参数资料
型号: AD7877ACBZ-REEL
厂商: Analog Devices Inc
文件页数: 41/45页
文件大小: 0K
描述: IC CTRLR TOUCH SCREEN 25-WLCSP
标准包装: 10,000
类型: 电阻
触摸面板接口: 4 线
输入数/键: 1 TSC
分辨率(位): 12 b
评估套件: 可供
数据接口: 串行,SPI?
数据速率/采样率 (SPS,BPS): 125k
电压基准: 外部,内部
电源电压: 2.7 V ~ 5.25 V
电流 - 电源: 1µA
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 25-UFBGA,WLCSP
供应商设备封装: 25-WLCSP
包装: 带卷 (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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