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Analog Devices Inc. LTC6910-3CTS8#TRPBF
- Part No.:
- LTC6910-3CTS8#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-8 Thin, TSOT-23-8
- Datasheet:
-
LTC6910-3CTS8#TRPBF.pdf
- Description:
- IC OPAMP PGA 1 CIRCUIT TSOT23-8
- Quantity:
- Payment:
- Shipping:
Inventory:1,522
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Product details
Overview
LTC6910-3CTS8#TRPBF from Analog Devices is a digitally controlled, inverting programmable gain amplifier (PGA) in an 8-lead TSOT-23 package, delivering precise 3-bit gain selection (0–7 V/V), rail-to-rail output swing, and 11 MHz gain-bandwidth product for signal conditioning in low-voltage data acquisition systems.
For engineers reviewing the LTC6910-3CTS8#TRPBF datasheet, LTC6910-3CTS8#TRPBF pinout, LTC6910-3CTS8#TRPBF application, or LTC6910-3CTS8#TRPBF equivalent, key selection criteria include its single-supply operation down to 2.7V, input-referred voltage noise of 24 nV/√Hz at G=1, ±1.5 mV internal op-amp offset, and guaranteed performance over –40°C to 85°C.
Technical Context
The LTC6910-3CTS8#TRPBF implements a precision inverting amplifier topology with integrated 3-bit digital gain control (G2/G1/G0), internally generating a half-supply reference at AGND to support true rail-to-rail input operation on single supplies. Its architecture maintains stable DC accuracy across all gain settings via matched feedback networks.
It operates from 2.7V to 10.5V total supply (single or split), features 11 MHz gain-bandwidth at G=7, and achieves >120 dB system dynamic range through low 8 nV/√Hz input noise density and high PSRR (80 dB). Gain error remains within ±0.1 dB at G=1 under 5V supply conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Range | 0, 1, 2, 3, 4, 5, 6, 7 V/V - enables fine-grained analog signal scaling without external resistors |
| Gain-Bandwidth Product | 11 MHz at G=7 - supports bandwidth-critical applications like sensor front-ends up to ~1.6 MHz |
| Input Voltage Noise Density | 24 nV/√Hz at G=1 - preserves SNR in low-level signal amplification (e.g., thermocouples) |
| Supply Voltage Range | 2.7V to 10.5V total - compatible with 3.3V and 5V systems, including battery-powered designs |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade embedded instrumentation and test equipment |
| Package | 8-lead TSOT-23 (1 mm height) - ultra-compact footprint for space-constrained PCB layouts |
| Output Swing | Rail-to-rail - delivers full dynamic range into high-impedance loads without headroom loss |
Pinout & Package
Package: 8-lead TSOT-23 (ThinSOT™), 1 mm profile, lead-free, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Inverting amplifier output | Delivers rail-to-rail inverted signal; drives 10 kΩ load with <20 mV drop from rails at 5V supply |
| 2 (AGND) | Analog ground reference | Internally generates mid-supply voltage (e.g., 2.5V @ 5V); can be overdriven by external reference |
| 3 (IN) | Inverting input | Accepts rail-to-rail input when G=1; impedance varies from 10 kΩ (G=1) to 1.4 kΩ (G=7) |
| 4 (V–) | Negative supply rail | Connect to ground (single supply) or negative rail (dual supply); supports split ±2.5V operation |
| 5 (G0) | Digital gain control bit 0 | Logic input; accepts 0.27V low / 2.43V high at 2.7V supply; 2 µA leakage max |
| 6 (G1) | Digital gain control bit 1 | Same logic thresholds as G0; synchronous with G0/G2 for deterministic gain selection |
| 7 (G2) | Digital gain control bit 2 | Completes 3-bit code; all three inputs must be stable before gain settles (typ. 100 ns) |
| 8 (V+) | Positive supply rail | Accepts 2.7V–10.5V; draws 2.4 mA typical at 5V, enabling low-power portable use |
Key Features
| Feature | Design Value |
|---|---|
| Digitally programmable gain | 3-bit parallel interface selects eight discrete gains (0–7 V/V) with no external components required |
| Rail-to-rail input and output | Enables full-scale signal handling on 2.7V single supply-critical for low-voltage sensor interfaces |
| Internal half-supply reference | AGND pin provides stable 5 kΩ source impedance reference, eliminating need for external divider |
| Low input-referred noise | 8 nV/√Hz at 1 kHz (G=1) ensures minimal degradation of weak signal integrity in precision ADC front-ends |
| High dynamic range | 120 dB system-level dynamic range achieved via low offset (±1.5 mV), low noise, and THD < –90 dB |
Applications
| Industrial Sensor Signal Conditioning | Portable Data Acquisition Front-End |
|---|---|
Use Scenario: Amplifying low-level outputs from strain gauges or RTDs in PLC analog input modules. IC Role / Device Role / Timing Role: Inverting PGA providing programmable gain to match sensor full-scale to ADC input range. Use Value: Eliminates manual calibration and external resistor networks; 0–7 V/V range covers common bridge sensor sensitivities. | Use Scenario: Battery-powered handheld multimeter acquiring AC/DC voltage and current signals. IC Role / Device Role / Timing Role: Digitally reconfigurable gain stage adapting input range to fixed 12-bit ADC resolution. Use Value: Single-supply 2.7V operation extends battery life; rail-to-rail I/O maximizes usable ADC codes. |
| Automatic Gain Control Loop | Medical Instrumentation Signal Path |
