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Analog Devices Inc. LTC6910-3CTS8#TRMPBF
- Part No.:
- LTC6910-3CTS8#TRMPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-8 Thin, TSOT-23-8
- Datasheet:
-
LTC6910-3CTS8#TRMPBF.pdf
- Description:
- IC OPAMP PGA 1 CIRCUIT TSOT23-8
- Quantity:
- Payment:
- Shipping:
Inventory:6,872
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Product details
Overview
LTC6910-3CTS8#TRMPBF from Analog Devices is a digitally controlled, inverting programmable gain amplifier (PGA) with 3-bit digital gain selection (0–7 V/V), rail-to-rail output, and internal half-supply reference at AGND for single-supply operation. It operates from 2.7V to 10.5V total supply, delivers 11MHz gain-bandwidth product at G = 7, and achieves input-referred voltage noise as low as 10.5nV/√Hz - ideal for precision sensor signal conditioning in portable data acquisition systems.
For engineers reviewing the LTC6910-3CTS8#TRMPBF datasheet, LTC6910-3CTS8#TRMPBF pinout, LTC6910-3CTS8#TRMPBF application, or LTC6910-3CTS8#TRMPBF equivalent, key selection criteria include its fixed low-gain range (0–7×), 8-pin TSOT-23 package footprint, guaranteed –40°C to 85°C operation, and compatibility with 3.3V/5V logic-level digital control inputs.
Technical Context
The LTC6910-3CTS8#TRMPBF implements an inverting amplifier topology with a precision internal op amp and digitally selectable feedback network. Its 3-bit G2/G1/G0 inputs directly configure eight discrete gain states (0, 1, 2, 3, 4, 5, 6, 7 V/V), with gain accuracy within ±0.1dB at G = 1 and ±0.2dB at G = 7 under 5V supply conditions.
It features an internally generated AGND reference at ~VS/2 (2.45–2.55V at VS = 5V), enabling true rail-to-rail input signal handling when used with single supplies. Output swing is specified to within 20mV of each rail into 10kΩ load, and small-signal output resistance ranges from 0.7Ω (G = 1) to 2.5Ω (G = 7).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Range | 0, 1, 2, 3, 4, 5, 6, 7 V/V - fixed low-gain set optimized for high linearity and wide input dynamic range |
| Gain-Bandwidth Product | 11 MHz at G = 7 - supports bandwidths up to ~1.57 MHz (11 MHz / 7) for closed-loop applications |
| Input Voltage Noise Density | 10.5 nV/√Hz at G = 7, f = 50 kHz - enables high-SNR amplification of microvolt-level sensor outputs |
| Supply Range | 2.7V to 10.5V total - supports single 3.3V, 5V, or dual ±2.5V/±5V operation without external biasing |
| Output Swing | Within 20 mV of rails into 10 kΩ - ensures full utilization of ADC input range in 12–16-bit data acquisition |
| Digital Input Thresholds | VIH = 4.5 V, VIL = 0.5 V at VS = 5 V - compatible with standard CMOS logic without level-shifting |
| Operating Temperature | –40°C to +85°C - qualified for industrial and automotive cabin environments |
Pinout & Package
Package: 8-lead TSOT-23 (ThinSOT™), 1 mm height, 0.65 mm pitch - footprint-compatible with industry-standard SOT-23-8 layouts and reflow-process ready.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Inverting amplifier output | Delivers rail-to-rail inverted signal; drives 10 kΩ loads to within 20 mV of supply rails |
| 2 (AGND) | Analog ground reference | Internally biased at ~VS/2 (2.5 V typical); can be overdriven by system reference for improved PSRR |
| 3 (IN) | Inverting input | Accepts rail-to-rail input signals; DC input resistance = 10 kΩ at G = 1, 1.4 kΩ at G = 7 |
| 4 (V–) | Negative supply | Connect to ground (single supply) or negative rail (dual supply); supports split-rail operation down to ±1.35 V |
| 5 (G0) | LSB digital gain control | CMOS-compatible input; 0.5 V/4.5 V thresholds at 5 V supply; no pull-up required |
| 6 (G1) | MSB-1 digital gain control | Directly selects gain state per Table 3; timing-insensitive static control (no clock required) |
| 7 (G2) | MSB digital gain control | Together with G1/G0, defines one of eight gain codes; valid during power-up after supply stabilization |
| 8 (V+) | Positive supply | Accepts 2.7–10.5 V; internal regulator powers core circuitry - supply current = 2.4 mA typical at 5 V |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full-scale signal capture from sensors with output swings near supply rails (e.g., bridge transducers, thermocouples) |
