ADC08100 datasheet(3/28 Pages) TI1

No. de pieza	ADC08100

Descripción Electrónicos	ADC08100 8-Bit, 20 Msps to 100 Msps, 1.3 mW/Msps A/D Converter

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Fabricante Electrónico	TI1 [Texas Instruments]

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ADC08100

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SNAS060I – JUNE 2000 – REVISED MAY 2013

PIN DESCRIPTIONS AND EQUIVALENT CIRCUITS (continued)

Pin No.

Symbol

Equivalent Circuit

Description

13 thru 16

Conversion data digital Output pins. D0 is the LSB, D7 is the

and

D0–D7

MSB. Valid data is output just after the rising edge of the CLK

19 thru 22

input.

7

VIN GND

Reference ground for the single-ended analog input, VIN.

Positive analog supply pin. Connect to a clean, quiet voltage

source of +3V. VA should be bypassed with a 0.1 µF ceramic

1, 4, 12

VA

chip capacitor for each pin, plus one 10 µF capacitor. See

POWER SUPPLY CONSIDERATIONS for more information.

Power supply for the output drivers. If connected to VA,

18

DR VD

decouple well from VA.

17

DR GND

The ground return for the output driver supply.

2, 5, 8, 11

AGND

The ground return for the analog supply.

These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam

during storage or handling to prevent electrostatic damage to the MOS gates.

Absolute Maximum Ratings

(1) (2) (3)

Supply Voltage (VA)

3.8V

Driver Supply Voltage (DR VD)

VA + 0.3V

Voltage on Any Input or Output Pin

−0.3V to VA

Reference Voltage (VRT, VRB)

VA to AGND

CLK, OE Voltage Range

−0.3V to

(VA + 0.3V)

Digital Output Voltage (VOH, VOL)

DR GND to DR VD

Input Current at Any Pin(4)

±25 mA

Package Input Current(4)

±50 mA

Power Consumption at TA = 25°C

See(5)

ESD Susceptibility(6)

Human Body Model

2500V

Machine Model

250V

Soldering Temperature, Infrared, 10 seconds

235°C

Storage Temperature

−65°C to +150°C

(1)

All voltages are measured with respect to GND = AGND = DR GND = 0V, unless otherwise specified.

(2)

Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for

which the device is functional, but do not ensure specific performance limits. For ensured specifications and test conditions, see

Converter Electrical Characteristics. The ensured specifications apply only for the test conditions listed. Some performance

characteristics may degrade when the device is not operated under the listed test conditions.

(3)

If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/Distributors for availability and

specifications.

(4)

When the input voltage at any pin exceeds the power supplies (that is, less than AGND or DR GND, or greater than VA or DR VD), the

current at that pin should be limited to 25 mA. The 50 mA maximum package input current rating limits the number of pins that can

safely exceed the power supplies with an input current of 25 mA to two.

(5)

The absolute maximum junction temperature (TJmax) for this device is 150°C. The maximum allowable power dissipation is dictated by

TJmax, the junction-to-ambient thermal resistance (θJA), and the ambient temperature (TA), and can be calculated using the formula

PDMAX = (TJmax − TA) / θJA. In the 24-pin TSSOP, θJA is 92°C/W. The power consumption of this device under normal operating

conditions is far below the package limit, which will be reached only when the ADC08100 is operated in a severe fault condition (e.g.,

when input or output pins are driven beyond the power supply voltages, or the power supply polarity is reversed). Obviously, such

conditions should always be avoided.

(6)

Human body model is 100 pF capacitor discharged through a 1.5 k

Ω resistor. Machine model is 220 pF discharged through ZERO

Ohms.

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