Datasheet > 1191

1191

更新时间： 2022-11-24 21:47:48

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页数	文件大小	规格书
27页	492K
描述
Ultra-Low-Power, 7.5Msps, Dual 8-Bit ADC

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1191 数据手册

Ultra-Low-Power, 7.5Msps, Dual 8-Bit ADC

ELECTRICAL CHARACTERISTICS (continued)

= 3.0V, OV

= 1.8V, V

= V

(internal reference), C ≈ 10pF at digital outputs, f

= 7.5MHz, C

= C = C

REFN COM

REFIN

CLK

REFP

= 0.33µF, T = -40°C to +85°C, unless otherwise noted. Typical values are at T = +25°C.) (Note 1)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Maximum REFP/REFN/COM Sink

Current

SINK

REFIN Input Resistance

REFIN Input Current

>500

-0.7

kΩ

µA

UNBUFFERED EXTERNAL REFERENCE (REFIN = GND, V

, V

, and V

are applied

COM

REFP REFN

REFP Input Voltage

REFN Input Voltage

COM Input Voltage

- V

0.256

REFP

REFN

COM

- V

-0.256

COM

/ 2

COM

Differential Reference Input

Voltage

- V

REFN

0.512

REF

REFP

REFP Input Resistance

Measured between REFP and COM

Measured between REFN and COM

kΩ

REFP

REFN

REFN Input Resistance

DIGITAL INPUTS (CLK, PD0, PD1)

0.7 x

CLK

Input High Threshold

Input Low Threshold

0.7 x

PD0, PD1

CLK

0.3 x

PD0, PD1

Input Hysteresis

0.1

HYST

CLK at GND or V

Digital Input Leakage Current

µA

PD0 and PD1 at OGND or OV

Digital Input Capacitance

DIGITAL OUTPUTS (D7–D0, A/B)

0.2 x

Output Voltage Low

Output Voltage High

= 200µA

SINK

0.8 x

I = 200µA

SOURCE

Tri-State Leakage Current

Tri-State Output Capacitance

POWER REQUIREMENTS

Analog Supply Voltage

µA

LEAK

OUT

2.7

1.8

3.0

3.6

Digital Output Supply Voltage

_______________________________________________________________________________________

1 2 345 6 7...27

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