APT7843NI 查看數據表（PDF） - Anpec Electronics

零件编号

产品描述 (功能)

生产厂家

APT7843NI

Touch Screen Controller

Anpec Electronics 

APT7843

Electrical Characteristics

At TA = -40°C to 85°C, VCC = +2.4V , VREF don’t care, fSAMPLE = 1.25KHz, fCLK = 16 • f SAMPLE = 20KHz, 8-bit

differential mode, no support single end mode, and digital inputs = GND or Vcc , unless otherwise noted.

PARAMETER

DC ACCURACY

Resolution

No missing code

Integral Nonlinearity

Offset Error

Offset Error Match

Gain Error

Gain Error Match

Noise

Power Supply Rejection

DYNAMIC PERFORENCE

Aperture Delay

Aperture Jitter

Channel to Channel Isolation

CONVERSION RATE

Conversion Time

Track/Hold Acquisition Time

Throughput Rate

SWITCH DRIVERS

On-Resistance

Y+ , X+

Y- , X-

LOGIC OUTPUTS

Output High Voltage , VOH

Output Low Voltage , VOL

PENIRQ output low voltage , VOL

Floating-State Leakage Current

Floating-State Output Capacitance

Output Coding

CONDITIONS

VIN = 2.5Vp-p ; FIN = 50kHz

|IOH| ≤ -250µA

|IOL| ≤ 250µA

APT7843

MIN TYP MAX

UNITS

8

Bits

7

Bits

±2

LSB

±6

LSB

0.1

1

LSB

±4

LSB

0.1

1

LSB

30

uV rms

70

dB

30

ns

100

ps

100

dB

12 DCLK cycles

3

DCLK cycles

1.25

KSPS

4

Ω

4

Ω

Vcc–0.2

V

0.4

V

0.2

V

± 10

µA

10

pF

Straight ( Natural ) Binary

Copyright  ANPEC Electronics Corp.

5

Rev. A.8 - Apr., 2002

www.anpec.com.tw

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