DS92001TMA Equivalent & Substitute Parts

Part Overview

The DS92001TMA is a Buffer/ReDriver interface IC manufactured by Texas Instruments, designed for single-channel BLVDS (Backplane Low Voltage Differential Signaling) applications with a maximum data rate of 400Mbps. The device features CML, LVDS, and LVPECL input compatibility with LVDS output, packaged in an 8-SOIC form factor. The main part is currently listed as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity.

Key Parameters

Parameter	DS92001TMA
Manufacturer	Texas Instruments
Type	Buffer, ReDriver
Applications	BLVDS
Input	CML, LVDS, LVPECL
Output	LVDS
Data Rate (Max)	400Mbps
Number of Channels	1
Delay Time	1.4ns
Voltage - Supply	3V ~ 3.6V
Current - Supply	50mA
Operating Temperature	-40°C ~ 85°C
Package / Case	8-SOIC (0.154", 3.90mm Width)
Product Status	Obsolete
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitution for the DS92001TMA is determined by the following critical parameters:

Single Channel Configuration: All substitutes must provide exactly 1 channel
Supply Voltage Range: 3V to 3.6V compatibility required
Operating Temperature: -40°C to 85°C range
Output Type: LVDS output required
Package Compatibility: Form factor and pin count must support board-level integration
Data Rate Capability: Minimum 400Mbps to maintain performance parity or exceed it
Product Status: Active status preferred for long-term availability

Substitutes are grouped into two categories based on package form factor: compact 8-pin packages (8-SOIC, 8-VFSOP) and larger 28-pin packages (28-TSSOP). Within each category, parts are differentiated by data rate capability, supply current, and delay characteristics.

Parameter Comparison

Part Number	Manufacturer	Data Rate (Max)	Channels	Input Type	Output Type	Voltage - Supply	Current - Supply	Delay Time	Package / Case	Product Status	RoHS Status
DS92001TMA	Texas Instruments	400Mbps	1	CML, LVDS, LVPECL	LVDS	3V ~ 3.6V	50mA	1.4ns	8-SOIC	Obsolete	RoHS non-compliant
DS92001TMA/NOPB	Texas Instruments	400Mbps	1	CML, LVDS, LVPECL	LVDS	3V ~ 3.6V	50mA	1.4ns	8-SOIC	Active	ROHS3 Compliant
FIN1101MX	Fairchild Semiconductor	1.6Gbps	1	LVDS, LVPECL	LVDS	3V ~ 3.6V	9.3mA	1.1ns	8-SOIC	Active	Not specified
FIN1101K8X	onsemi	1.6Gbps	1	LVDS, LVPECL	LVDS	3V ~ 3.6V	9.3mA	1.1ns	8-VFSOP	Active	ROHS3 Compliant
MAX9180EXT+T	Analog Devices Inc./Maxim Integrated	400Mbps	1	LVDS	LVDS	3V ~ 3.6V	10mA	2.0ns	6-TSSOP, SC-88, SOT-363	Active	ROHS3 Compliant
MAX9150EUI+	Analog Devices Inc./Maxim Integrated	400Mbps	1	LVDS	LVDS	3V ~ 3.6V	130mA	2.2ns	28-TSSOP	Active	ROHS3 Compliant
MAX9153EUI+	Analog Devices Inc./Maxim Integrated	800Mbps	1	LVDS	LVDS	3V ~ 3.6V	118mA	2.3ns	28-TSSOP	Active	ROHS3 Compliant
MAX9153EUI+T	Analog Devices Inc./Maxim Integrated	800Mbps	1	LVDS	LVDS	3V ~ 3.6V	118mA	2.3ns	28-TSSOP	Active	ROHS3 Compliant

Engineering Selection Recommendations

Direct Replacement (Same Package, Same Performance)

DS92001TMA/NOPB is the direct equivalent of DS92001TMA. Both devices share identical electrical specifications, single-channel LVDS redriver functionality, and 8-SOIC packaging. The primary distinction is product status and compliance: DS92001TMA/NOPB is active and ROHS3 compliant, whereas the original DS92001TMA is obsolete and RoHS non-compliant. This part is the preferred choice for designs requiring no PCB modifications.

