LMP8350MA/NOPB - Ultra-Low Distortion ADC Driver | Texas Instruments
MPN: LMP8350MA/NOPB β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.75 | $4.75 |
| 10 | $4.28 | $42.80 |
| 100 | $3.8 | $380.00 |
| 500 | $3.42 | $1,710.00 |
| 1,000 | $3.05 | $3,050.00 |
Drop-in alternatives for LMP8350MA/NOPB β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
THS4531AIDR
β‘ Same Packageπ Reference alternative (not in catalog)
THS4532IDR
β‘ Same Packageπ Reference alternative (not in catalog)
THS4522IDR
β‘ Same Packageπ Reference alternative (not in catalog)
AD8138ARZ
β‘ Same Packageπ Reference alternative (not in catalog)
ADA4940-1ARZ
β‘ Same Packageπ Reference alternative (not in catalog)
LMP8350MA/NOPB Maximum Ratings & Electrical Characteristics
| Type | ADC Driver (fully-differential amplifier) |
| Application | Data Acquisition |
| Number of Channels | 1 |
| Differential Architecture | Fully differential with output common-mode control |
| Power Modes | 3 selectable via mode enable pin (PowerWise) |
| Distortion | Ultra-low distortion [DATA_NEEDED: THD value per mode] |
| Supply Voltage Range | [DATA_NEEDED: supply voltage range] |
| Quiescent Current | [DATA_NEEDED: quiescent current per mode] |
| Bandwidth | [DATA_NEEDED: bandwidth in high power mode] |
| Slew Rate | [DATA_NEEDED: slew rate] |
| Operating Temperature Range | -40C to +85C |
| Package | 8-SOIC (0.154 in, 3.90 mm width) |
| Mounting Type | Surface Mount |
| Packaging | Tube |
| RoHS Status | Compliant |
| Lead Free Status | Lead Free (/NOPB) |
LMP8350MA/NOPB Pin Configuration
| Pin 1 | OUT- β Inverted differential output |
| Pin 2 | FB- β Feedback for inverted output |
| Pin 3 | IN+ β Non-inverting input |
| Pin 4 | V- β Negative supply |
| Pin 5 | VOCM β Output common-mode voltage |
| Pin 6 | MODE β Mode enable pin (selects one of three power modes) |
| Pin 7 | IN- β Inverting input |
| Pin 8 | V+ β Positive supply |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
LMP8350MA/NOPB is suitable for 6 applications: Precision Data Acquisition, Industrial PLC Analog Inputs, Medical Ultrasound Front Ends, Communications Receivers and SDR, Automated Test Equipment, Portable Battery-Powered Instrumentation.
Precision Data Acquisition
The LMP8350MA/NOPB is purpose-built for data acquisition front ends, converting single-ended sensor signals into balanced differential drives for precision ADCs. Its ultra-low distortion preserves signal fidelity so converter ENOB is not limited by the driver, while the high power mode maximizes AC performance during critical measurements. Placed directly before the ADC input with the VOCM pin set to mid-scale, it removes even-order harmonics and rejects common-mode noise. In lower-duty acquisition systems the mode enable pin drops the driver into a reduced power mode between conversions.
Recommended
Industrial PLC Analog Inputs
In industrial process control and PLC analog input modules, the LMP8350MA/NOPB conditions sensor and 4-20 mA-derived signals into clean differential signals for conversion. Its fully-differential architecture suppresses ground-loop and common-mode noise common in factory environments, and the selectable power modes let module designers trade sample-rate performance for power budget. The SOIC-8 package with -40C to +85C rating suits standard industrial temperature requirements, and the RoHS-compliant lead-free finish meets global module compliance mandates.
Recommended
Medical Ultrasound Front Ends
Medical imaging and ultrasound receivers demand extremely low harmonic distortion because weak echo signals must be amplified and converted without adding artifacts. The LMP8350MA/NOPB drives precision ADCs in the analog front end with ultra-low distortion, maintaining image quality, while common-mode rejection reduces interference from nearby electronics. In portable ultrasound units, the mode enable pin permits a low-power setting during idle scan phases, extending battery life without redesigning the board - the same footprint serves handheld and cart-based systems.
