Product Summary

The DS8921AM is a Differential Line Driver and Receiver pair designed specifically for applications meeting the ST506, ST412 and ESDI Disk Drive Standards. In addition, the device meets the requirements of the EIA Standard RS-422. TheDS8921AM offers an input sensitivity of 200 mV over a ±7V common mode operating range. It is 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 (typ.) with propagation delays of 12 ns. The DS8921AM are designed to be compatible with TTL and CMOS.

Parametrics

DS8921AM absolute maximum ratings: (1)Supply Voltage: 7V; (2)Driver Input Voltage: -0.5V to +7V; (3)Output Voltage: 5.5V; (4)Receiver Output Sink Current: 50 mA; (5)Receiver Input Voltage: ±10V; (6)Differential Input Voltage: ±12V; (7)Maximum Package Power Dissipation @ +25℃, M Package: 730 mW; N Package: 1160 mW; (8)Derate M Package: 9.3 mW/℃ above +25℃; (9)Derate N Package: 5.8 mW/℃ above +25℃; (10)Storage Temperature Range: -65℃ to +165℃; (11)Lead Temperature: +260℃; (12)Maximum Junction Temperature: +150℃.

Features

DS8921AM features: (1)12 ns typical propagation delay; (2)Output skew - 0.5 ns typical; (3)Meet the requirements of EIA Standard RS-422; (4)Complementary Driver Outputs; (5)High differential or common-mode input voltage ranges of ±7V; (6)±0.2V receiver sensitivity over the input voltage range; (7)Receiver input hysteresis-70 mV typical; (8)DS8921AT industrial temperature operation: (.40℃ to +85℃).

Diagrams

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
DS8921AM
DS8921AM

National Semiconductor (TI)

Bus Receivers

Data Sheet

0-760: $0.44
760-1045: $0.41
1045-2565: $0.39
2565-5035: $0.37
DS8921AM/NOPB
DS8921AM/NOPB

National Semiconductor (TI)

Bus Receivers DIFF LINE DRVRS AND RECEIVER PAIR

Data Sheet

0-1: $0.83
1-25: $0.67
25-100: $0.59
100-250: $0.51
DS8921AMX/NOPB
DS8921AMX/NOPB

National Semiconductor (TI)

Bus Receivers

Data Sheet

0-1: $1.03
1-25: $0.82
25-100: $0.72
100-250: $0.63
DS8921AMX
DS8921AMX

National Semiconductor (TI)

Bus Receivers

Data Sheet

0-2500: $0.41
2500-5000: $0.39
5000-10000: $0.37