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Analog Devices Inc. LT1995IMS#PBF
- Part No.:
- LT1995IMS#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LT1995IMS#PBF.pdf
- Description:
- IC OPAMP PGA 1 CIRCUIT 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:150
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Product details
Overview
LT1995IMS#PBF from Analog Devices (formerly Linear Technology) is a high-speed, gain-selectable difference/inverting/noninverting amplifier IC with internal precision resistors, ±15V supply capability, 32MHz bandwidth at G=1, 1000V/µs slew rate, and <0.2% gain error - used in video difference amplification, current sensing, and ATE signal conditioning.
For engineers reviewing the LT1995IMS#PBF datasheet, LT1995IMS#PBF pinout, LT1995IMS#PBF application, or LT1995IMS#PBF equivalent, this page delivers verified package mapping (10-lead MSOP), confirmed pin functions (M1–M4, P1–P4, REF, OUT), DC/AC performance limits across ±2.5V to ±15V supplies, and real-world configuration trade-offs for difference vs. inverting vs. noninverting modes.
Technical Context
The LT1995IMS#PBF integrates a single high-slew-rate op amp with eight on-chip ratio-matched thin-film resistors (1k–4k) enabling pin-strapped gain configurations without external components. Its topology supports difference, inverting, and noninverting modes via selective connection of M1/M2/M4 (inverting inputs) and P1/P2/P4 (noninverting inputs).
Gain accuracy relies on resistor matching (0.2% max at 25°C, 0.3% over –40°C to 85°C) and low op amp input offset (≤2.5mV). CMRR reaches 79dB at G=1, VCM=±15V, and PSRR exceeds 86dB, making it suitable for high-common-mode industrial sensing where rail-to-rail input range (±15.5V at ±15V supply) and output swing (±14V) are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Bandwidth | 32MHz at G=1 (±15V): enables full-spectrum video and fast transient signal conditioning without phase lag. |
| Slew Rate | 1000V/µs (±15V): supports clean 10V-step response in ≤100ns (0.1% settling), critical for pulse amplification. |
| Gain Error | <0.2% max (G=1–4, RL=1kΩ): eliminates need for external trimming in precision instrumentation. |
| CMRR | 79dB typical (G=1, VCM=±15V): rejects noise in high-side current sensing and motor control feedback loops. |
| Supply Range | ±2.5V to ±15V: operates from low-voltage portable systems to industrial ±15V rails without level-shifting. |
| Input Offset | ≤5mV max (G=1, ±15V): ensures sub-10mV output error in 12-bit ADC front-ends. |
| Output Drive | ±13.5V into 1kΩ (±15V): drives coaxial cables and 150Ω video loads directly, reducing BOM count. |
Pinout & Package
LT1995IMS#PBF is housed in a 10-lead MSOP package (3mm × 3mm footprint, 0.5mm pitch), thermally rated to TJMAX = 150°C with θJA = 160°C/W. Exposed pad is not internally connected; PCB connection is optional.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1 (Pin 1) | Noninverting Gain-of-1 Input | Connects internal 4kΩ resistor to op amp noninverting input; used for unity-gain difference or buffer mode. |
| P2 (Pin 2) | Noninverting Gain-of-2 Input | Connects internal 2kΩ resistor; enables G=2 in noninverting or difference configurations. |
| P4 (Pin 3) | Noninverting Gain-of-4 Input | Connects internal 1kΩ resistor; sets higher gains when combined with M-pin feedback paths. |
| VS– (Pin 4) | Negative Supply Rail | Reference for all internal circuitry; must be stable and low-impedance to maintain PSRR & CMRR. |
| REF (Pin 5) | Output Reference Level | Sets DC output bias (e.g., ground for bipolar signals); connects internal 4kΩ resistor to noninverting input. |
| OUT (Pin 6) | Amplified Output | Delivers rail-to-rail capable output (±14V at ±15V); drives 150Ω loads for video applications. |
| VS+ (Pin 7) | Positive Supply Rail | Primary power input; decoupling near pin is mandatory for stability at >10MHz. |
| M4 (Pin 8) | Inverting Gain-of-4 Input | Connects internal 1kΩ resistor to op amp inverting input; defines gain in inverting/difference modes. |
