My Inquiry
My Account
Analog Devices Inc. LT1995CDD#PBF
- Part No.:
- LT1995CDD#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 10-WFDFN Exposed Pad
- Datasheet:
-
LT1995CDD#PBF.pdf
- Description:
- IC OPAMP PGA 1 CIRCUIT 10DFN
- Quantity:
- Payment:
- Shipping:
Inventory:229
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LT1995CDD#PBF from Analog Devices (formerly Linear Technology) is a high-speed, gain-selectable differential amplifier IC with integrated precision resistors, configured as a difference amplifier delivering gains of 1–7, CMRR up to 79 dB, 32 MHz bandwidth at G = 1, and 1000 V/µs slew rate - used in precision current sensing and video signal conditioning.
For engineers reviewing the LT1995CDD#PBF datasheet, LT1995CDD#PBF pinout, LT1995CDD#PBF application, or LT1995CDD#PBF equivalent, key selection criteria include gain configuration flexibility (pin-strapped), ±2.5V to ±15V supply operation, DFN-10 package thermal performance, and input offset voltage ≤ 9 mV over temperature.
Technical Context
The LT1995CDD#PBF implements a single-stage high-slew op amp core with eight on-die ratio-matched thin-film resistors (0.2% max matching at 25°C), enabling precise difference, inverting, and noninverting configurations without external components. Its topology supports simultaneous common-mode rejection and wide-bandwidth signal amplification.
Gain is set by strapping pins P1/P2/P4 (noninverting) and M1/M2/M4 (inverting) to VS+ or VS−, defining resistor network ratios. The internal op amp features <2.5 mV input offset and operates across –40°C to 85°C, fully specified at ±2.5V, ±5V, and ±15V supplies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Bandwidth | 32 MHz at G = 1 - enables high-fidelity video and fast transient response in test equipment. |
| Slew Rate | 1000 V/µs - supports large-signal step fidelity for cable driving and pulse amplification. |
| CMRR | 79 dB typical (G = 1, ±15V) - ensures accurate differential measurement in noisy industrial environments. |
| Gain Error | ≤ 0.25% max - eliminates need for external trimming in precision instrumentation. |
| Input Offset Voltage | ≤ 9 mV (DD10, ±15V, –40°C to 85°C) - maintains DC accuracy in current sense and sensor interfaces. |
| Supply Range | ±2.5V to ±15V - accommodates both low-voltage portable systems and high-dynamic-range industrial rails. |
| Package | 10-Lead (3mm × 3mm) DFN - compact footprint with exposed pad for enhanced thermal dissipation (θJA = 160°C/W). |
Pinout & Package
LT1995CDD#PBF uses a 10-lead plastic DFN package (3mm × 3mm) with exposed pad internally connected to VS–. Thermal performance improves significantly when the exposed pad is soldered to a PCB copper plane.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1 (Pin 1) | Noninverting Gain-of-1 Input | Connects internal 4 kΩ resistor to op amp noninverting input; used in G = 1 difference/inverting configurations. |
| P2 (Pin 2) | Noninverting Gain-of-2 Input | Connects internal 2 kΩ resistor; enables G = 2, 3, 4, 6 via pin strapping combinations. |
| P4 (Pin 3) | Noninverting Gain-of-4 Input | Connects internal 1 kΩ resistor; critical for G ≥ 4 and attenuation-based gain setups. |
| VS– (Pin 4) | Negative Supply Rail | Power ground reference; exposed pad tied internally to this node for thermal and noise control. |
| REF (Pin 5) | Reference Voltage Input | Sets output DC level (VOUT = VREF + G·(VIN+ − VIN−)); determines common-mode output bias in single-supply use. |
| OUT (Pin 6) | Amplified Output | Drives ≥30 mA into 150 Ω; swings within 1.5 V of rails - suitable for direct coaxial cable driving. |
| VS+ (Pin 7) | Positive Supply Rail | Accepts up to +15 V; total supply voltage limited to 36 V (VS+ − VS–). |
| M4 (Pin 8) | Inverting Gain-of-4 Input | Connects internal 1 kΩ resistor to op amp inverting input; pairs with P4 for symmetric gain networks. |
