component
PGA205AU
Public Made by Adomby adom
Texas Instruments Programmable / Variable Gain Amplifiers (PGA/VGA), SOIC-16-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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"digikey": "296-45014-5-ND",
"mouser": "595-PGA205AU"
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"checked_at": "2026-10-08T03:33:00Z",
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{
"number": "1",
"name": "VO1",
"type": "output",
"description": "Pin labeled VO1 in the pin configuration and block diagram; the datasheet gives no electrical limits or functional description for this pin."
},
{
"number": "2",
"name": "NC",
"type": "unconnected",
"description": "No internal connection."
},
{
"number": "3",
"name": "NC",
"type": "unconnected",
"description": "No internal connection."
},
{
"number": "4",
"name": "V-IN",
"type": "power_in",
"description": "Inverting analog input; each input is individually protected for up to ±40V, and an input bias current return path must be provided."
},
{
"number": "5",
"name": "V+IN",
"type": "power_in",
"description": "Non-inverting analog input; each input is individually protected for up to ±40V, and an input bias current return path must be provided."
},
{
"number": "6",
"name": "VOS Adjust",
"type": "passive",
"description": "Input-stage offset trim terminal, used with the optional trim circuit of Figure 3 to adjust only the input-stage offset (about ±250µV trim range), not system or sensor offset."
},
{
"number": "7",
"name": "VOS Adjust",
"type": "passive",
"description": "Input-stage offset trim terminal, used with the optional trim circuit of Figure 3 to adjust only the input-stage offset (about ±250µV trim range), not system or sensor offset."
},
{
"number": "8",
"name": "V–",
"type": "power_in",
"description": "Negative power supply; the device operates from ±4.5V to ±18V, with a absolute maximum supply of ±18V."
},
{
"number": "9",
"name": "VO2",
"type": "output",
"description": "Pin labeled VO2 in the pin configuration and block diagram; the datasheet gives no electrical limits or functional description for this pin."
},
{
"number": "10",
"name": "Ref",
"type": "input",
"description": "Output reference terminal, normally grounded, that must be a low-impedance connection because a 5Ω series resistance degrades CMR to about 80dB at G=1."
},
{
"number": "11",
"name": "VO",
"type": "output",
"description": "Amplifier output, which must be connected to Feedback (pin 12) for proper operation; the output is short-circuit protected to ground (continuous rating)."
},
{
"number": "12",
"name": "Feedback",
"type": "input",
"description": "Output feedback connection that must be tied to output pin 11 for proper operation, and can be used to sense the output voltage directly at the load."
},
{
"number": "13",
"name": "V+",
"type": "power_in",
"description": "Positive power supply; the device operates from ±4.5V to ±18V, with an absolute maximum supply of ±18V."
},
{
"number": "14",
"name": "Dig. Ground",
"type": "power_in",
"description": "Digital ground reference for the A0/A1 logic inputs, which may be connected to any potential from V- up to 4V below V+ and is normally connected to ground."
},
{
"number": "15",
"name": "A0",
"type": "input",
"description": "Gain-select logic input (TTL/CMOS compatible) where a logic 1 is defined as more than 2V above digital ground (pin 14), and inputs are not latched."
},
{
"number": "16",
"name": "A1",
"type": "input",
"description": "Gain-select logic input (TTL/CMOS compatible) where a logic 1 is defined as more than 2V above digital ground (pin 14), and inputs are not latched."
}
],
"provenance": {
"extractor": "extract_pins 0.3",
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"guard_notes": [
"extractor flagged: The datasheet does not describe the function or electrical limits of pins VO1 (pin 1) and VO2 (pin 9; The datasheet's pin configuration (page 5) lists pins 2 and 3 as NC (no internal connection). They a; The pin-to-number mapping was reconstructed from the top-view pin configuration on page 5 and cross-",
"1/16 pins cited to the wrong page (name found elsewhere): ['5:V+IN@p2']"
],
"pages_sent": 20,
"cost_usd": 0.1107,
"at": "2026-10-08T03:32:43"
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"metadata": {
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"Package": "SOIC-16-300mil",
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"Pins": "16"
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