component
HT324ARQZ
Public Made by Adomby adom
HTCSEMI Operational Amplifier, QFN16(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
HT324ARQZ
HTCSEMI · Operational Amplifier · QFN16(3x3)
HT324ARQZ from HTCSEMI, in a QFN16(3x3). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | +INA | input | Non-inverting input of amplifier A; input common mode range is 0 V to VCC −1.7 V and inputs may go to +32 V without damage. |
| 2 | +VS | power_in | Positive supply, 3.0 V to 32 V single supply (or ±1.5 V to ±16 V split supplies). |
| 3 | +INB | input | Non-inverting input of amplifier B; input common mode range is 0 V to VCC −1.7 V and inputs may go to +32 V without damage. |
| 4 | -INB | input | Inverting input of amplifier B; input common mode range is 0 V to VCC −1.7 V and inputs may go to +32 V without damage. |
| 5 | OUTB | output | Output of amplifier B; short-circuit protected, swing includes the negative supply. |
| 6 | NC | unconnected | No connection. |
| 7 | NC | unconnected | No connection. |
| 8 | OUTC | output | Output of amplifier C; short-circuit protected, swing includes the negative supply. |
| 9 | -INC | input | Inverting input of amplifier C; input common mode range is 0 V to VCC −1.7 V and inputs may go to +32 V without damage. |
| 10 | +INC | input | Non-inverting input of amplifier C; input common mode range is 0 V to VCC −1.7 V and inputs may go to +32 V without damage. |
| 11 | -VS | power_in | Negative supply or ground (VEE/GND) for single supply operation; split supplies down to −16 V. |
| 12 | +IND | input | Non-inverting input of amplifier D; input common mode range is 0 V to VCC −1.7 V and inputs may go to +32 V without damage. |
| 13 | -IND | input | Inverting input of amplifier D; input common mode range is 0 V to VCC −1.7 V and inputs may go to +32 V without damage. |
| 14 | OUTD | output | Output of amplifier D; short-circuit protected, swing includes the negative supply. |
| 15 | OUTA | output | Output of amplifier A; short-circuit protected, swing includes the negative supply. |
| 16 | -INA | input | Inverting input of amplifier A; input common mode range is 0 V to VCC −1.7 V and inputs may go to +32 V without damage. |
| 17 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HTCSEMI |
| Package | QFN16(3x3) |
| Category | Amplifiers/Comparators |
| Pins | 17 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Input Offset Voltage (TA = 25 C) | VIO | 2 | 3 | mV | VCC = 5.0 V to 30 V, VICR = 0 V to VCC -1.7 V, VO = 1.4 V, RS = 0, TA = 25 C | 3 | |
| Input Offset Voltage (TA = Thigh) | VIO | 5 | mV | VCC = 5.0 V to 30 V, VICR = 0 V to VCC -1.7 V, VO = 1.4 V, RS = 0, TA = Thigh (Note 4) | 3 | ||
| Input Offset Voltage (TA = Tlow) | VIO | 5 | mV | VCC = 5.0 V to 30 V, VICR = 0 V to VCC -1.7 V, VO = 1.4 V, RS = 0, TA = Tlow (Note 4) | 3 | ||
| Average Temperature Coefficient of Input Offset Voltage | VIO/T | 7 | 30 | V/°C | TA = Thigh to Tlow (Notes 4 and 6) | 3 | |
| Input Offset Current | IIO | 5 | 30 | nA | 3 | ||
| Input Offset Current (TA = Thigh to Tlow) | IIO | 75 | nA | TA = Thigh to Tlow (Note 4) | 3 | ||
| Average Temperature Coefficient of Input Offset Current | IIO/T | 10 | 300 | pA/°C | TA = Thigh to Tlow (Notes 4 and 6) | 3 | |
| Input Bias Current | IIB | -45 | -100 | nA | 3 | ||
| Input Bias Current (TA = Thigh to Tlow) | IIB | -200 | nA | TA = Thigh to Tlow (Note 4) | 3 | ||
| Input Common Mode Voltage Range (TA = 25 C) | VICR | 0 | 28.3 | V | VCC = 30 V, TA = +25 C | 3 | |
