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See Technical Specifications

DS2125

SCSI Termination 3.3V/5V 110Ohm 48-Pin LQFP

Manufacturer:

Analog Devices, Inc
Mfr.Part #:

DS2125
Datasheet:

DS2125 Datasheet (PDF)
Type:

SCSI, LVD, SE
Number of Terminations:

15
Voltage - Supply:

2.7V ~ 5.5V
Operating Temperature:

0°C ~ 70°C
EDA/CAD Models:

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DS2125 General Description

The DS2125 Ultra3 LVD/SE SCSI terminator is both a low-voltage differential (LVD) and single-ended (SE) terminator. For the LVD termination, the DS2125 integrates two current sources with 15 precision resistor strings. For the SE termination, one regulator and 15 precision 110Ω resistors are used. Two DS2125 terminators are needed for a wide SCSI bus.

Key Features

Fully Compliant with Ultra3 SCSI
Provides Multimode Low-Voltage
Differential/Single-Ended (LVD/SE)
Termination for 15 Signal Line Pairs
Auto-Selection of LVD or SE Termination
5% Tolerance on SE and LVD Termination
Resistance
Low 3pF Power-Down Capacitance
On-Board Thermal-Shutdown CircuitrySCSI Bus Hot-Plug Compatible
Fully Supports Actively Negated SE SCSI
Signals

Application

Raid Systems
SCSI Host Bus Adapter (HBA) Cards
Servers
SCSI Cables
Network Attached Storage (NAS)
Storage Area Networks (SANs)

Specifications

Category	Integrated Circuits (ICs)InterfaceSignal Terminators	Series	-
Type	SCSI, LVD, SE	Number of Terminations	15
Voltage - Supply	2.7V ~ 5.5V	Operating Temperature	0°C ~ 70°C
Mounting Type	Surface Mount	Base Product Number	DS2125
Product Category	SCSI Interface IC	Supply Voltage - Max	5.5 V
Supply Voltage - Min	2.7 V	Operating Supply Current	32 mA
Minimum Operating Temperature	0 C	Maximum Operating Temperature	+ 70 C
Mounting Style	SMD/SMT	Height	1.45 mm
Length	7.1 mm	Number of Bits	15
Operating Supply Voltage	2.7 V to 5.5 V	Product Type	SCSI Interface IC
Resistance	110 Ohms	Subcategory	Interface ICs
Width	7.1 mm	Unit Weight	0.319998 oz