| M2 (Pin 9) | Inverting Gain-of-2 Input | Connects internal 2 kΩ resistor; enables balanced impedance matching in difference amplifier mode. |
| M1 (Pin 10) | Inverting Gain-of-1 Input | Connects internal 4 kΩ resistor; completes matched resistor ladder for optimal CMRR and gain accuracy. |
Key Features
| Feature | Design Value |
|---|---|
| Pin-configurable gain | 73 discrete noninverting gains (1–8) and 9 inverting/difference gains (1–7) via resistor network strapping - no external components required. |
| Matched on-chip resistors | 0.2% max matching at 25°C, 0.3% over –40°C to 85°C - ensures stable CMRR and gain accuracy without calibration. |
| High-speed precision | 32 MHz bandwidth + 1000 V/µs slew rate + <0.25% gain error - meets demanding video, ATE, and fast current-sense requirements. |
| Wide supply compatibility | Operates from ±2.5V to ±15V with full spec compliance - simplifies design across battery-powered and industrial rail systems. |
| Low-noise architecture | 27 nV/√Hz input noise at G = 1 (10 kHz), reduced to 14 nV/√Hz at G = 4 - preserves SNR in sensitive analog front-ends. |
Applications
| Current Sense Amplifier | Video Difference Amplifier |
|---|---|
Use Scenario: High-side current monitoring in motor drives and power supplies using shunt resistors. IC Role / Device Role / Timing Role: Difference amplifier with G = 20–100 (via external scaling), rejecting common-mode bus voltage up to ±15 V while amplifying mV-level shunt drops. Use Value: Enables accurate real-time current feedback without galvanic isolation; CMRR >75 dB suppresses PWM switching noise. | Use Scenario: RGB or Y/C signal conditioning in broadcast video equipment requiring DC-coupled differential transmission. IC Role / Device Role / Timing Role: Precision difference amplifier with G = 2, driving 75 Ω coaxial cables with minimal gain error and phase distortion. Use Value: Differential gain error ≤0.06% and phase error ≤0.15° preserve color fidelity and sync integrity in HD video paths. |
| Automatic Test Equipment | Industrial Instrumentation |
Use Scenario: Fast analog stimulus/response channel in PXI-based ATE systems measuring device under test (DUT) voltage/current. IC Role / Device Role / Timing Role: Programmable-gain amplifier (G = 1–7) with sub-10 ns propagation delay and 100 ns 0.1% settling time. Use Value: Supports high-throughput parametric testing at >1 MSPS; slew rate and bandwidth ensure faithful reproduction of fast edge waveforms. | Use Scenario: Isolated sensor signal conditioning in PLC analog input modules interfacing strain gauges or RTDs. IC Role / Device Role / Timing Role: Precision difference amplifier with G = 1–4, referenced to system ground or isolated ADC reference. Use Value: Integrated matched resistors eliminate layout sensitivity; ±2.5V to ±15V supply range matches industrial I/O power domains. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar differential amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD8479ARZ | Fixed G = 1, 200 kHz bandwidth, 5 µV max VOS, ±500 V common-mode range | Designed for ultra-high common-mode voltage (>±200 V) current sensing, not video or ATE | Select AD8479ARZ only when >±200 V CMV rejection is required; LT1995CDD#PBF offers wider bandwidth and programmable gain. |
| INA149AIDR | Fixed G = 1, 200 kHz bandwidth, 120 dB CMRR, ±200 V CMV rating | Optimized for high-precision, high-CMV industrial sensing; lacks gain flexibility and speed | Choose INA149AIDR for DC-accurate high-CMV applications; LT1995CDD#PBF better suits AC-coupled, wideband, multi-gain needs. |
Compared with AD8479ARZ and INA149AIDR, the LT1995CDD#PBF uniquely combines programmable gain (1–7), 32 MHz bandwidth, and 1000 V/µs slew rate - making it the only option among the three capable of high-fidelity video difference amplification and fast ATE signal conditioning.
