參數(shù)資料
型號(hào): AD7877ACBZ-REEL
廠商: Analog Devices Inc
文件頁(yè)數(shù): 41/45頁(yè)
文件大小: 0K
描述: IC CTRLR TOUCH SCREEN 25-WLCSP
標(biāo)準(zhǔn)包裝: 10,000
類(lèi)型: 電阻
觸摸面板接口: 4 線
輸入數(shù)/鍵: 1 TSC
分辨率(位): 12 b
評(píng)估套件: 可供
數(shù)據(jù)接口: 串行,SPI?
數(shù)據(jù)速率/采樣率 (SPS,BPS): 125k
電壓基準(zhǔn): 外部,內(nèi)部
電源電壓: 2.7 V ~ 5.25 V
電流 - 電源: 1µA
工作溫度: -40°C ~ 85°C
安裝類(lèi)型: 表面貼裝
封裝/外殼: 25-UFBGA,WLCSP
供應(yīng)商設(shè)備封裝: 25-WLCSP
包裝: 帶卷 (TR)
配用: EVAL-AD7877EBZ-ND - BOARD EVALUATION FOR AD7877
AD7877
Data Sheet
Rev. D | Page 4 of 44
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
DAC
Resolution
8
Bits
Integral Nonlinearity
±1
Bits
Differential Nonlinearity
±1
Guaranteed monotonic by design
Voltage Mode
Output Voltage Range
0 VCC/2
V
DAC register Bit 2 = 0, Bit 0 = 0
0 VCC
V
DAC register Bit 2 = 0, Bit 0 = 1
Slew Rate
0.4, +0.5
V/s
Output Settling Time
12
15
s
0 to 3/4 scale, RLOAD = 10 k, CLOAD = 50 pF
Capacitive Load Stability
50
100
pF
RLOAD = 10 k
Output Impedance
75
k
Power-down mode
Short-Circuit Current
21
mA
Current Mode
Output Current Range
0
1000
A
DAC register, Bit 2 = 1; full-scale current is set by RRNG
Output Impedance
Open
Power-down mode
LOGIC INPUTS
Input High Voltage, VINH
0.7 VDRIVE
V
Input Low Voltage, VINL
0.3
VDRIVE
V
Input Current, IIN
±1
A
Typically 10 nA, VIN = 0 V or VCC
Input Capacitance, CIN4
10
pF
LOGIC OUTPUTS
Output High Voltage, VOH
VDRIVE 0.2
V
ISOURCE = 250 A, VCC/VDRIVE = 2.7 V to 5.25 V
Output Low Voltage, VOL
0.4
V
ISINK = 250 A
Floating-State Leakage Current
±10
A
Floating-State Output Capacitance4
10
pF
Output Coding
Straight (natural) binary
CONVERSION RATE
Conversion Time
8
s
CS high to DAV low
Throughput Rate
125
kSPS
POWER REQUIREMENTS
VCC (Specified Performance)
2.7
3.6
V
Functional from 2.2 V to 5.25 V
VDRIVE
1.65
VCC
V
ICC
Digital inputs = 0 V or VCC
Converting Mode
240
380
A
ADC on, internal reference off, VCC = 3.6 V
650
900
A
ADC on, internal reference on, VCC = 3.6 V
900
A
ADC on, internal reference on, DAC on
Static
150
A
ADC on, but not converting, internal reference off,
VCC = 3.6 V
Shutdown Mode
1
A
1
See the Terminology section.
2
Difference between Temp0 and Temp1 measurement. No calibration necessary.
3
Temperature drift is 2.1 mV/°C.
4
Sample tested @ 25°C to ensure compliance.
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