AD7843ARU-REEL Analog Devices Inc, AD7843ARU-REEL Datasheet - Page 3

• Manufacturer Part Number: AD7843ARU-REEL
• Description: IC ADC 12BIT TOUCHSCREEN 16TSSOP
• Manufacturer: Analog Devices Inc
• Type: Resistiver

Specifications of AD7843ARU-REEL

• Touch Panel Interface: 4-Wire
• Number Of Inputs/keys: 1 TSC
• Resolution (bits): 12 b
• Data Interface: Serial
• Data Rate/sampling Rate (sps, Bps): 125k
• Voltage Reference: External
• Voltage - Supply: 2.2 V ~ 5.25 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-TSSOP
• Voltage Supply Source: Single Supply
• Sampling Rate (per Second): 125k
• For Use With: EVAL-AD7843EBZ - BOARD EVAL FOR AD7843
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

SPECIFICATIONS
V
Table 1.
Parameter
DC ACCURACY
SWITCH DRIVERS
ANALOG INPUT
REFERENCE INPUT
LOGIC INPUTS
LOGIC OUTPUTS
CONVERSION RATE
Footnotes on next page.
CC
Resolution
No Missing Codes
Integral Nonlinearity
Offset Error
Offset Error Match
Gain Error
Gain Error Match
Power Supply Rejection
On-Resistance
Input Voltage Ranges
DC Leakage Current
Input Capacitance
V
DC Leakage Current
V
V
Input High Voltage, V
Input Low Voltage, V
Input Current, I
Input Capacitance, C
Output High Voltage, V
Output Low Voltage, V
PENIRQ Output Low Voltage, V
Floating-State Leakage Current
Floating-State Output Capacitance
Output Coding
Conversion Time
Track-and-Hold Acquisition Time
Throughput Rate
REF
REF
REF
= 2.7 V to 3.6 V, V
Y+, X+
Y−, X−
Input Voltage Range
Input Impedance
Input Current
2
2
2
IN
3
3
3
REF
2
IN
INL
INH
4
OL
= 2.5 V, f
OH
OL
SCLK
4
= 2 MHz, T
AD7843A
12
11
±2
±6
1
0.1
±4
1
0.1
70
5
6
0 to V
±0.1
37
1.0/+V
±1
5
20
1
1
2.4
0.4
±1
10
V
0.4
0.4
±10
10
Straight (Natural) Binary
12
3
125
CC
− 0.2
REF
CC
A
= −40°C to +85°C, unless otherwise noted.
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Rev. B | Page 3 of 20
Unit
Bits
Bits min
LSB max
LSB max
LSB max
LSB typ
LSB max
LSB max
LSB typ
dB typ
Ω typ
Ω typ
V
µA typ
pF typ
V min/max
µA max
GΩ typ
µA max
µA typ
µA max
V min
V max
µA max
pF max
V min
V max
V max
µA max
pF max
DCLK Cycles max
DCLK Cycles min
kSPS max
Test Conditions/Comments
V
CS = GND or +V
8 µA typ
f
CS = +V
Typically 10 nA, V
I
I
I
SOURCE
SINK
SINK
SAMPLE
CC
= 2.7 V
= 250 µA
= 250 µA; 100 kW pull-up
= 12.5 kHz
= 250 µA; V
CC
; 0.001 µA typ
CC
IN
CC
= 0 V or +V
= 2.2 V to 5.25 V
CC
AD7843