Availability
LT1995CDD#PBF is available at Aetrix Electronics and suitable for current sense amplifier, video difference amplifier, and automatic test equipment applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for LT1995CDD#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 semiconductors, serving industrial, automotive, communications, and healthcare markets.
The LT1995 belongs to ADI's precision high-speed amplifier product line, designed specifically for applications demanding both DC accuracy and wideband AC performance - including current sensing, video signal conditioning, and automated test systems.
FAQ
What is the maximum operating temperature range for the LT1995CDD#PBF?
The LT1995CDD#PBF is rated for operation from –40°C to +85°C. It is part of the "C" grade family, which is guaranteed functional across this full industrial temperature range, with electrical specifications validated per the datasheet conditions at these extremes.
Does the LT1995CDD#PBF require external resistors to set gain?
No, the LT1995CDD#PBF does not require external resistors to set gain. It integrates eight precision-matched thin-film resistors (0.2% max matching), and gain is selected solely by strapping pins P1/P2/P4 and M1/M2/M4 to VS+ or VS– - enabling 73 distinct noninverting gains and 9 difference/inverting gains without external components.
What is the function of the REF pin on the LT1995CDD#PBF?
The REF pin on the LT1995CDD#PBF sets the output DC reference level. In difference amplifier mode, VOUT = VREF + G·(VIN+ − VIN−). When used in single-supply systems, REF establishes the quiescent output bias point (e.g., mid-rail), and must be driven by a low-impedance source to preserve CMRR.
Can the LT1995CDD#PBF drive a 75 Ω coaxial cable directly?
Yes, the LT1995CDD#PBF can drive a 75 Ω coaxial cable directly. With ±15 V supplies, it delivers ±2.5 V into 150 Ω and sustains ≥30 mA output current. When configured as a G = 2 video difference amplifier, it meets SMPTE/ITU-R BT.601 swing and distortion requirements, including differential gain error ≤0.06% and phase error ≤0.15°.
How does the DFN package of the LT1995CDD#PBF affect thermal performance?
The LT1995CDD#PBF's 10-lead DFN package features an exposed pad internally connected to VS–. When soldered to a minimum 100 mm² PCB copper area, thermal resistance drops from 160°C/W (standard JEDEC board) to ~50°C/W - critical for maintaining junction temperature below 125°C during sustained 30 mA output loading at ±15 V.
LT1995CDD#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 10-WFDFN Exposed Pad
- 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:
- 750 µV
- Current - Supply:
- 7.1mA
- Current - Output / Channel:
- 120 mA
- Voltage - Supply Span (Min):
- 5 V
- Voltage - Supply Span (Max):
- 30 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-DFN (3x3)
LT1995CDD#PBF FAQ
1.How can I place an order for LT1995CDD#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1995CDD#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 LT1995CDD#PBF reliable?
The price and inventory of LT1995CDD#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1995CDD#PBF is usually 5 days.
3.What payment methods are accepted for LT1995CDD#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1995CDD#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1995CDD#PBF?
LT1995CDD#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1995CDD#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 LT1995CDD#PBF?
For technical support, including LT1995CDD#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1995CDD#PBF requirements.
6.How does Aetrix verify that LT1995CDD#PBF is sourced from the original manufacturer or authorized distributors?
All LT1995CDD#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 LT1995CDD#PBF meets industry standards.
7.What is the process for return or replacement of LT1995CDD#PBF?
All LT1995CDD#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LT1995CDD#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 LT1995CDD#PBF part is unused and in its original packaging.
Return procedure for LT1995CDD#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LT1995CDD#PBF Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