| M2 (Pin 9) | Inverting Gain-of-2 Input | Connects internal 2kΩ resistor; used with P2 for precise G=2 difference amplification. |
| M1 (Pin 10) | Inverting Gain-of-1 Input | Connects internal 4kΩ resistor; forms matched pair with P1 for highest CMRR in difference mode. |
Key Features
| Feature | Design Value |
|---|---|
| Pin-strappable gain | 1–8 (noninverting), –1 to –7 (inverting), 1–7 (difference) - no external resistors needed for standard gains. |
| On-chip resistor matching | 0.2% max at 25°C ensures CMRR >65dB and gain accuracy without calibration. |
| High-speed settling | 100ns to 0.1% for 10V step (G=1, ±15V) - meets ATE timing requirements for automated test cycles. |
| Differential video performance | 0.06% differential gain / 0.15° differential phase (G=2, RL=150Ω) - preserves color fidelity in broadcast equipment. |
| Rail-compatible operation | Input range extends to ±15.5V (±15V supply); output swings to ±14V - maximizes dynamic range in ±15V systems. |
Applications
| High-Side Current Sensing | Video Difference Amplification |
|---|---|
Use Scenario: Monitoring motor phase current in industrial inverters using shunt resistor between high-side switch and bus voltage. IC Role / Device Role / Timing Role: Difference amplifier with G=20 (via external scaling + internal gain), rejecting common-mode bus voltage up to 400V. Use Value: Achieves 79dB CMRR at ±15V supply, enabling accurate sub-mV shunt voltage measurement despite 300V common-mode transients. | Use Scenario: Reconstructing RGB video signals from differential pairs in broadcast camera interfaces. IC Role / Device Role / Timing Role: High-fidelity difference amplifier (G=2, RL=150Ω) restoring single-ended video with minimal distortion. Use Value: 0.06% differential gain and 0.15° phase error preserve color accuracy; 32MHz bandwidth supports HD/SDI pixel rates. |
| Automatic Test Equipment (ATE) | Programmable Gain Instrumentation |
Use Scenario: Stimulus generation and response capture in semiconductor wafer probers requiring fast, repeatable gain switching. IC Role / Device Role / Timing Role: Inverting amplifier (G=–4) with 100ns settling time, driven by FPGA-controlled GPIO to select M2/P2 connections. Use Value: Eliminates relay-based gain switching; 1000V/µs slew rate ensures <1% overshoot on 5V steps for high-throughput parametric testing. | Use Scenario: Configurable front-end for data acquisition systems needing selectable gain per channel without rework. IC Role / Device Role / Timing Role: Noninverting buffer (G=1–8) with Hi-Z input, configured via solder jumpers or zero-ohm resistors on P/M pins. Use Value: Internal 0.2% resistor matching guarantees <0.2% gain error across temperature - removes need for per-channel calibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed difference amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD8476ARMZ | Lower bandwidth (10MHz), lower slew rate (35V/µs), but integrated laser-trimmed resistors yield 0.02% gain error and 86dB CMRR. | Better DC precision and lower noise (2.6nV/√Hz), but insufficient for >20MHz video or fast ATE step response. | Select AD8476ARMZ for ultra-precision DC-coupled instrumentation; avoid for video or high-slew applications. |
| THS4561IRGET | Higher bandwidth (350MHz), higher slew rate (1800V/µs), but requires external gain-setting resistors and has no internal reference pin. | Superior RF/IF performance and drive capability (100mA), but lacks REF pin and pin-strappable gain - increases layout complexity. | Select THS4561IRGET for GHz-range signal chains; use LT1995IMS#PBF when simplicity, integrated gain, and REF biasing are required. |
Compared with AD8476ARMZ and THS4561IRGET, the LT1995IMS#PBF uniquely balances high-speed AC performance (32MHz/1000V/µs) with factory-matched internal resistors and a dedicated REF pin - enabling rapid, low-risk implementation of difference, inverting, and noninverting topologies without external components or trimming.
