component
LMH6505MA
Public Unreviewedby Ray
Texas Instruments Programmable / Variable Gain Amplifiers (PGA/VGA), SOIC-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownLMH6505MA
Texas Instruments · Programmable / Variable Gain Amplifiers (PGA/VGA) · SOIC-8
LMH6505MA from Texas Instruments, in a SOIC-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | VG | input | Gain control input. Linear-in-dB gain control voltage; typical range 0V to +2V referenced to the ground pin. High input impedance (~25 MΩ, 2.8 pF). Sets the attenuation from AVMAX down to ~-85 dB. |
| 2 | VIN | input | Signal input to the variable gain stage. High input impedance (~7 MΩ, 2.8 pF). Bias current typ -0.6 μA. Input voltage range ±0.6 V with RG = 100 Ω. |
| 3 | RG | passive | Gain-setting resistor connection. External RG (typ 100 Ω) between this pin and ground sets the maximum gain (AVMAX) together with RF. Nominal current ±5-6 mA. |
| 4 | GND | power_in | Ground / low-Z reference pin for the VG control voltage. Tie to system ground for split-supply operation, or to a virtual half-supply for single-supply operation. |
| 5 | V- | power_in | Negative supply rail for the output op amp / device (typ -5 V for ±5 V operation). Total supply (V+ - V-) 7 V to 12 V, 12.6 V absolute maximum. No-load quiescent current ~11 mA. |
| 6 | VOUT | output | Amplifier output. Low output impedance (~0.12 Ω DC), ±2.1 V into RL = 100 Ω, up to ±60 mA linear output current, slew rate 1500 V/μs (inverting). |
| 7 | I- | input | Inverting (current-feedback) input of the output op amp. Feedback resistor RF (typ 1 kΩ) is connected between VOUT and this pin; together with RG this sets AVMAX (~9.4 V/V typical). |
| 8 | V+ | power_in | Positive supply rail (typ +5 V for ±5 V operation). Total supply (V+ - V-) 7 V to 12 V, 12.6 V absolute maximum. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Amplifiers/Comparators |
| Pins | 8 |
Ordering variants
Same part, different packaging or reel option.
LMH6505MALMH6505MAXLMH6505MAMMLMH6505MAMME
CAD (KiCad official)
- Symbol:
LMH6505MA - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (34 pp, sha256
0a44f7599bf1d097, retrieved 2026-08-17, tier: lcsc) - Extractor:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).