OPA2835IDR Equivalent & Substitute Parts

Part Overview

The OPA2835IDR is a voltage feedback amplifier manufactured by Texas Instruments, featuring two circuits in an 8-SOIC surface mount package. This device is classified as a differential, rail-to-rail output amplifier with active product status and full RoHS3 compliance. The OPA2835IDR is designed for applications requiring moderate bandwidth and slew rate performance with dual-channel integration.

Substitute parts are identified when component availability is limited, supply chain disruptions occur, or design flexibility permits alternative electrical and mechanical specifications within acceptable operating parameters.

Key Parameters

Parameter	Value	Unit
Manufacturer Part Number	OPA2835IDR
Manufacturer	Texas Instruments
Amplifier Type	Voltage Feedback
Number of Circuits	2
Output Type	Differential, Rail-to-Rail
Slew Rate	160	V/µs
Gain Bandwidth Product	31	MHz
-3dB Bandwidth	3.1	MHz
Current - Input Bias	200	nA
Voltage - Input Offset	100	µV
Current - Supply (per Channel)	250	µA
Current - Output / Channel	40	mA
Voltage - Supply Span (Min)	2.5	V
Voltage - Supply Span (Max)	5.5	V
Operating Temperature Range	-40 to 125	°C
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	2 (1 Year)
Product Status	Active

Substitute Part Grouping Explanation

Substitute parts for the OPA2835IDR are identified based on the following critical parameters that determine functional compatibility:

Primary Substitution Criteria:

Number of circuits: 2 (dual-channel requirement)
Output type: Rail-to-rail capability
Package type: 8-pin surface mount (8-SOIC or 8-SOP)
Supply voltage range: Minimum 2.5V to maximum 5.5V overlap
Operating temperature: Minimum -40°C overlap
Surface mount technology compatibility
RoHS3 compliance and REACH unaffected status

Secondary Compatibility Factors:

Slew rate and gain bandwidth product (performance envelope)
Input bias current and input offset voltage (signal integrity)
Supply current and output current (power budget)
Amplifier topology (voltage feedback, CMOS, or general purpose)

The substitute parts listed below maintain compatibility within these parameters while offering alternative electrical characteristics suitable for different application requirements.

Parameter Comparison

Parameter	OPA2835IDR	MAX4471ESA+	MAX4471ESA+T	BU7266F-E2	BU7266SF-E2	BU7486F-E2	LMR932F-GE2
Manufacturer	Texas Instruments	Analog Devices Inc./Maxim	Analog Devices Inc./Maxim	Rohm Semiconductor	Rohm Semiconductor	Rohm Semiconductor	Rohm Semiconductor
Amplifier Type	Voltage Feedback	General Purpose	General Purpose	CMOS	CMOS	CMOS	General Purpose
Number of Circuits	2	2	2	2	2	2	2
Output Type	Differential, Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail
Slew Rate (V/µs)	160	0.002	0.002	0.0024	0.0024	10	0.35
Gain Bandwidth Product (MHz)	31	0.009	0.009	0.004	0.004	10	1.4
Current - Input Bias (nA)	200	0.2	0.2	0.001	0.001	0.001	5
Voltage - Input Offset (µV)	100	500	500	1000	1000	1000	1000
Current - Supply (µA)	250 (x2)	0.75	0.75	0.7	0.7	6000	140
Current - Output / Channel (mA)	40	36	36	4	4	12	90
Voltage - Supply Span Min (V)	2.5	1.8	1.8	1.8	1.8	3	1.8
Voltage - Supply Span Max (V)	5.5	5.5	5.5	5.5	5.5	5.5	5
Operating Temperature (°C)	-40 to 125	-40 to 85	-40 to 85	-40 to 85	-40 to 105	-40 to 105	-40 to 85
Package / Case	8-SOIC (0.154", 3.90mm)	8-SOIC (0.154", 3.90mm)	8-SOIC (0.154", 3.90mm)	8-SOIC (0.173", 4.40mm)	8-SOIC (0.173", 4.40mm)	8-SOIC (0.173", 4.40mm)	8-SOIC (0.173", 4.40mm)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	2 (1 Year)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

MAX4471ESA+ and MAX4471ESA+T (Analog Devices Inc./Maxim Integrated)

These general purpose amplifiers maintain identical electrical specifications and differ only in packaging format (Tube versus Tape & Reel). Both devices feature 8-SOIC packages matching the OPA2835IDR footprint precisely. The MAX4471 series operates within the 1.8V to 5.5V supply range with -40°C to 85°C temperature coverage. These parts are suitable for applications where lower slew rate and bandwidth are acceptable trade-offs for reduced supply current consumption. RoHS3 compliance and MSL 1 rating provide superior moisture handling compared to the OPA2835IDR.

