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Analog Devices Inc. LTC6910-1CTS8#TRPBF
- Part No.:
- LTC6910-1CTS8#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-8 Thin, TSOT-23-8
- Datasheet:
-
LTC6910-1CTS8#TRPBF.pdf
- Description:
- IC OPAMP PGA 1 CIRCUIT TSOT23-8
- Quantity:
- Payment:
- Shipping:
Inventory:3,229
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Product details
Overview
LTC6910-1CTS8#TRPBF from Analog Devices (formerly Linear Technology) is a digitally controlled, inverting programmable gain amplifier (PGA) in an 8-lead TSOT-23 package. It delivers rail-to-rail output swing, 11MHz gain-bandwidth product, 8nV/√Hz input voltage noise density at gain=1, and selectable gains of 0, 1, 2, 5, 10, 20, 50, or 100 V/V via 3-bit digital inputs. It supports single-supply operation down to 2.7V with internal half-supply AGND reference and is used in precision data acquisition front-ends where dynamic range and low-noise signal conditioning are critical.
For engineers reviewing the LTC6910-1CTS8#TRPBF datasheet, LTC6910-1CTS8#TRPBF pinout, LTC6910-1CTS8#TRPBF application, or LTC6910-1CTS8#TRPBF equivalent, key selection criteria include verified gain accuracy across all eight settings, rail-to-rail input/output capability under 3V supply, AGND reference stability, and guaranteed performance over –40°C to 85°C for industrial sensor interfaces.
Technical Context
The LTC6910-1CTS8#TRPBF implements a precision inverting amplifier topology with integrated 3-bit digital decoder and internal op-amp core. Its gain control logic maps G2/G1/G0 inputs directly to discrete resistor networks that set closed-loop gain without external components. The internal AGND pin provides a stable mid-supply reference (2.45–2.55V at VS = 5V), enabling true single-supply operation while maintaining rail-to-rail input range when configured for unity gain.
It operates from total supply voltages of 2.7V to 10.5V (single or split), draws 2–3.5mA supply current, and achieves >120dB system dynamic range. Gain-bandwidth trade-off is explicit: bandwidth drops from ~11MHz at G=1 to ~140kHz at G=100, per measured –3dB frequency vs. gain curves. Input offset referred to IN pin is 3mV max at G=1 and 1.7mV max at G=10.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Settings | 0, 1, 2, 5, 10, 20, 50, 100 V/V - discrete, digitally selected, no external resistors required |
| Gain-Bandwidth Product | 11 MHz at G=1 - enables high-speed signal conditioning up to ~10MHz at unity gain |
| Voltage Noise Density | 8 nV/√Hz at G=1, f=50kHz - ensures low-noise amplification for µV-level sensor signals |
| Input Offset Voltage (referred to IN) | 3 mV max at G=1 - sets DC error floor for precision measurement paths |
| Supply Range | 2.7V to 10.5V total - supports battery-powered (3V) and industrial (±5V) supplies |
| Operating Temperature | –40°C to +85°C - qualified for extended industrial environments |
| Package | 8-lead TSOT-23 (1mm height) - ultra-compact footprint for space-constrained PCBs |
Pinout & Package
Package: 8-lead plastic TSOT-23 (ThinSOT™), 1mm profile, lead-free, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Inverting amplifier output | Rail-to-rail swing; drives loads ≥500Ω with <100mV headroom at ±5V supply |
| 2 (AGND) | Analog ground reference | Internally generated ~VS/2 (2.45–2.55V at 5V); can be overdriven by external reference |
| 3 (IN) | Inverting input | High-impedance node (≥10MΩ at G=0); accepts rail-to-rail input when G=1 |
| 4 (V–) | Negative supply | Connect to ground (single supply) or negative rail (dual supply); must be ≤ V+ – 2.7V |
| 5 (G0) | Digital gain control bit 0 | CMOS-compatible input; VIH ≥ 2.43V @ 2.7V supply; drives internal decoder |
| 6 (G1) | Digital gain control bit 1 | Same logic thresholds as G0; together with G2, selects one of eight gain states |
| 7 (G2) | Digital gain control bit 2 | MSB of 3-bit code; all three bits latched on power-up or supply stabilization |
