Datasheet > ADM1491EBRMZ-REEL7

ADM1491EBRMZ-REEL7

更新时间： 2022-12-22 00:45:08

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
16页	343K
描述
16 Mbps, ESD Protected, Full-Duplex RS-485 Transceivers

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ADM1491EBRMZ-REEL7 数据手册

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ADM1490E/ADM1491E

SPECIFICATIONS

4.75 k ≤ k_CC≤ 5.25 k; all minimum/maximum specifications apply over the entire recommended operation range, unless otherwise

noted. All typical specifications are at T_A= 25°C, k_CC= 5.0 k, unless otherwise noted.

Table 1.

Parameter

Symbol Min

Typ Max Unit Test Conditions

SUPPLY CURRENT

Outputs Enabled

Outputs Disabled

DRIVER

I_CC1

I_CC2

1.2

0.8

2.0

1.5

Outputs unloaded, digital inputs = V_CCor GND

Differential Outputs

Differential Output Voltage, Loaded

|V_OD2

2.0

1.5

5.0

0.2

3.0

0.2

100

μA

R_L= 100 Ω (RS-422), see Figure 21

R_L= 54 Ω (RS-485), see Figure 21

−7 V ≤ V_TEST≤ +12 V, see Figure 22

R_L= 54 Ω or 100 Ω, see Figure 21

DE = 0 V, V_DD= 0 V or 5 V, V_IN= 12 V

DE = 0 V, V_DD= 0 V or 5 V, V_IN= −7 V

−7 V < V_OUT< +12 V

|V_OD3

∆|V_OD| for Complementary Output States

Common-Mode Output Voltage

∆|V_OC| for Complementary Output States

Output Leakage Current (Y, Z)

∆|V_OD2

V_OC

∆|V_OC|

I_O

I_OS

−100

Output Short-Circuit Current

Logic Inputs DE, RE, DI

Input Low Voltage

250

0.8

V_IL

V_IH

I_I

DE, RE, DI

Input High Voltage

Input Current

2.0

−1

μA

RECEIVER

Differential Inputs

Differential Input Threshold Voltage

Input Voltage Hysteresis

Input Current (A, B)

V_TH

V_HYS

I_I

−0.2

+0.2

1.0

−7 V < V_CM< +12 V

V_CM= 0 V

V_CM= 12 V

V_CM= −7 V

−7 V ≤ V_CM≤ +12 V

kΩ

−0.8

Line Input Resistance

Logic Outputs

R_IN

Output Voltage Low

V_OL

V_OH

0.4

μA

I_OUT= +4.0 mA, V_A− V_B= −0.2 V

I_OUT= −4.0 mA, V_A− V_B= +0.2 V

Output Voltage High

Short-Circuit Current

Three-State Output Leakage Current

4.0

I_OZR

V_CC= 5.25 V, 0.4 V < V_OUT< 2.4 V

Rev. B | Page 3 of 16

1 234 5 6 7...16

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