ADM232AARN-REEL datasheet(4/11 Pages) AD

部品番号	ADM232AARN-REEL

部品情報	High-Speed, 5 V, 0.1 F CMOS RS-232 Drivers/Receivers

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REV.

ADM222/ADM232A/ADM242

–4–

VIN

VOUT

50pF

3k

SHDN

Figure 5. Shutdown Test Circuit

+ 5V

TRANSMITTER

OUTPUT

SHDN

INPUT

– 5V

V+

0V

3V

V–

tDT

Figure 6. Transmitter Shutdown Disable Timing

2

4

6

5

12

11

13

10

3

7

15

8

14

9

18

* INTERNAL 400k PULL-UP RESISTOR

ON EACH TTL/CMOS INPUT

** INTERNAL 5k PULL-DOWN RESISTOR

ON EACH RS-232 INPUT

+5V TO +10V

VOLTAGE DOUBLER

+5V TO –10V

VOLTAGE INVERTER

C1+

C1–

V+

V–

C2+

C2–

T1

ADM222

T2

R1

R2

C1

0.1 F

C2

0.1 F

C3

0.1 F

GND

TTL/CMOS

OUTPUTS

R1OUT

R2OUT

T1OUT

T2OUT

R1IN

R2IN

T1IN

T2IN

TTL/CMOS

INPUTS

*

RS-232

OUTPUTS

RS-232

INPUTS

**

5V INPUT

C5

0.1 F

6.3V

SHDN

16

C4

0.1 F

VCC

17

Figure 7. ADM222 Typical Operating Circuit

PIN FUNCTION DESCRIPTION

Mnemonic

Function

VCC

Power Supply Input, 5 V

± 10%.

V+

Internally generated positive supply (+10 V

nominal).

V–

Internally generated negative supply (–10 V

nominal).

GND

Ground Pin. Must be connected to 0 V.

C1+

External capacitor 1, (+ terminal) is connected

to this pin.

C1–

External capacitor 1, (– terminal) is connected

to this pin.

C2+

External capacitor 2, (+ terminal) is connected

to this pin.

C2–

External capacitor 2, (– terminal) is connected

to this pin.

TIN

Transmitter (Driver) Inputs. These inputs accept

TTL/CMOS levels. An internal 400 k

Ω pull-up

resistor to VCC is connected on each input.

TOUT

Transmitter (Driver) Outputs. These are RS-232

levels (typically

±9 V).

RIN

Receiver Inputs. These inputs accept RS-232

signal levels. An internal 5 k

Ω pull-down resistor

to GND is connected on each of these inputs.

ROUT

Receiver Outputs. These are TTL/CMOS levels.

NC

No Connect. No connections are required to

this pin.

EN

(ADM242 Only) Active Low Digital Input. May

be used to enable or disable (three-state) both

receiver outputs.

SHDN

(ADM222 and ADM242) Active Low Digital

Input. May be used to disable the device so that

the power consumption is minimized. On the

ADM222 all drivers and receivers are disabled.

On the ADM242 the drivers are disabled but the

receivers remain enabled.

18

17

16

15

14

13

12

11

10

1

2

3

4

5

6

7

8

9

TOP VIEW

(Not to Scale)

ADM222

NC = NO CONNECT

R2IN

T2OUT

NC

C1+

V+

C1–

V–

C2–

C2+

T2IN

SHDN

VCC

GND

T1OUT

T1IN

R1OUT

R1IN

R2OUT

Figure 8. ADM222 DIP and SOIC Pin Configurations

B

同様の部品番号 - ADM232AARN-REEL

メーカー	部品番号	データシート	部品情報
Analog Devices	ADM232AARN-REEL7	207Kb / 11P	High-Speed, 5 V, 0.1 F CMOS RS-232 Drivers/Receivers REV. C

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