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Analog Devices Inc. LTC6910-3HTS8#TRPBF
- Part No.:
- LTC6910-3HTS8#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-8 Thin, TSOT-23-8
- Datasheet:
-
LTC6910-3HTS8#TRPBF.pdf
- Description:
- IC OPAMP PGA 1 CIRCUIT TSOT23-8
- Quantity:
- Payment:
- Shipping:
Inventory:2,386
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Product details
Overview
LTC6910-3HTS8#TRPBF from Analog Devices (formerly Linear Technology) 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. It operates from single or dual supplies (2.7V to 10.5V), delivers 11MHz gain-bandwidth product at G = 7, and supports precision signal conditioning in data acquisition systems requiring dynamic range up to 120dB.
For engineers reviewing the LTC6910-3HTS8#TRPBF datasheet, LTC6910-3HTS8#TRPBF pinout, LTC6910-3HTS8#TRPBF application, or LTC6910-3HTS8#TRPBF equivalent, key selection criteria include its −40°C to 125°C operating temperature range, low 8nV/√Hz input voltage noise density at G = 1, 1.5mV max input offset voltage, and compatibility with 3.3V/5V logic-level digital control inputs.
Technical Context
The LTC6910-3HTS8#TRPBF implements an inverting amplifier topology with three digital gain-select pins (G2/G1/G0) that configure nominal gains of 0, 1, 2, 3, 4, 5, 6, or 7 V/V. Its internal op amp features rail-to-rail output swing and supports rail-to-rail input operation only at unity gain.
It integrates an on-chip 5kΩ resistive divider generating a stable half-supply reference at the AGND pin, enabling single-supply operation without external biasing. Gain accuracy is maintained across supply voltages (2.7V–10.5V) and temperature (−40°C to 125°C), with gain error ≤ ±0.1 dB at G = 1 and ≤ ±0.2 dB at G = 7 under typical conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Range | 0, 1, 2, 3, 4, 5, 6, 7 V/V - discrete linear gain steps for precise analog scaling without external resistors |
| Gain-Bandwidth Product | 11 MHz at G = 7 - enables ≥1.5 MHz closed-loop bandwidth for G = 7 signal paths |
| Input Voltage Noise Density | 24 nV/√Hz at G = 1 - preserves SNR in low-level sensor front-ends |
| Input Offset Voltage | 1.5 mV max (referred to IN pin) - limits DC error in precision amplification stages |
| Supply Voltage Range | 2.7 V to 10.5 V total - supports single 3.3V/5V or dual ±2.5V/±5V operation |
| Operating Temperature | −40°C to +125°C - qualified for automotive under-hood and industrial harsh-environment use |
| Digital Input Logic Levels | VIH = 2.43 V min (at VS = 2.7 V); VIL = 0.27 V max - compatible with standard 3.3V CMOS logic |
Pinout & Package
Package: 8-lead TSOT-23 (ThinSOT™), 1mm height, RoHS-compliant, lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Inverting amplifier output | Rail-to-rail output capable of driving ≥10kΩ loads with <100mV headroom to rails |
| 2 (AGND) | Analog ground reference | Internally generated half-supply voltage (e.g., 2.5V at VS = 5V); can be overdriven by external system reference |
| 3 (IN) | Inverting input | Main signal input node; high-impedance (≥10MΩ at G = 0) with rail-to-rail capability at G = 1 |
| 4 (V−) | Negative supply | Connect to ground (single supply) or negative rail (dual supply); required for proper biasing |
| 5 (G0) | LSB gain control input | CMOS-compatible digital input; sets gain bit 0 (G2G1G0 = 000 → G = 0) |
| 6 (G1) | Mid-bit gain control input | CMOS-compatible digital input; sets gain bit 1 |
| 7 (G2) | MSB gain control input | CMOS-compatible digital input; sets gain bit 2 |
| 8 (V+) | Positive supply | Accepts 2.7V–10.5V; powers internal op amp and reference circuitry |
Key Features
| Feature | Design Value |
|---|---|
| 3-bit digital gain programming | Enables microcontroller-driven gain switching without reconfiguration of external feedback networks |
| Rail-to-rail output swing | Delivers full dynamic range into high-impedance loads, maximizing ADC utilization in data acquisition |
| Internal half-supply reference (AGND) | Eliminates need for external bias divider in single-supply applications, reducing BOM count and layout area |
| Low 8nV/√Hz input-referred noise at G = 1 | Supports high-fidelity amplification of µV-level sensor outputs without significant SNR degradation |
| 120dB system dynamic range | Enables direct digitization of wide-amplitude signals (e.g., strain gauge, thermocouple) without manual ranging |
Applications
| Industrial Sensor Signal Conditioning | Automotive Battery Monitoring |
|---|---|
Use Scenario: Amplifying low-level bridge sensor outputs (e.g., pressure, load cell) with automatic gain adjustment based on signal amplitude. IC Role / Device Role / Timing Role: Inverting PGA providing programmable gain and rail-to-rail output to match ADC input range. Use Value: Enables single-channel hardware support for multiple sensor sensitivities without PCB redesign or jumper configuration. | Use Scenario: Scaling battery pack cell voltages (0–4.2V) to fit 0–3.3V ADC input range while maintaining resolution across full SOC. IC Role / Device Role / Timing Role: Precision inverting amplifier with digitally selected gain (e.g., G = 0.8 for 4.2V→3.36V) and internal reference. Use Value: Reduces calibration overhead and improves measurement consistency across temperature (−40°C to 125°C). |
| Portable Medical Instrumentation | Test & Measurement Front-Ends |