| 8 (V+) | Positive supply | Accepts 2.7V to 10.5V; decoupling with 0.1µF ceramic required near pin |
Key Features
| Feature | Design Value |
|---|---|
| Digitally programmable gain | Eight precise, factory-trimmed gain ratios (0–100 V/V) eliminate manual resistor selection and layout tuning |
| Rail-to-rail input/output | Enables full dynamic range utilization from 0V to VS in single-supply systems without level-shifting circuitry |
| Internal AGND reference | 5kΩ impedance, 2.5V ±50mV at 5V supply - reduces BOM count and improves reference stability vs. external dividers |
| Low input voltage noise | 8nV/√Hz at G=1 ensures minimal degradation of SNR for low-amplitude transducer signals |
| 120dB system dynamic range | Combines low noise, low distortion (<0.003% THD+N at 10kHz), and high PSRR (80dB) for high-fidelity signal chains |
Applications
| Data Acquisition Front-End | Industrial Sensor Interface |
|---|---|
Use Scenario: Amplifying low-level outputs from strain gauges, thermocouples, or bridge sensors before ADC sampling. IC Role / Device Role / Timing Role: Precision inverting PGA providing programmable gain and rail-to-rail signal conditioning prior to 16–24-bit SAR or delta-sigma ADC. Use Value: Eliminates external gain-setting resistors and reference buffers; maintains 120dB dynamic range even at 3V supply. | Use Scenario: Signal conditioning in PLC analog input modules handling 4–20mA, 0–10V, or RTD inputs. IC Role / Device Role / Timing Role: Digitally reconfigurable gain stage adapting to multiple sensor types and ranges within one hardware design. Use Value: Reduces calibration overhead and board variants; AGND reference simplifies single-supply isolation barrier design. |
| Portable Medical Instrumentation | Automated Test Equipment (ATE) |
Use Scenario: Low-power ECG or EEG front-end amplifying microvolt-level bio-signals with adjustable gain per patient or channel. IC Role / Device Role / Timing Role: Battery-operated, low-noise PGA delivering 8nV/√Hz noise floor and <3.5mA quiescent current at 3V. Use Value: Extends battery life while preserving diagnostic signal fidelity; TSOT-23 footprint saves space in handheld enclosures. | Use Scenario: Multi-channel signal source or measurement path in benchtop ATE requiring fast gain switching between test steps. IC Role / Device Role / Timing Role: Digitally controlled gain element synchronized to test sequencer via parallel G2/G1/G0 lines. Use Value: Enables sub-microsecond gain reconfiguration without op-amp settling delays; 11MHz GBW supports 100ksps+ waveform generation. |
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, 3-bit gain (1–100 V/V), but only 3.5MHz GBW and 12nV/√Hz noise at G=1 | Lower bandwidth and higher noise limit use in >1MHz or ultra-low-noise applications | Select MAX4208ETA+ only if cost sensitivity outweighs need for 11MHz GBW or 8nV/√Hz noise |
| AD8253ARMZ | 36V supply capable, SPI interface (not parallel), 10ppm/°C gain drift vs. LTC6910-1's uncalibrated drift; 10MHz GBW, 8.5nV/√Hz | Requires SPI controller and level-shifting for 3.3V systems; better for high-voltage industrial inputs | Choose AD8253ARMZ when wide supply range (>10.5V) or digital bus integration is mandatory |
Compared with MAX4208ETA+ and AD8253ARMZ, the LTC6910-1CTS8#TRPBF offers superior small-signal bandwidth (11MHz) and lower input voltage noise (8nV/√Hz) in a simpler parallel-control 8-pin package, making it optimal for compact, high-fidelity, medium-speed data acquisition where minimal external components and proven rail-to-rail performance are essential.
Availability
LTC6910-1CTS8#TRPBF is available at Aetrix Electronics and suitable for industrial sensor interfaces, portable medical instrumentation, automated test equipment, and precision data acquisition systems requiring stable component supply across extended temperature ranges.