BU7266F-E2 and BU7266SF-E2 (Rohm Semiconductor)

Both CMOS amplifiers from Rohm provide identical electrical performance with extended temperature range on the SF variant (-40°C to 105°C versus -40°C to 85°C). These devices feature ultra-low input bias current (1 pA) and minimal supply current (700 nA), making them suitable for battery-powered or low-power applications. Package dimensions differ slightly (0.173" versus 0.154" width), requiring PCB layout verification. MSL 1 rating provides unlimited shelf life.

BU7486F-E2 (Rohm Semiconductor)

This CMOS amplifier offers intermediate performance between low-speed and high-speed options, with 10V/µs slew rate and 10 MHz gain bandwidth product. Supply voltage minimum is 3V, restricting use in 2.5V systems. Operating temperature extends to 105°C. Output current capability (12 mA) is lower than the OPA2835IDR but suitable for moderate load applications.

LMR932F-GE2 (Rohm Semiconductor)

This general purpose amplifier provides moderate performance with 0.35V/µs slew rate and 1.4 MHz bandwidth. Supply voltage range is 1.8V to 5V, with maximum supply voltage limited to 5V. Output current capability reaches 90 mA, exceeding the OPA2835IDR. Operating temperature range is -40°C to 85°C. This device is suitable for applications requiring higher output current with moderate bandwidth requirements.

All substitute parts maintain RoHS3 compliance, REACH unaffected status, and active product status. Selection should be based on specific application requirements for slew rate, bandwidth, supply current, output current, and operating temperature range.

Frequently Asked Questions (FAQ)

Q: Can MAX4471ESA+ directly replace OPA2835IDR without PCB modifications?

A: Yes. Both devices use identical 8-SOIC packages with 0.154" width and 3.90mm body dimensions. Pin configurations are compatible for dual-channel amplifier applications. No PCB layout changes are required for mechanical compatibility.

Q: What are the key electrical differences between OPA2835IDR and MAX4471ESA+?

A: The OPA2835IDR features 160V/µs slew rate and 31 MHz gain bandwidth product, while MAX4471ESA+ operates at 0.002V/µs slew rate and 9 kHz bandwidth. The OPA2835IDR consumes 250µA per channel versus 0.75µA for MAX4471ESA+. Selection depends on application bandwidth and power budget requirements.

Q: Are Rohm BU7266 variants interchangeable with each other?

A: BU7266F-E2 and BU7266SF-E2 are electrically identical with identical electrical specifications. The SF variant extends operating temperature to 105°C. Both use 8-SOP packages with 0.173" width, differing from the OPA2835IDR package width. Verify PCB layout compatibility before substitution.

Q: What is the significance of MSL rating differences?

A: OPA2835IDR carries MSL 2 (1 Year shelf life), while all substitute parts carry MSL 1 (Unlimited shelf life). MSL 1 devices tolerate longer storage periods and higher humidity exposure without moisture absorption concerns. This provides supply chain flexibility for substitute parts.

Q: Can BU7486F-E2 operate in 2.5V supply systems?

A: No. BU7486F-E2 requires minimum 3V supply voltage, making it incompatible with 2.5V systems. The OPA2835IDR, MAX4471ESA+, MAX4471ESA+T, BU7266F-E2, BU7266SF-E2, and LMR932F-GE2 all support 2.5V minimum supply voltage.

Q: Which substitute provides the highest output current capability?

A: LMR932F-GE2 provides 90 mA per channel output current, exceeding the OPA2835IDR (40 mA) and all other substitutes. This device is suitable for applications requiring higher load driving capability.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts (MAX4471ESA+, MAX4471ESA+T, BU7266F-E2, BU7266SF-E2, BU7486F-E2, and LMR932F-GE2) are RoHS3 compliant and REACH unaffected, matching the OPA2835IDR compliance status.

Q: What is the maximum operating temperature for each substitute?

A: MAX4471ESA+ and MAX4471ESA+T: 85°C; BU7266F-E2: 85°C; BU7266SF-E2: 105°C; BU7486F-E2: 105°C; LMR932F-GE2: 85°C. The OPA2835IDR extends to 125°C, providing the widest temperature range.

Q: Do package dimension differences affect PCB compatibility?

A: Yes. OPA2835IDR and MAX4471 series use 8-SOIC packages with 0.154" width. Rohm devices (BU7266, BU7486, LMR932) use 8-SOP packages with 0.173" width. Verify PCB footprint compatibility before substitution, as package width differences may affect board layout.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message