Recommended
Communications Receivers and SDR
Software-defined radios and communications receivers require drivers whose distortion does not compromise spurious-free dynamic range before the converter. The LMP8350MA/NOPB, in high power mode, delivers the highest AC performance of its three modes for wideband receive chains, driving differential ADC inputs with balanced signals that reject LO feedthrough and common-mode interference. The mode enable pin allows firmware-controlled power scaling between receive and standby states, useful in battery- or thermally-constrained radio platforms.
Recommended
Automated Test Equipment
In automated test equipment (ATE), measurement accuracy depends on the entire signal chain, and the driver stage is often the distortion bottleneck. The LMP8350MA/NOPB provides ultra-low distortion and balanced differential drive to precision converters in stimulus-response test channels, ensuring measured harmonics reflect the device under test rather than the driver. Its three power modes let test-head designers optimize per-channel power versus AC performance, and the SOIC-8 footprint fits dense multi-channel ATE boards.
Recommended
Portable Battery-Powered Instrumentation
Portable instrumentation balances measurement precision against battery life, and the LMP8350MA/NOPB addresses both through its PowerWise mode enable pin. Engineers select high power mode during active measurement bursts to obtain maximum AC performance, then drop to a low power mode in standby, saving energy without board changes. Its fully-differential drive maintains precision ADC accuracy for field measurement devices such as handheld data loggers and environmental monitors, all within the compact SOIC-8 package and -40C to +85C range.
Recommended
Recommended Products Summary
Engineering reference data for LMP8350MA/NOPB β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | THS4531AIDR | THS4532IDR | AD8138ARZ | ADA4940-1ARZ |
|---|---|---|---|---|---|
| Package | 8-SOIC (3.90 mm) | SOIC-8 | SOIC-8 | SOIC-8 | SOIC-8 |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Analog Devices | Analog Devices |
| Architecture | Fully differential ADC driver | Fully differential | Dual fully differential | Fully differential | Fully differential |
| Selectable Power Modes | Yes (3 modes via MODE pin) | No (fixed low power) | No | No | No |
| Distortion Class | Ultra-low distortion | Low distortion [DATA_NEEDED: THD value] | [DATA_NEEDED] | Low distortion [DATA_NEEDED: THD value] | Low distortion [DATA_NEEDED: THD value] |
| Pin-to-Pin Compatibility | Reference | Not pin-compatible (different pinout) | Not pin-compatible | Not pin-compatible | Not pin-compatible |
| Operating Temperature | -40C to +85C | -40C to +125C | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
| Price (qty 1, as of 2026-08-29) | $4.75 | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
Key Differentiators
- Selectable power modes (three modes via MODE pin) (vs THS4531AIDR)
- Ultra-low distortion class for precision ADC driving (vs AD8138ARZ)
- Single-channel simplicity with dedicated feedback pins (vs THS4532IDR)
Design Notes
Realize the LMP8350 ultra-low-distortion specification with a symmetrical differential layout: keep the two output traces matched in length and impedance, keep feedback paths short and equal, and place gain-setting resistors close to the inputs. Use a solid ground plane under the device and avoid routing fast digital signals near the differential pair, since asymmetric coupling degrades even-order harmonic suppression.
Decouple V+ and V- with 0.1 uF ceramic capacitors placed within 2 mm of each supply pin, plus a bulk 2.2 uF to 10 uF capacitor per rail. Supply noise modulates the output common-mode and appears as distortion; verify the MODE pin setting against the datasheet truth table because each mode draws different current and delivers different AC performance.
The MODE enable pin is unique to the LMP8350 - when substituting THS45xx or ADI parts, that pin does not exist on replacements, so do not copy the schematic blindly. Also confirm VOCM drive capability: if driven by the ADC VCM output through a resistor divider, ensure divider impedance matches datasheet recommendations to keep output common-mode error within limits at your selected power mode.
Compliance Information
RoHS Compliant and Lead Free per DigiKey/digchip listings; /NOPB suffix denotes TI standard lead-free finish.