Use Scenario: Maintaining constant amplitude in ultrasound receiver chains despite variable transducer coupling. IC Role / Device Role / Timing Role: Fast-settling gain element controlled by microcontroller based on envelope detection. Use Value: 100 ns gain settling time enables real-time AGC response; low THD (< –90 dB) preserves signal fidelity. | Use Scenario: ECG front-end amplifying microvolt-level cardiac signals while rejecting electrode motion artifacts. IC Role / Device Role / Timing Role: First-stage programmable gain amplifier with high CMRR and low noise density. Use Value: 24 nV/√Hz input noise and 80 dB AGND rejection minimize baseline wander and interference. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable gain amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD8253ARMZ | 4-channel, SPI-controlled, 10–1000 V/V gain; higher power (3.5 mA), larger 16-lead MSOP package | Multi-channel, higher-gain, digital-control systems requiring serial interface and channel synchronization | Select AD8253ARMZ when multi-channel coordination or >7 V/V gain is required; not pin-compatible |
| MAX4208ETA+ | Single-supply, rail-to-rail I/O, 1–100 V/V gain; 10 MHz GBW; 10-lead µMAX package | Higher-gain applications needing wider bandwidth and lower cost; lacks internal AGND reference | Select MAX4208ETA+ for cost-sensitive designs requiring >7 V/V gain and external reference flexibility |
Compared with AD8253ARMZ and MAX4208ETA+, the LTC6910-3CTS8#TRPBF offers the smallest footprint (TSOT-23), lowest quiescent current (2.4 mA), and built-in half-supply reference-making it optimal for space- and power-constrained single-channel sensor interfaces where gain ≤7 V/V suffices.
Availability
LTC6910-3CTS8#TRPBF is available at Aetrix Electronics and suitable for industrial sensor interfaces, portable data acquisition systems, and medical instrumentation requiring stable component supply, long-term lifecycle support, and guaranteed –40°C to +85°C operation.
Supply support for LTC6910-3CTS8#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 (acquired Linear Technology in 2017) is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors.
The LTC6910 family was designed specifically for precision, low-power, digitally programmable gain amplification in space-constrained industrial and medical signal chains-emphasizing rail-to-rail operation, internal reference generation, and robust DC accuracy.
FAQ
What gain settings does the LTC6910-3CTS8#TRPBF support?
The LTC6910-3CTS8#TRPBF 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#TRPBF does not offer gains above 7 V/V or logarithmic steps-its linear progression is optimized for fine-resolution scaling in low-gain sensor interfaces.
Does the LTC6910-3CTS8#TRPBF require external components for single-supply operation?
No, the LTC6910-3CTS8#TRPBF does not require external components for single-supply operation. Its AGND pin internally generates a precise half-supply reference (e.g., 2.5 V at 5 V supply) with 5 kΩ source impedance, enabling true rail-to-rail input capability. Only decoupling capacitors (0.1 µF on V+ and 1 µF on AGND) are recommended per the datasheet for stability.
What is the maximum operating temperature range for the LTC6910-3CTS8#TRPBF?
The LTC6910-3CTS8#TRPBF is rated for operation from –40°C to +85°C (C-grade). This temperature range is fully specified and tested per the datasheet, covering industrial environments. The 'C' suffix in LTC6910-3CTS8#TRPBF explicitly denotes this commercial/industrial grade-not the extended –40°C to +125°C H-grade variant.
How does the LTC6910-3CTS8#TRPBF achieve rail-to-rail input performance?
The LTC6910-3CTS8#TRPBF achieves rail-to-rail input performance by combining an internal half-supply reference at the AGND pin with a precision inverting amplifier topology. When configured for unity gain (G=1), the input stage accepts signals from V– to V+, provided AGND is at mid-supply. This eliminates the need for level-shifting circuitry in single-supply sensor front-ends.
Is the LTC6910-3CTS8#TRPBF pin-compatible with other members of the LTC6910 family?
Yes, the LTC6910-3CTS8#TRPBF is pin-compatible with the LTC6910-1CTS8#TRPBF and LTC6910-2CTS8#TRPBF in the same TSOT-23 package. All share identical pinout (OUT, AGND, IN, V–, G0, G1, G2, V+), allowing direct substitution in PCB layouts-but gain tables, bandwidth, and noise performance differ per variant, so firmware and system-level validation are required after replacement.
LTC6910-3CTS8#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
LTC6910-3CTS8#TRPBF FAQ
1.How can I place an order for LTC6910-3CTS8#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6910-3CTS8#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 LTC6910-3CTS8#TRPBF reliable?
The price and inventory of LTC6910-3CTS8#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6910-3CTS8#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC6910-3CTS8#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6910-3CTS8#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6910-3CTS8#TRPBF?
LTC6910-3CTS8#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6910-3CTS8#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 LTC6910-3CTS8#TRPBF?
For technical support, including LTC6910-3CTS8#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6910-3CTS8#TRPBF requirements.
6.How does Aetrix verify that LTC6910-3CTS8#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC6910-3CTS8#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 LTC6910-3CTS8#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC6910-3CTS8#TRPBF?
All LTC6910-3CTS8#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6910-3CTS8#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 LTC6910-3CTS8#TRPBF part is unused and in its original packaging.
Return procedure for LTC6910-3CTS8#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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