EVAL-AD7877EBZ Analog Devices Inc, EVAL-AD7877EBZ Datasheet - Page 4

• Manufacturer Part Number: EVAL-AD7877EBZ
• Description: BOARD EVALUATION FOR AD7877
• Manufacturer: Analog Devices Inc

Specifications of EVAL-AD7877EBZ

• Main Purpose: Interface, Touch Screen Controller
• Embedded: No
• Utilized Ic / Part: AD7877
• Primary Attributes: 4-Wire Resistive Touch Screen Controller, SPI Interface, On-Chip: Temp Sensor, Voltage Reference, 8-Bit DAC
• Secondary Attributes: USB GUI, LCD Noise Reduction Feature, 2.7 ~ 5.25 V, Wake Up on Touch Feature
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

AD7877
Parameter
LOGIC INPUTS
LOGIC OUTPUTS
CONVERSION RATE
POWER REQUIREMENTS
1
2
3
4
See the Terminology section.
Difference between Temp0 and Temp1 measurement. No calibration necessary.
Temperature drift is −2.1 mV/°C.
Sample tested @ 25°C to ensure compliance.
Current Mode
Input High Voltage, V
Input Low Voltage, V
Input Current, I
Input Capacitance, C
Output High Voltage, V
Output Low Voltage, V
Floating-State Leakage Current
Floating-State Output Capacitance
Output Coding
Conversion Time
Throughput Rate
V
V
I
CC
CC
DRIVE
Capacitive Load Stability
Output Impedance
Short-Circuit Current
Output Current Range
Output Impedance
Converting Mode
Static
Shutdown Mode
(Specified Performance)
IN
INL
IN
INH
4
OL
OH
4
Min
0
0.7 V
V
2.7
1.65
DRIVE
DRIVE
− 0.2
Typ
75
21
650
900
150
50
8
125
240
Rev. B | Page 4 of 44
Max
100
1000
Open
0.3
V
±1
10
0.4
±10
10
3.6
V
380
900
1
DRIVE
CC
Unit
pF
kΩ
mA
μA
V
V
μA
pF
V
V
μA
pF
μs
kSPS
V
V
μA
μA
μA
μA
μA
DAC register, Bit 2 = 1; full-scale current is set by R
Test Conditions/Comments
R
Power-down mode
Power-down mode
Typically 10 nA, V
I
I
Straight (natural) binary
CS high to DAV low
Functional from 2.2 V to 5.25 V
Digital I/Ps = 0 V or V
ADC on, internal reference off, V
ADC on, internal reference on, V
ADC on, internal reference on, DAC on
ADC on, but not converting, internal reference off,
V
SOURCE
SINK
LOAD
CC
= 3.6 V
= 250 μA
= 10 kΩ
= 250 μA, V
IN
CC
= 0 V or V
/V
CC
DRIVE
= 2.7 V to 5.25 V
CC
CC
CC
= 3.6 V
= 3.6 V
RNG