Supply support for LTC6910-1CTS8#TRPBF 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, formed through the acquisition of Linear Technology in 2017.
The LTC6910 family was designed by Linear Technology specifically for low-noise, digitally programmable gain amplification in space- and power-constrained applications, emphasizing ease of use, minimal external components, and robust rail-to-rail operation across wide supply and temperature ranges.
FAQ
What gain settings does the LTC6910-1CTS8#TRPBF support?
The LTC6910-1CTS8#TRPBF supports eight discrete, digitally selectable voltage gains: 0, 1, 2, 5, 10, 20, 50, and 100 V/V. These are set using the 3-bit parallel digital inputs G2, G1, and G0. Gain = 0 provides signal attenuation greater than 120dB, effectively muting the output. All gain values are specified with typical accuracy within ±0.1dB at G=1 and ±0.2dB at G=100 under standard conditions, as confirmed in the Electrical Characteristics table for the LTC6910-1.
Does the LTC6910-1CTS8#TRPBF require external resistors to set gain?
No, the LTC6910-1CTS8#TRPBF does not require external resistors to set gain. All eight gain settings are implemented using factory-trimmed internal resistor networks controlled directly by the G2/G1/G0 digital inputs. This eliminates layout sensitivity, matching errors, and thermal drift associated with external gain-setting components - a core design feature confirmed in the "Description" and "Features" sections of the official datasheet.
Can the LTC6910-1CTS8#TRPBF operate from a single 3V supply?
Yes, the LTC6910-1CTS8#TRPBF is fully specified to operate from a single 3V supply (2.7V minimum). It delivers rail-to-rail output swing and supports rail-to-rail input signals when configured for unity gain. The internal AGND pin provides a stable ~1.5V reference (half of 3V), enabling proper biasing without external components. Performance metrics including gain accuracy, noise, and bandwidth are validated down to 2.7V in the Electrical Characteristics tables.
What is the maximum operating temperature for the LTC6910-1CTS8#TRPBF?
The LTC6910-1CTS8#TRPBF is rated for operation from –40°C to +85°C. This is the C-grade temperature range, explicitly listed in the "Order Information" table for part numbers ending in "CTS8". The device is characterized and guaranteed to meet all specifications across this full industrial temperature range, with parameters such as offset voltage drift (6–8 µV/°C), gain stability, and PSRR validated per the datasheet's "Electrical Characteristics" section.
How is the AGND pin used in the LTC6910-1CTS8#TRPBF?
The AGND pin (Pin 2) of the LTC6910-1CTS8#TRPBF provides an internally generated reference voltage equal to approximately half the supply voltage (e.g., 2.45–2.55V at VS = 5V), with a nominal source impedance of 5kΩ. It serves as the common-mode reference for the inverting amplifier and enables true single-supply operation. The datasheet confirms AGND can also be driven externally by a system analog ground reference near mid-supply, offering flexibility in noise-sensitive or isolated designs.
LTC6910-1CTS8#TRPBF 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:
- 35 mA
- 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
LTC6910-1CTS8#TRPBF FAQ
1.How can I place an order for LTC6910-1CTS8#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6910-1CTS8#TRPBF 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 LTC6910-1CTS8#TRPBF reliable?
The price and inventory of LTC6910-1CTS8#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6910-1CTS8#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC6910-1CTS8#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6910-1CTS8#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6910-1CTS8#TRPBF?
LTC6910-1CTS8#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6910-1CTS8#TRPBF 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 LTC6910-1CTS8#TRPBF?
For technical support, including LTC6910-1CTS8#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6910-1CTS8#TRPBF requirements.
6.How does Aetrix verify that LTC6910-1CTS8#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC6910-1CTS8#TRPBF 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 LTC6910-1CTS8#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC6910-1CTS8#TRPBF?
All LTC6910-1CTS8#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6910-1CTS8#TRPBF, 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 LTC6910-1CTS8#TRPBF part is unused and in its original packaging.
Return procedure for LTC6910-1CTS8#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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