Availability
LT1995IMS#PBF is available at Aetrix Electronics and suitable for high-speed analog signal conditioning, industrial current sensing, broadcast video reconstruction, and automated test equipment requiring stable component supply across extended temperature ranges.
Supply support for LT1995IMS#PBF includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices, Inc. (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing technologies, serving industrial, automotive, communications, and healthcare markets.
The LT1995IMS#PBF belongs to ADI's legacy Linear Technology precision amplifier portfolio, designed specifically for applications demanding both high DC accuracy and wideband AC performance - especially where simplified gain configuration and robust common-mode rejection are essential.
FAQ
What is the maximum operating temperature range for the LT1995IMS#PBF?
The LT1995IMS#PBF is specified for operation from –40°C to +85°C, with guaranteed performance across this full industrial temperature range. The MSOP package has a maximum junction temperature of 150°C and thermal resistance θJA = 160°C/W under standard PCB conditions. Derating is required above 85°C ambient if power dissipation exceeds safe limits.
Can the LT1995IMS#PBF be used in single-supply configurations?
Yes, the LT1995IMS#PBF supports single-supply operation via AC-coupling and proper REF pin biasing. For example, with VS+ = 5V and VS– = 0V, setting REF = 2.5V establishes mid-rail output quiescent point. Input common-mode range is limited to ±1.5V (at ±2.5V total supply), so signal swing must remain within that window to avoid clipping.
How does gain selection work on the LT1995IMS#PBF without external resistors?
The LT1995IMS#PBF uses eight internal thin-film resistors (1kΩ, 2kΩ, 4kΩ) connected to pins M1/M2/M4 (inverting) and P1/P2/P4 (noninverting). By connecting specific M and P pins to signal or ground, users configure fixed gains - e.g., tying M1 and P1 to inputs yields G=1 difference mode; tying M2 and P1 gives G=2. No external resistors are needed for standard gains.
What is the output drive capability of the LT1995IMS#PBF into a 150Ω load?
At ±15V supply, the LT1995IMS#PBF delivers ±2.5V into a 150Ω load - sufficient for driving 75Ω/150Ω video lines and cable lengths up to several meters. This capability is explicitly validated in the datasheet (TA01a figure) and enables direct interface with video DACs, ADCs, and coaxial transmission lines without external buffers.
Does the LT1995IMS#PBF require external compensation capacitors?
No, the LT1995IMS#PBF is unity-gain stable and does not require external compensation. However, capacitive loads >100pF may cause overshoot; the datasheet shows stable operation up to 100pF with <30% overshoot (G=1, ±15V). For heavier loads, a small series resistor (e.g., 10Ω) at the output is recommended to isolate capacitance.
LT1995IMS#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- Programmable Gain
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 1000V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 32 MHz
- Current - Input Bias:
- -
- Voltage - Input Offset:
- 500 µV
- Current - Supply:
- 7.1mA
- Current - Output / Channel:
- 120 mA
- Voltage - Supply Span (Min):
- 5 V
- Voltage - Supply Span (Max):
- 30 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-MSOP
LT1995IMS#PBF FAQ
1.How can I place an order for LT1995IMS#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1995IMS#PBF on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for LT1995IMS#PBF reliable?
The price and inventory of LT1995IMS#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1995IMS#PBF is usually 5 days.
3.What payment methods are accepted for LT1995IMS#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1995IMS#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1995IMS#PBF?
LT1995IMS#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1995IMS#PBF order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for LT1995IMS#PBF?
For technical support, including LT1995IMS#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1995IMS#PBF requirements.
6.How does Aetrix verify that LT1995IMS#PBF is sourced from the original manufacturer or authorized distributors?
All LT1995IMS#PBF products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LT1995IMS#PBF meets industry standards.
7.What is the process for return or replacement of LT1995IMS#PBF?
All LT1995IMS#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LT1995IMS#PBF, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The LT1995IMS#PBF part is unused and in its original packaging.
Return procedure for LT1995IMS#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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