High-Performance Compact Alternatives (8-Pin Packages)

FIN1101MX and FIN1101K8X both provide 1.6Gbps data rate capability, exceeding the 400Mbps specification of the original part. FIN1101MX uses an 8-SOIC package identical to DS92001TMA, while FIN1101K8X uses an 8-VFSOP package with a narrower 2.30mm width. Both devices operate within the same 3V to 3.6V supply range and feature lower supply current (9.3mA versus 50mA). FIN1101K8X carries ROHS3 compliance. These parts are suitable for designs where higher data rate margin and reduced power consumption are beneficial.

Low-Power Compact Alternative (6-Pin Package)

MAX9180EXT+T provides 400Mbps performance in a 6-TSSOP/SC-88/SOT-363 package, the smallest form factor among substitutes. Supply current is minimal at 10mA. This part is ROHS3 compliant and active. The trade-off is reduced input flexibility (LVDS input only, no CML or LVPECL support) and slightly increased delay time (2.0ns versus 1.4ns). This option is suitable for space-constrained applications where input signal types are limited to LVDS.

Higher-Performance Larger-Package Alternatives (28-TSSOP)

MAX9150EUI+, MAX9153EUI+, and MAX9153EUI+T all use 28-TSSOP packaging. MAX9150EUI+ matches the 400Mbps data rate of the original part. MAX9153EUI+ and MAX9153EUI+T both provide 800Mbps capability. All three are ROHS3 compliant and active. These parts require PCB redesign due to package size increase but offer higher data rate options and are suitable for applications where board space permits larger packages.

Frequently Asked Questions (FAQ)

Q: Can DS92001TMA/NOPB be used as a direct drop-in replacement for DS92001TMA?

A: Yes. DS92001TMA/NOPB is electrically and functionally identical to DS92001TMA. Both share the same 8-SOIC package, 400Mbps data rate, 1-channel configuration, and 3V to 3.6V supply range. The primary differences are product status (active versus obsolete) and RoHS compliance (ROHS3 versus non-compliant). No PCB modifications are required.

Q: What are the key differences between 8-pin and 28-pin substitute options?

A: 8-pin packages (8-SOIC, 8-VFSOP, 6-TSSOP) maintain the compact form factor of the original DS92001TMA and require no PCB layout changes. 28-pin packages (28-TSSOP) are significantly larger and require PCB redesign. The 28-pin options provide higher data rate capability (up to 800Mbps) but consume more supply current. Selection depends on available board space and performance requirements.

Q: Are all substitute parts compatible with CML input signals?

A: No. The original DS92001TMA accepts CML, LVDS, and LVPECL inputs. Most substitutes support only LVDS and LVPECL inputs. MAX9180EXT+T supports LVDS input only. If CML input compatibility is required, DS92001TMA/NOPB is the only substitute that maintains this capability.

Q: What is the impact of using FIN1101MX or FIN1101K8X with their higher 1.6Gbps data rate?

A: Both FIN1101MX and FIN1101K8X exceed the 400Mbps requirement of DS92001TMA, providing additional performance margin. They also feature significantly lower supply current (9.3mA versus 50mA) and faster delay time (1.1ns versus 1.4ns). These characteristics make them suitable for designs where power efficiency and signal integrity are priorities. No functional incompatibility exists when operating at 400Mbps or below.

Q: Which substitute offers the lowest power consumption?

A: MAX9180EXT+T provides the lowest supply current at 10mA, followed by FIN1101MX and FIN1101K8X at 9.3mA each. The original DS92001TMA and DS92001TMA/NOPB both require 50mA. If power consumption is a critical design constraint, MAX9180EXT+T is the optimal choice, provided the 6-pin package and LVDS-only input compatibility are acceptable.

Q: Are all substitute parts RoHS compliant?

A: DS92001TMA/NOPB, FIN1101K8X, MAX9180EXT+T, MAX9150EUI+, MAX9153EUI+, and MAX9153EUI+T are all ROHS3 compliant. FIN1101MX does not specify RoHS status. The original DS92001TMA is RoHS non-compliant. For applications requiring RoHS compliance, all listed substitutes except FIN1101MX meet this requirement.

Q: What packaging considerations apply when selecting a substitute?

A: The original DS92001TMA uses 8-SOIC packaging. DS92001TMA/NOPB and FIN1101MX maintain this package, requiring no PCB changes. FIN1101K8X uses 8-VFSOP with a narrower 2.30mm width, which may require minor PCB layout adjustments. MAX9180EXT+T uses 6-TSSOP/SC-88/SOT-363, a significantly smaller package. MAX9150EUI+, MAX9153EUI+, and MAX9153EUI+T use 28-TSSOP, requiring substantial PCB redesign. Package selection must align with available board space and design constraints.

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