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Datasheet AD7740 (Analog Devices) - 7

ПроизводительAnalog Devices
Описание3 V/5 V Low Power, Synchronous Voltage-to-Frequency Converter
Страниц / Страница13 / 7 — AD7740–Typical Performance Characteristics. 0.015. 0.1. VDD = 5V. BUFFER. …
ВерсияC
Формат / Размер файлаPDF / 330 Кб
Язык документаанглийский

AD7740–Typical Performance Characteristics. 0.015. 0.1. VDD = 5V. BUFFER. REFIN = 2.5V. OFF. 0.01. CLKIN = 1MHz. TA = 25. 0.05. A = 25. 0.005

AD7740–Typical Performance Characteristics 0.015 0.1 VDD = 5V BUFFER REFIN = 2.5V OFF 0.01 CLKIN = 1MHz TA = 25 0.05 A = 25 0.005

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AD7740–Typical Performance Characteristics 0.015 –4 0.1 VDD = 5V VDD = 5V BUFFER REFIN = 2.5V REFIN = 2.5V OFF 0.01 CLKIN = 1MHz TA = 25 C T 0.05 A = 25 C –5 0.005 mV BUFFER OFF BUFFER ON BUFFER ON % Span – 0 –6 0 –0.005 BUFFER ON INL ERROR – % of Span OFFSET ERROR –7 –0.05 GAIN ERROR VDD = 5V –0.01 BUFFER OFF REFIN = 2.5V TA = 25 C –0.015 –8 –0.1 –0.5 0 0.5 1 1.5 2 2.5 0 200 400 600 800 1000 0 200 400 600 800 1000 VIN – V CLKIN FREQUENCY – kHz CLKIN FREQUENCY – kHz
TPC 1. INL vs. VIN (Buffered and TPC 2. Offset Error vs. CLKIN TPC 3. Gain Error vs. CLKIN Unbuffered) (Buffered and Unbuffered) (Buffered and Unbuffered)
12 0.08 –50 1.25 REFIN = 2.5V BUFFER OFF CLKIN = 1MHz 8 T GAIN ERROR A = 25 C 0.04 1 BUFFER ON BUF = 0 mV – –60 4 0 % Span BUFFER ON 0.75 dB – mA GAIN ERROR 0 –0.04 I DD BUFFER OFF PSRR 0.5 –70 VDD = 5V OFFSET ERROR OFFSET ERROR GAIN ERROR VDD = 5V REFIN = 5V –4 –0.08 REFIN = 4.75V T 0.25 A = 25 C CLKIN = 1MHz CFOUT = 43pF TA = 25 C CCLKOUT = 22pF –8 –0.12 0 3 4 5 6 –80 0 –1 0 1 2 3 4 5 0 200 400 600 800 1000 VDD – V VIN – V CLKIN FREQUENCY – kHz
TPC 4. Offset and Gain Error vs. VDD TPC 5. PSRR vs. VIN (Buffered and TPC 6. IDD vs. CLKIN (Buffered and Unbuffered) Unbuffered)
2.520 TA = 25 C 2.515 FOUT V – 1 VDD = 5V 2.510 REFIN = 5V TA = 25 C REFOUT CLKIN CLKIN 1 MHz 2.505 2 2.500 CH1 2.00V CH2 2.00V M 2.00 s 2.5 3.0 3.5 4.0 4.5 5.0 5.5 VDD – V
TPC 7. REFOUT vs. VDD TPC 8. Typical FOUT Pulse Train (VIN = VREF/4) –6– REV. C
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