| Internal half-supply AGND reference | Eliminates need for external resistor divider or reference IC in single-supply designs - reduces BOM count and layout area |
| Low gain nonlinearity | Gain error ≤ ±0.2 dB across all settings at 25°C - preserves amplitude fidelity in automatic ranging and calibration loops |
| 11 MHz GBW at G = 7 | Supports >1 MHz closed-loop bandwidth for fast transient response in real-time control feedback paths |
| 1.4 kΩ minimum input impedance at G = 7 | Maintains signal integrity when driving from high-impedance sources such as piezoelectric sensors or photodiode TIA outputs |
Applications
| Industrial Sensor Interface | Portable Data Acquisition |
|---|---|
Use Scenario: Amplifying low-level mV-range outputs from strain gauges and pressure transducers in PLC analog input modules. IC Role / Device Role / Timing Role: Inverting PGA providing programmable gain (1–7×) and rail-to-rail output to match 16-bit SAR ADC full-scale range. Use Value: Eliminates manual gain-switching hardware; enables auto-ranging firmware that adapts to varying sensor sensitivities without recalibration. | Use Scenario: Signal conditioning stage in handheld multimeters and battery-powered oscilloscope probes. IC Role / Device Role / Timing Role: Digitally configured gain block operating from single 3.3V supply, using internal AGND to support bipolar input signals. Use Value: Reduces component count vs. discrete op-amp + DAC solution; extends battery life via 2.4 mA quiescent current at 3.3V. |
| Medical Vital Sign Monitoring | Automotive Cabin Sensors |
Use Scenario: Front-end amplification of ECG electrode signals with adaptive gain to handle motion artifacts and baseline wander. IC Role / Device Role / Timing Role: Low-noise (10.5 nV/√Hz), low-distortion (–90 dB THD at 10 kHz) inverting amplifier with G = 1–5 programmability. Use Value: Preserves diagnostic signal fidelity while enabling dynamic gain adjustment to maintain optimal ADC utilization across patient types. | Use Scenario: Conditioning outputs from cabin temperature, humidity, and CO₂ sensors in automotive HVAC control units. IC Role / Device Role / Timing Role: Precision gain stage operating across –40°C to +85°C, interfacing with 3.3V microcontroller GPIOs for gain selection. Use Value: Guarantees stable performance over full automotive temperature range without external trimming or calibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable gain amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4208ETA+ | Single-supply, rail-to-rail I/O, 8-pin µMAX; gain range 1–100 V/V (4-bit); higher supply current (3.5 mA) | Broader gain range suits wider dynamic input spans; less suitable for ultra-low-power portable use | Select when >10× gain or lower input bias current (<1 pA) is required - not drop-in compatible due to different pinout and control interface |
| AD8253ARMZ | 36 V supply capable, SPI interface, gain 1–100× in 100× steps; integrated reference buffer; 10-lead MSOP | Targeted at high-voltage industrial DAQ; requires serial configuration vs. parallel 3-bit control | Choose for high-precision, high-supply applications requiring calibrated gain accuracy and SPI configurability - incompatible pinout and digital interface |
Compared with MAX4208ETA+ and AD8253ARMZ, the LTC6910-3CTS8#TRMPBF offers the narrowest, most linear low-gain range (0–7×), lowest profile (1 mm TSOT-23), and simplest parallel digital interface - making it optimal for space-constrained, low-power, single-supply systems where fine-grained low-gain control is critical.
Availability
LTC6910-3CTS8#TRMPBF is available at Aetrix Electronics and suitable for industrial sensor interfaces, portable data acquisition systems, medical vital sign monitors, and automotive cabin sensor signal chains requiring stable component supply and long-term manufacturability.
Supply support for LTC6910-3CTS8#TRMPBF 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 (acquired Linear Technology in 2017) is a global leader in high-performance analog, mixed-signal, and digital signal processing technologies.
