THS4140IDG4 Equivalent & Substitute Parts

Part Overview

The THS4140IDG4 is a differential amplifier integrated circuit manufactured by Texas Instruments, designed for high-speed signal processing applications. This device features a single differential amplifier circuit in an 8-SOIC surface mount package with a gain bandwidth product of 205 MHz and a slew rate of 450V/µs.

The THS4140IDG4 is currently discontinued at DiGi Electronics. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure project timelines, and secure component availability for production and repair applications.

Key Parameters

Parameter	Value
Amplifier Type	Differential
Number of Circuits	1
Output Type	Differential
Slew Rate	450V/µs
Gain Bandwidth Product	205 MHz
-3dB Bandwidth	160 MHz
Current - Input Bias	5.1 µA
Voltage - Input Offset	1 mV
Current - Supply	13.2 mA
Voltage - Supply Span (Min)	4 V
Voltage - Supply Span (Max)	33 V
Operating Temperature	-40°C ~ 85°C
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the THS4140IDG4 is determined by strict equivalence across the following critical parameters:

Functional Parameters:

Amplifier Type: Differential
Number of Circuits: 1
Output Type: Differential

Performance Parameters:

Slew Rate: 450V/µs
Gain Bandwidth Product: 205 MHz
-3dB Bandwidth: 160 MHz
Current - Input Bias: 5.1 µA
Voltage - Input Offset: 1 mV
Current - Supply: 13.2 mA
Voltage - Supply Span: 4 V to 33 V
Operating Temperature Range: -40°C ~ 85°C

Physical & Compliance Parameters:

Package / Case: 8-SOIC (0.154", 3.90mm Width)
Mounting Type: Surface Mount
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)

Substitute parts must match all parameters listed above to ensure direct functional and mechanical compatibility without circuit redesign or board layout modification.

Parameter Comparison

Parameter	THS4140IDG4 (Main Part)	THS4140ID (Substitute)
Manufacturer	Texas Instruments	Texas Instruments
Category	Linear, Amplifiers	Linear, Amplifiers
Description	IC OPAMP DIFF 1 CIRCUIT 8SOIC	IC OPAMP DIFF 1 CIRCUIT 8SOIC
Amplifier Type	Differential	Differential
Number of Circuits	1	1
Output Type	Differential	Differential
Slew Rate	450V/µs	450V/µs
Gain Bandwidth Product	205 MHz	205 MHz
-3dB Bandwidth	160 MHz	160 MHz
Current - Input Bias	5.1 µA	5.1 µA
Voltage - Input Offset	1 mV	1 mV
Current - Supply	13.2 mA	13.2 mA
Voltage - Supply Span (Min)	4 V	4 V
Voltage - Supply Span (Max)	33 V	33 V
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C
Package / Case	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)
Product Status	Discontinued at DiGi Electronics	Active
Packaging	Not specified	Tube

Engineering Selection Recommendations

The THS4140ID is the manufacturer-recommended substitute for the discontinued THS4140IDG4. Both devices are manufactured by Texas Instruments and share identical electrical and mechanical specifications across all critical parameters.

Availability Advantage: The THS4140ID maintains active product status with 878 pieces in stock, compared to the THS4140IDG4 which is discontinued. This ensures reliable supply chain access for new designs and production requirements.

Compliance Equivalence: Both parts maintain ROHS3 compliance, REACH unaffected status, and identical moisture sensitivity levels, satisfying regulatory and environmental requirements for industrial and commercial applications.

Physical Compatibility: The 8-SOIC surface mount package dimensions and pinout are identical, enabling direct board-level substitution without PCB redesign or layout modification.

Performance Parity: All electrical characteristics including slew rate, gain bandwidth product, input bias current, and supply voltage specifications are identical, ensuring equivalent circuit performance in differential amplifier applications.

Frequently Asked Questions (FAQ)

Q: Can the THS4140ID be used as a direct replacement for the THS4140IDG4 on existing PCBs?

A: Yes. The THS4140ID is a direct substitute. Both devices share identical pinout, package dimensions (8-SOIC), and electrical specifications. No PCB modification or circuit redesign is required.

Q: What is the difference between THS4140IDG4 and THS4140ID?

A: The primary difference is product status and packaging. The THS4140IDG4 is discontinued at DiGi Electronics, while the THS4140ID is active. The THS4140ID is supplied in tube packaging. All electrical and mechanical specifications are identical.

Q: Are there any performance differences between these parts?

A: No. Both parts have identical slew rate (450V/µs), gain bandwidth product (205 MHz), -3dB bandwidth (160 MHz), input bias current (5.1 µA), input offset voltage (1 mV), and supply current (13.2 mA). Operating temperature range and supply voltage specifications are also identical.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the THS4140IDG4 and THS4140ID are ROHS3 compliant, REACH unaffected, and have identical moisture sensitivity levels (MSL 1 - Unlimited).

Q: What is the package type for each part?

A: Both parts use the 8-SOIC surface mount package with 0.154" (3.90mm) width. The THS4140IDG4 packaging type is not specified in the data, while the THS4140ID is supplied in tube packaging.

Q: Can I use the THS4140ID in new designs?

A: Yes. The THS4140ID is the active, manufacturer-recommended substitute. It is suitable for new designs requiring a differential amplifier with 205 MHz gain bandwidth product and 450V/µs slew rate in an 8-SOIC package.

Q: What is the current availability of the THS4140ID?

A: The THS4140ID has 878 pieces in stock as new original inventory, ensuring availability for production and development requirements.

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