AD7877(RevA) 查看數據表（PDF） - Analog Devices

零件编号

产品描述 (功能)

生产厂家

AD7877
(Rev.:RevA)

Touch Screen Controller

Analog Devices 

∆: 144mV

@: 1.296V

1

CH1 200mV CH2 100mV

VDD = 3V

TEMPERATURE = 25°C

M2.00µs

CH1 780mV

Figure 23. DAC O/P Settling Time (Zero Scale to Half-Scale)

600

500

400

DAC SINK CURRENT

300

200

100

0

0 25 50 75 100 125 150 175 200 225 250

INPUT CODE (Decimal)

Figure 24. DAC Sink Current vs. Input Code

AD7877

–2

–1

0

1

2

ERROR (%)

Figure 25. Typical Accuracy for Battery Channel (25°C)

Rev. A | Page 13 of 44

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