THS3202D Current Feedback Amplifier Equivalent & Substitute Parts

Part Overview

The THS3202D is a dual-channel current feedback amplifier manufactured by Texas Instruments in 8-SOIC surface mount packaging. This device features a 2 GHz bandwidth and 9000V/µs slew rate, designed for high-speed signal conditioning applications. The THS3202D carries a "Not For New Designs" product status, indicating that Texas Instruments no longer recommends this part for new circuit development. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain performance specifications, and access components with active manufacturing support.

Key Parameters

Parameter	Value	Unit
Amplifier Type	Current Feedback	—
Number of Circuits	2	Channels
Slew Rate	9000	V/µs
-3dB Bandwidth	2	GHz
Current - Input Bias	13	µA
Voltage - Input Offset	700	mV
Current - Supply (per Channel)	14	mA
Current - Output / Channel	120	mA
Voltage - Supply Span (Min)	6.6	V
Voltage - Supply Span (Max)	15	V
Operating Temperature Range	-40 to 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

Substitute parts for the THS3202D are selected based on strict electrical and mechanical compatibility criteria. The primary substitution parameters are:

Critical Matching Parameters:

Amplifier Type: Current Feedback (all substitutes must be current feedback amplifiers)
Number of Circuits: 2 (dual-channel configuration)
Package / Case: 8-SOIC surface mount form factor (mechanical compatibility)
Operating Temperature Range: -40°C to 85°C minimum (thermal envelope)
Supply Voltage Range: Overlap with 6.6V to 15V span

Performance Consideration Parameters:

Slew Rate: 9000V/µs (THS3202D baseline)
-3dB Bandwidth: 2 GHz (THS3202D baseline)
Output Current Capability: 120 mA per channel (THS3202D baseline)

Substitutes are grouped into two categories:

Category A - Direct Package Match (8-SOIC): AD8008ARZ-REEL, AD8012ARZ, AD8012ARZ-REEL7, and LT1396CS8#PBF/LT1396CS8#TRPBF maintain identical 8-SOIC packaging, enabling direct PCB footprint compatibility without layout modifications.

Category B - Alternative Package (16-VQFN): OPA2695IRGTT uses 16-VQFN (3x3) packaging, requiring PCB redesign but offering differential output capability and active product status.

All substitute parts maintain ROHS3 compliance and MSL ratings suitable for standard manufacturing processes.

Parameter Comparison

Parameter	THS3202D	OPA2695IRGTT	AD8008ARZ-REEL	AD8012ARZ	AD8012ARZ-REEL7	LT1396CS8#PBF	LT1396CS8#TRPBF
Manufacturer	Texas Instruments	Texas Instruments	Analog Devices Inc.	Analog Devices Inc.	Analog Devices Inc.	Analog Devices Inc.	Analog Devices Inc.
Amplifier Type	Current Feedback	Current Feedback	Current Feedback	Current Feedback	Current Feedback	Current Feedback	Current Feedback
Number of Circuits	2	2	2	2	2	2	2
Slew Rate (V/µs)	9000	2900	1000	2250	2250	800	800
-3dB Bandwidth (GHz / MHz)	2 GHz	1.1 GHz	500 MHz	350 MHz	350 MHz	400 MHz	400 MHz
Current - Input Bias (µA)	13	20	4	3	3	10	10
Voltage - Input Offset (mV)	0.7	0.3	0.5	1.5	1.5	1	1
Current - Supply per Channel (mA)	14	25.8	9	1.7	1.7	4.6	4.6
Current - Output / Channel (mA)	120	120	130	125	125	80	80
Voltage - Supply Span Min (V)	6.6	3.5	5	3	3	4	4
Voltage - Supply Span Max (V)	15	12	12	12	12	12	12
Operating Temperature (°C)	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85	0 to 70	0 to 70
Package / Case	8-SOIC	16-VQFN (3x3)	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC
Product Status	Not For New Designs	Active	Active	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	2 (1 Year)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

For Direct PCB Replacement (No Layout Changes):

Select AD8012ARZ or AD8012ARZ-REEL7 when the application requires minimal design modification. Both parts maintain 8-SOIC packaging identical to THS3202D and carry active product status. AD8012ARZ-REEL7 offers higher inventory availability (2200 pcs) in Cut Tape & Digi-Reel packaging, suitable for automated assembly. The trade-off is reduced bandwidth (350 MHz vs. 2 GHz) and slew rate (2250V/µs vs. 9000V/µs), making this selection appropriate only for applications not requiring the full performance envelope of the original part.

For Bandwidth-Optimized Substitution:

Select OPA2695IRGTT when bandwidth performance approaching the original specification is required. This part delivers 1.1 GHz bandwidth and 2900V/µs slew rate, representing the closest performance match among active alternatives. The 16-VQFN (3x3) package requires PCB redesign but enables differential output capability. OPA2695IRGTT carries active product status and maintains ROHS3 compliance. Higher supply current (25.8 mA per channel) must be accommodated in power distribution design.

