DS8921

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Datenblatt

document-pdfAcrobat DS8921x Differential Line Driver and Receiver Pair datasheet (Rev. D) (Englisch) PDF | HTML

DS8921

AKTIV

Datenblatt

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Produktdetails

Number of receivers

1

Number of transmitters

1

Duplex

Full

Supply voltage (nom) (V)

5

Signaling rate (max) (Mbps)

10

IEC 61000-4-2 contact (±V)

None

Fault protection (V)

-12 to 12

Common-mode range (V)

-7 to 7

Number of nodes

32

Isolated

No

Supply current (max) (µA)

35000

Rating

Catalog

Operating temperature range (°C)

-40 to 85

Number of receivers

1

Number of transmitters

1

Duplex

Full

Supply voltage (nom) (V)

5

Signaling rate (max) (Mbps)

10

IEC 61000-4-2 contact (±V)

None

Fault protection (V)

-12 to 12

Common-mode range (V)

-7 to 7

Number of nodes

32

Isolated

No

Supply current (max) (µA)

35000

Rating

Catalog

Operating temperature range (°C)

-40 to 85

SOIC (D)

8

29.4 mm² 4.9 x 6

12-ns Typical Propagation Delay
Output Skew: 0.5 ns Typical
Meets the Requirements of EIA Standard RS-422
Complementary Driver Outputs
High Differential or Common-Mode Input Voltage
Ranges of ±7 V
±0.2 V Receiver Sensitivity Over the
Input Voltage Range
Receiver Input Hysteresis: 70 mV Typical
DS8921AT Industrial Temperature Operation:
(–40°C to +85°C)

12-ns Typical Propagation Delay
Output Skew: 0.5 ns Typical
Meets the Requirements of EIA Standard RS-422
Complementary Driver Outputs
High Differential or Common-Mode Input Voltage
Ranges of ±7 V
±0.2 V Receiver Sensitivity Over the
Input Voltage Range
Receiver Input Hysteresis: 70 mV Typical
DS8921AT Industrial Temperature Operation:
(–40°C to +85°C)

The DS8921, DS8921A, and DS8921AT devices are differential line driver and receiver pairs designed specifically for applications meeting the ST506, ST412, and ESDI disk drive standards. In addition, these devices meet the requirements of the EIA standard RS-422.

The DS8921x receivers offer an input sensitivity of 200 mV over a &plsumn;7 V common mode operating range. Hysteresis is incorporated (typically 70 mV) to improve noise margin for slowly changing input waveforms.

The DS8921x drivers are designed to provide unipolar differential drive to twisted-pair or parallel wire transmission lines. Complementary outputs are logically ANDed and provide an output skew of 0.5 ns (typical) with propagation delays of 12 ns.

The DS8921x devices are designed to be compatible with TTL and CMOS.

The DS8921, DS8921A, and DS8921AT devices are differential line driver and receiver pairs designed specifically for applications meeting the ST506, ST412, and ESDI disk drive standards. In addition, these devices meet the requirements of the EIA standard RS-422.

The DS8921x receivers offer an input sensitivity of 200 mV over a &plsumn;7 V common mode operating range. Hysteresis is incorporated (typically 70 mV) to improve noise margin for slowly changing input waveforms.

The DS8921x drivers are designed to provide unipolar differential drive to twisted-pair or parallel wire transmission lines. Complementary outputs are logically ANDed and provide an output skew of 0.5 ns (typical) with propagation delays of 12 ns.

The DS8921x devices are designed to be compatible with TTL and CMOS.

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	Typ	Titel		Datum
*	Data sheet	DS8921x Differential Line Driver and Receiver Pair datasheet (Rev. D)	PDF \| HTML	21 Jan 2015
	Application note	HS, Low Skew RS-422 Drvrs & Receivers Solve Critical System Timing Problems (Rev. A)		26 Apr 2013

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