ADC104S021

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SNAS278H – FEBRUARY 2005 – REVISED MARCH 2013

ADC104S021/ADC104S021Q Converter Electrical Characteristics

(1)(2) (continued)

Symbol

Parameter

Conditions

Typical

Units

±0.01

±1

µA (max)

TRI-STATE® Output Capacitance

2

4

pF (max)

Output Coding

Straight (Natural) Binary

2.7

V (min)

Supply Voltage

5.25

V (max)

1.3

1.8

mA (max)

Supply Current, Normal Mode

(Operational, CS low)

0.55

0.7

mA (max)

90

nA

Supply Current, Shutdown (CS high)

32

nA

6.9

9.5

mW (max)

Power Consumption, Normal Mode

(Operational, CS low)

1.94

2.5

mW (max)

0.47

µW

Power Consumption, Shutdown (CS

high)

0.12

µW

AC ELECTRICAL CHARACTERISTICS

0.8

MHz (min)

Clock Frequency

(4)

3.2

MHz (max)

50

ksps (min)

Sample Rate

(4)

200

ksps (max)

Conversion Time

13

SCLK cycles

30

% (min)

DC

SCLK Duty Cycle

50

70

% (max)

Track/Hold Acquisition Time

Full-Scale Step Input

3

SCLK cycles

Throughput Time

Acquisition Time + Conversion Time

16

SCLK cycles

(4)

This is the frequency range over which the electrical performance is ensured. The device is functional over a wider range which is

specified under Operating Ratings.

ADC104S021/ADC104S021Q Timing Specifications

(1)

Symbol

Parameter

Conditions

Typical

Units

−3.5

Setup Time SCLK High to CS Falling Edge

(3)

10

ns (min)

−0.5

+4.5

Hold time SCLK Low to CS Falling Edge

(3)

10

ns (min)

+1.5

+4

Delay from CS Until DOUT active

30

ns (max)

+2

+16.5

Data Access Time after SCLK Falling Edge

30

ns (max)

+15

Data Setup Time Prior to SCLK Rising Edge

+3

10

ns (min)

(1)

PPAP (Production part Approval Process) documentation of the device technology, process and qualification is available from Texas

Instruments upon request.

(2)

Tested limits are ensured to TI's AOQL (Average Outgoing Quality Level).

(3)

Copyright © 2005–2013, Texas Instruments Incorporated

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