CHARACTERISTICS—25 k, 250 k VERSIONS
VDD = 2.7 V to 5.5 V, VSS = 0 V; VDD = 2.5 V, VSS = 2.5 V, VA = VDD, VB = VSS, 40°C < TA < +85°C, unless otherwise noted.
These specifications apply to versions with a date code 1209 or later.
Table 1.
Parameter
Symbol
Conditions
Min
Typ1
Max
Unit
DC CHARACTERISTICS—RHEOSTAT
MODE (All RDACs)
Resistor Differential Nonlinearity2
R-DNL
RWB
1
+1
LSB
Resistor Integral Nonlinearity2
R-INL
RWB
2
+2
LSB
Nominal Resistor Tolerance
RAB/RAB
8
+8
%
Resistance Temperature Coefficient
(RAB/RAB)/T × 106
35
ppm/°C
Wiper Resistance
RW
IW = 1 V/RWB, code = midscale
VDD = 5 V
30
60
VDD = 3 V
50
Nominal Resistance Match
RAB1/RAB2
±0.1
%
DC CHARACTERISTICS—
POTENTIOMETER DIVIDER MODE
(All RDACs)
Resolution
N
10
Bits
Differential Nonlinearity3
DNL
1
+1
LSB
Integral Nonlinearity3
INL
1
+1
LSB
Voltage Divider Temperature
Coefficient
(VW/VW)/T × 106
Code = midscale
15
ppm/°C
Full-Scale Error
VWFSE
Code = full scale
6
0
LSB
Zero-Scale Error
VWZSE
Code = zero scale
0
4
LSB
RESISTOR TERMINALS
Terminal Voltage Range4
VA, VB, VW
VSS
VDD
V
Capacitance Ax, Bx5
CA, CB
f = 1 MHz, measured to GND,
code = midscale
11
pF
Capacitance Wx5
CW
f = 1 MHz, measured to GND,
code = midscale
80
pF
Common-Mode Leakage Current5, 6
ICM
VW = VDD/2
0.01
±1
A
DIGITAL INPUTS AND OUTPUTS
Input Logic High
VIH
With respect to GND, VDD = 5 V
2.4
V
Input Logic Low
VIL
With respect to GND, VDD = 5 V
0.8
V
Input Logic High
VIH
With respect to GND, VDD = 3 V
2.1
V
Input Logic Low
VIL
With respect to GND, VDD = 3 V
0.6
V
Input Logic High
VIH
With respect to GND, VDD = +2.5 V,
VSS = 2.5 V
2.0
V
Input Logic Low
VIL
With respect to GND, VDD = +2.5 V,
VSS = 2.5 V
0.5
V
Output Logic High (SDO, RDY)
VOH
RPULL-UP = 2.2 k to 5 V (see
4.9
V
Output Logic Low
VOL
IOL = 1.6 mA, VLOGIC = 5 V (see
0.4
V
Input Current
IIL
VIN = 0 V or VDD
±1
A
Input Capacitance5
CIL
5
pF
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