The LTC6910 family was designed specifically for precision, low-power, digitally programmable amplification in space- and power-constrained systems - emphasizing rail-to-rail operation, internal reference generation, and minimal external components.
FAQ
What gain settings does the LTC6910-3CTS8#TRMPBF support?
The LTC6910-3CTS8#TRMPBF supports eight discrete inverting gain settings: 0, 1, 2, 3, 4, 5, 6, and 7 V/V, selected via the 3-bit parallel digital inputs G2/G1/G0. Unlike the LTC6910-1 and LTC6910-2 variants, the LTC6910-3CTS8#TRMPBF does not offer gains above 7 V/V or logarithmic spacing - its linear low-gain set prioritizes amplitude accuracy and wide input common-mode range.
Can the LTC6910-3CTS8#TRMPBF operate from a single 3.3V supply?
Yes, the LTC6910-3CTS8#TRMPBF operates from a single 3.3V supply (2.7V to 10.5V total). Its internal AGND pin provides a stable ~1.65V reference, enabling rail-to-rail input signal handling. At 3.3V, the device draws 2.4 mA typical supply current and maintains output swing within 30 mV of each rail into 10 kΩ - fully compatible with 3.3V microcontrollers and ADCs.
Does the LTC6910-3CTS8#TRMPBF require external resistors for gain setting?
No, the LTC6910-3CTS8#TRMPBF integrates all gain-setting resistors and the amplifier core in a monolithic design. Gain is selected solely by the logic states on pins G2/G1/G0 - no external resistors, DACs, or configuration registers are needed. This eliminates gain drift, matching errors, and board space associated with discrete resistor networks.
How does the AGND pin function in the LTC6910-3CTS8#TRMPBF?
The AGND pin of the LTC6910-3CTS8#TRMPBF provides an internally generated reference at approximately VS/2 (e.g., 1.65V at 3.3V, 2.5V at 5V). It serves as the common-mode reference for the inverting amplifier, enabling true rail-to-rail input operation with single supplies. AGND may also be driven externally by a precision system reference to improve PSRR and reduce ground bounce sensitivity.
What is the maximum operating temperature for the LTC6910-3CTS8#TRMPBF?
Per the order information table, the LTC6910-3CTS8#TRMPBF is the C-grade variant, rated for operation from –40°C to +85°C. This temperature range is fully specified and tested - including gain accuracy, offset voltage, and bandwidth - making it suitable for industrial automation, medical devices, and automotive cabin applications where ambient temperatures remain below 85°C.
LTC6910-3CTS8#TRMPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- SOT-23-8 Thin, TSOT-23-8
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Programmable Gain
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 16V/µs
- Gain Bandwidth Product:
- 11 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- -
- Voltage - Input Offset:
- 1.5 mV
- Current - Supply:
- 3.5mA
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 10.5 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-23-8
LTC6910-3CTS8#TRMPBF FAQ
1.How can I place an order for LTC6910-3CTS8#TRMPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6910-3CTS8#TRMPBF 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 LTC6910-3CTS8#TRMPBF reliable?
The price and inventory of LTC6910-3CTS8#TRMPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6910-3CTS8#TRMPBF is usually 5 days.
3.What payment methods are accepted for LTC6910-3CTS8#TRMPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6910-3CTS8#TRMPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6910-3CTS8#TRMPBF?
LTC6910-3CTS8#TRMPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6910-3CTS8#TRMPBF 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 LTC6910-3CTS8#TRMPBF?
For technical support, including LTC6910-3CTS8#TRMPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6910-3CTS8#TRMPBF requirements.
6.How does Aetrix verify that LTC6910-3CTS8#TRMPBF is sourced from the original manufacturer or authorized distributors?
All LTC6910-3CTS8#TRMPBF 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 LTC6910-3CTS8#TRMPBF meets industry standards.
7.What is the process for return or replacement of LTC6910-3CTS8#TRMPBF?
All LTC6910-3CTS8#TRMPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6910-3CTS8#TRMPBF, 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 LTC6910-3CTS8#TRMPBF part is unused and in its original packaging.
Return procedure for LTC6910-3CTS8#TRMPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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