Use Scenario: Conditioning ECG electrode signals with adaptive gain to handle baseline wander and R-wave amplitude variation. IC Role / Device Role / Timing Role: Low-noise, low-offset PGA with fast digital gain update (<100ns propagation delay) for real-time signal optimization. Use Value: Maintains >100dB SNR at G = 1 while supporting dynamic gain changes during acquisition without settling artifacts. | Use Scenario: Programmable gain stage in automated test equipment (ATE) channel cards requiring calibrated signal scaling. IC Role / Device Role / Timing Role: Digitally controlled inverting amplifier with traceable gain accuracy (±0.1 dB) and stable offset over temperature. Use Value: Eliminates manual gain resistor swapping and enables software-defined instrument configurations. |
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, 10MHz GBW, G = 1/10/100/1000; higher gain range but no G = 0 option | Requires serial interface and separate power domains; better for multi-channel synchronized gain control | Select when SPI-based centralized gain management and higher gain ratios are needed over parallel 3-bit control |
| LTC6915IG#PBF | Single-ended input, G = 1/2/4/8/16/32/64/128; 12MHz GBW; wider supply range (2.7V–10.5V); same TSOT-23 package | Non-inverting architecture; lacks AGND reference; requires external bias for single-supply use | Select when non-inverting topology and higher maximum gain (128×) are preferred, accepting added external components |
Compared with AD8253ARMZ and LTC6915IG#PBF, the LTC6910-3HTS8#TRPBF uniquely combines inverting topology, zero-gain mute function, integrated half-supply reference, and guaranteed −40°C to 125°C operation in a minimal 8-pin footprint-making it optimal for space-constrained, single-supply, digitally ranged sensor interfaces.
Availability
LTC6910-3HTS8#TRPBF is available at Aetrix Electronics and suitable for industrial sensor conditioning, automotive battery monitoring, and portable medical instrumentation requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LTC6910-3HTS8#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, serving industrial, automotive, communications, and healthcare markets.
The LTC6910 family was designed specifically for compact, low-power, digitally programmable analog signal conditioning-targeting applications where board space, supply flexibility, and temperature robustness are critical.
FAQ
What is the maximum operating temperature for the LTC6910-3HTS8#TRPBF?
The LTC6910-3HTS8#TRPBF is rated for continuous operation from −40°C to +125°C, with full electrical specifications guaranteed across this extended temperature range. This H-grade qualification makes it suitable for under-hood automotive, industrial motor control, and outdoor infrastructure applications where ambient temperatures exceed standard commercial or industrial grades.
Does the LTC6910-3HTS8#TRPBF support single-supply operation?
Yes, the LTC6910-3HTS8#TRPBF supports true single-supply operation via its internally generated half-supply reference at the AGND pin. When powered from a single 2.7V–10.5V supply, AGND provides a stable mid-rail bias point, enabling rail-to-rail input operation at unity gain and eliminating the need for external resistive dividers or charge pumps.
What gain settings does the LTC6910-3HTS8#TRPBF provide?
The LTC6910-3HTS8#TRPBF provides eight discrete inverting gain settings: 0 (mute), 1, 2, 3, 4, 5, 6, and 7 V/V. These are selected using the 3-bit parallel digital inputs G2, G1, and G0. Unlike the LTC6910-1 and LTC6910-2 variants, the LTC6910-3HTS8#TRPBF does not support gains above 7 V/V or logarithmic step sizes.
How is the AGND pin used in the LTC6910-3HTS8#TRPBF?
The AGND pin of the LTC6910-3HTS8#TRPBF delivers an internally generated half-supply voltage (e.g., 2.5V at VS = 5V) with a nominal 5kΩ source impedance. It serves as the common-mode reference for the amplifier's input and output stages. AGND may also be driven externally by a system-level analog ground reference near mid-supply, overriding the internal divider.
What is the gain-bandwidth product of the LTC6910-3HTS8#TRPBF?
The LTC6910-3HTS8#TRPBF has a gain-bandwidth product of 11 MHz when configured for G = 7. At lower gains, bandwidth increases inversely (e.g., ~77 MHz at G = 1), but small-signal bandwidth is limited by slew rate and output loading. The 11 MHz specification ensures ≥1.5 MHz closed-loop bandwidth at G = 7 with 10kΩ load and 100pF capacitance.
LTC6910-3HTS8#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 ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-23-8
LTC6910-3HTS8#TRPBF FAQ
1.How can I place an order for LTC6910-3HTS8#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6910-3HTS8#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 LTC6910-3HTS8#TRPBF reliable?
The price and inventory of LTC6910-3HTS8#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6910-3HTS8#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC6910-3HTS8#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6910-3HTS8#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6910-3HTS8#TRPBF?
LTC6910-3HTS8#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6910-3HTS8#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 LTC6910-3HTS8#TRPBF?
For technical support, including LTC6910-3HTS8#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6910-3HTS8#TRPBF requirements.
6.How does Aetrix verify that LTC6910-3HTS8#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC6910-3HTS8#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 LTC6910-3HTS8#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC6910-3HTS8#TRPBF?
All LTC6910-3HTS8#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6910-3HTS8#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 LTC6910-3HTS8#TRPBF part is unused and in its original packaging.
Return procedure for LTC6910-3HTS8#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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