LF398H/NOPB Texas Instruments amplifiers (TO-99) In Stock
LF398H/NOPB is a Texas Instruments precision monolithic sample-and-hold amplifier in TO-99 package, featuring ±5V to ±18V supply range, 6µs acquisition time, and 0.5mV hold step. From $13.21, in-stock, MOQ 18, ships worldwide.
- Manufacturer
- Texas Instruments
- Package
- TO-99
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- LF398H/NOPB Datasheet PDF
- Category
- amplifiers
- Price
- From $13.2125(MOQ 18)
- Temp Range
- -25.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Applications
The LF398H/NOPB is ideal for precision data acquisition systems, ADC input buffering, and analog signal processing where accurate sample-and-hold operation is critical. It is widely used in industrial instrumentation, medical equipment, and test/measurement systems requiring low droop and fast settling.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Acquisition Time-Max | 25 µs |
| Acquisition Time-Nom | 20 µs |
| Amplifier Type | SAMPLE AND HOLD CIRCUIT |
| Analog Input Voltage-Max | 11.5V |
| Analog Input Voltage-Min | -11.5 V |
| JESD-30 Code | O-MBCY-W8 |
| Neg Supply Voltage Limit-Max | -18 V |
| Neg Supply Voltage-Nom (Vsup) | -15 V |
| Number of Functions | 1 |
| Package Body Material | METAL |
| Package Equivalence Code | CAN8,.2 |
| Package Shape | ROUND |
| Package Style | CYLINDRICAL |
| Qualification Status | Not Qualified |
| Sample and Hold / Track and Hold | SAMPLE |
| Subcategory | Sample and Hold Circuit |
| Supply Current-Max | 6.5mA |
| Supply Voltage Limit-Max | 18V |
| Supply Voltage-Nom (Vsup) | 15V |
| Surface Mount | NO |
| Technology | BIPOLAR |
| Temperature Grade | COMMERCIAL |
| Terminal Form | WIRE |
| Terminal Position | BOTTOM |
| Package | TO-99 |
Compliance & Regulatory
| RoHS Status | Compliant |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for LF398H/NOPB:
Frequently Asked Questions
What is the LF398H/NOPB and what does it do?
The LF398H/NOPB is a precision monolithic sample-and-hold amplifier from Texas Instruments. It samples an analog input signal and holds that voltage level with high accuracy, making it essential for ADC front-ends, data acquisition, and signal processing systems that require stable analog values during conversion.
What are the key electrical specifications of the LF398H/NOPB?
The LF398H/NOPB operates on a supply voltage of ±5V to ±18V, achieves 6µs acquisition time to 0.01% for a 10V step, exhibits a hold step of 0.5mV typical at 1kHz, and has a droop rate of only 5mV/s with a 0.01µF external hold capacitor. Input offset voltage is 2mV typical.
What package does the LF398H/NOPB use and how many pins does it have?
The LF398H/NOPB is housed in a TO-99 hermetic metal can package with 8 pins. The TO-99 package provides excellent protection in harsh industrial and military environments, ensuring reliable performance across the -25°C to +85°C operating temperature range.
What are typical applications for the LF398H/NOPB?
The LF398H/NOPB is used in precision data acquisition systems, ADC input buffers, medical instrumentation, industrial control systems, and test/measurement equipment. Its low droop rate and fast acquisition time make it suitable for multiplexed ADC inputs and any system requiring accurate analog signal capture.
What are suitable alternatives or replacements for the LF398H/NOPB?
Compatible alternatives include the LF398N (DIP-8 package), LF198H (military-grade, same TO-99), and the AD781 from Analog Devices which offers faster acquisition with comparable hold performance.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 18+ | $16.5100 | $297.18 |
| 100+ | $15.4200 | $1542.00 |
| 250+ | $14.7100 | $3677.50 |
| 500+ | $13.8000 | $6900.00 |
| 10000+ | $13.2125 | $132125.00 |
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