For Low-Power Applications:

Select AD8012ARZ or AD8012ARZ-REEL7 when supply current minimization is critical. These parts consume only 1.7 mA per channel (versus 14 mA for THS3202D), reducing thermal load and power supply requirements. This selection is appropriate for battery-powered or thermally constrained applications where bandwidth requirements do not exceed 350 MHz.

For Extended Temperature Range:

AD8008ARZ-REEL, AD8012ARZ, AD8012ARZ-REEL7, and OPA2695IRGTT all support -40°C to 85°C operating range, matching the THS3202D specification. LT1396CS8#PBF and LT1396CS8#TRPBF are limited to 0°C to 70°C and are unsuitable for applications requiring full -40°C to 85°C coverage.

For Production Volume and Supply Chain:

OPA2695IRGTT (1182 pcs), AD8008ARZ-REEL (2102 pcs), and LT1396CS8#TRPBF (3800 pcs) offer the highest inventory levels. All substitute parts carry ROHS3 compliance and REACH unaffected status, meeting standard environmental and regulatory requirements.

Frequently Asked Questions (FAQ)

Q1: Can I use OPA2695IRGTT as a direct replacement for THS3202D without PCB modifications?

No. OPA2695IRGTT uses 16-VQFN (3x3) packaging, while THS3202D uses 8-SOIC. The pinout, footprint, and pad layout are incompatible. PCB redesign is required. For direct footprint compatibility, use AD8012ARZ, AD8012ARZ-REEL7, AD8008ARZ-REEL, or LT1396CS8 variants, which all use 8-SOIC packaging.

Q2: Why does THS3202D have "Not For New Designs" status?

This status indicates that Texas Instruments has discontinued active development and recommends against using this part in new circuit designs. Existing designs may continue using THS3202D if inventory is available, but new projects should select from active alternatives listed in this document.

Q3: What is the performance trade-off when substituting with AD8012ARZ?

AD8012ARZ reduces bandwidth from 2 GHz to 350 MHz and slew rate from 9000V/µs to 2250V/µs. Supply current decreases from 14 mA to 1.7 mA per channel. This substitution is suitable only for applications not requiring the full bandwidth and slew rate of the original part. Verify application frequency response requirements before selection.

Q4: Is OPA2695IRGTT compatible with the same supply voltage range as THS3202D?

Partial compatibility exists. THS3202D operates from 6.6V to 15V. OPA2695IRGTT operates from 3.5V to 12V. The overlap range is 6.6V to 12V. If your design requires operation above 12V, OPA2695IRGTT is not suitable.

Q5: What does MSL (Moisture Sensitivity Level) rating mean for component selection?

MSL 1 (Unlimited) indicates the component can be stored indefinitely without moisture absorption concerns. MSL 2 (1 Year) requires controlled storage and handling within one year of manufacture. THS3202D, AD8008ARZ-REEL, AD8012ARZ, AD8012ARZ-REEL7, and LT1396 variants all carry MSL 1. OPA2695IRGTT carries MSL 2, requiring stricter inventory management.

Q6: Can I substitute LT1396CS8#PBF for applications requiring -40°C operation?

No. LT1396CS8#PBF operates from 0°C to 70°C only. For -40°C to 85°C coverage, select AD8008ARZ-REEL, AD8012ARZ, AD8012ARZ-REEL7, or OPA2695IRGTT.

Q7: What is the difference between AD8012ARZ and AD8012ARZ-REEL7?

Both parts are electrically identical with matching specifications. AD8012ARZ is supplied in Tube packaging; AD8012ARZ-REEL7 is supplied in Cut Tape & Digi-Reel packaging. AD8012ARZ-REEL7 is optimized for automated assembly and offers higher inventory (2200 pcs vs. 1583 pcs).

Q8: Which substitute offers the closest performance match to THS3202D?

OPA2695IRGTT provides the closest performance match with 1.1 GHz bandwidth and 2900V/µs slew rate. However, it requires PCB redesign due to different packaging. For 8-SOIC package compatibility, AD8008ARZ-REEL offers the next-best performance with 500 MHz bandwidth and 1000V/µs slew rate.

Q9: Are all substitute parts ROHS3 compliant?

Yes. All substitute parts listed (OPA2695IRGTT, AD8008ARZ-REEL, AD8012ARZ, AD8012ARZ-REEL7, LT1396CS8#PBF, LT1396CS8#TRPBF) carry ROHS3 compliance certification, meeting environmental and regulatory requirements for standard manufacturing processes.

Q10: What output current capability should I verify when selecting a substitute?

THS3202D provides 120 mA per channel output current. AD8008ARZ-REEL provides 130 mA, AD8012ARZ and AD8012ARZ-REEL7 provide 125 mA, and LT1396 variants provide 80 mA. Verify that your application load impedance and current requirements are compatible with the selected substitute's output current specification.

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