| Input Common Mode Voltage Range (TA = Thigh to Tlow) | VICR | 0 | 28 | V | VCC = 30 V, TA = Thigh to Tlow (Note 4) | 3 | |
| Large Signal Open Loop Voltage Gain | AVOL | 25 | 100 | V/mV | RL = 2.0 k, VCC = 15 V, for Large VO Swing | 3 | |
| Large Signal Open Loop Voltage Gain (TA = Thigh to Tlow) | AVOL | 15 | V/mV | RL = 2.0 k, VCC = 15 V, for Large VO Swing, TA = Thigh to Tlow (Note 4) | 3 | ||
| Common Mode Rejection | CMR | 65 | 70 | dB | RS ≤ 10 k | 3 | |
| Power Supply Rejection | PSR | 65 | 100 | dB | 3 | ||
| Output Voltage High Limit (VCC = 5.0 V) | VOH | 3.3 | 3.5 | V | VCC = 5.0 V, RL = 2.0 k, TA = 25 C | 4 | |
| Output Voltage High Limit (VCC = 30 V, RL = 2.0 k) | VOH | 26 | V | VCC = 30 V, RL = 2.0 k, TA = Thigh to Tlow (Note 7) | 4 | ||
| Output Voltage High Limit (VCC = 30 V, RL = 10 k) | VOH | 27 | 28 | V | VCC = 30 V, RL = 10 k, TA = Thigh to Tlow (Note 7) | 4 | |
| Output Voltage Low Limit | VOL | 5 | 20 | mV | VCC = 5.0 V, RL = 10 k, TA = Thigh to Tlow (Note 7) | 4 | |
| Output Source Current (TA = 25 C) | IO+ | 20 | 40 | mA | VID = +1.0 V, VCC = 15 V, TA = 25 C | 4 | |
| Output Source Current (TA = Thigh to Tlow) | IO+ | 10 | 20 | mA | VID = +1.0 V, VCC = 15 V, TA = Thigh to Tlow (Note 7) | 4 | |
| Output Sink Current (TA = 25 C) | IO- | 10 | 20 | mA | VID = -1.0 V, VCC = 15 V, TA = 25 C | 4 | |
| Output Sink Current (TA = Thigh to Tlow) | IO- | 5 | 8 | mA | VID = -1.0 V, VCC = 15 V, TA = Thigh to Tlow (Note 7) | 4 | |
| Output Sink Current (VO = 200 mV) | IO- | 12 | 50 | A | VID = -1.0 V, VO = 200 mV, TA = 25 C | 4 | |
| Output Short Circuit to Ground | ISC | 40 | 60 | mA | 4 | ||
| Power Supply Current (VCC = 30 V) | ICC | 1.4 | 3 | mA | TA = Thigh to Tlow (Note 7); VCC = 30 V, VO = 0 V, RL = ∞ | 4 | |
| Power Supply Current (VCC = 5.0 V) | ICC | 0.7 | 1.2 | mA | TA = Thigh to Tlow (Note 7); VCC = 5.0 V, VO = 0 V, RL = ∞ | 4 | |
| Single Supply Voltage | VCC | 32 | Vdc | 2 | |||
| Split Supplies Voltage | VCC, VEE | -16 | 16 | Vdc | 2 | ||
| Input Differential Voltage Range | VIDR | -32 | 32 | Vdc | Note 1: split power supplies | 2 | |
| Input Common Mode Voltage Range | VICR | -0.3 | 32 | Vdc | 2 | ||
| Junction Temperature | TJ | 150 | °C | 2 | |||
| Storage Temperature Range | Tstg | -65 | 150 | °C | 2 | ||
| Operating Ambient Temperature Range | TA | 0 | 70 | °C | HT324A | 2 | |
| ESD Protection, Human Body Model | HBM | 200 | V | HT324A, ESD protection at any pin, Human Body Model | 2 | ||
| ESD Protection, Machine Model | MM | 100 | V | HT324A, ESD protection at any pin, Machine Model | 2 | ||
| Single Supply Operating Voltage | VCC | 3 | 32 | V | Single supply operation (from Features list) | 1 |
CAD (KiCad official)
- Symbol:
HT324ARQZ - Footprint:
Package_DFN_QFN:QFN-16-1EP_3x3mm_P0.5mm_EP1.7x1.7mm - 3D model: QFN16(3x3) (KiCad packages3D, STEP)
- 3D model files:
ht324arqz-etched.step/ht324arqz-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ht324arqz.step/ht324arqz.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HTCSEMI datasheet (13 pp, sha256
4e10227bdbce08b5, retrieved 2026-10-18, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).
# HT324ARQZ
**HTCSEMI** · Operational Amplifier · QFN16(3x3)
HT324ARQZ from HTCSEMI, in a QFN16(3x3). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
## Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | +INA | input | Non-inverting input of amplifier A; input common mode range is 0 V to VCC −1.7 V and inputs may go to +32 V without damage. |
| 2 | +VS | power_in | Positive supply, 3.0 V to 32 V single supply (or ±1.5 V to ±16 V split supplies). |
| 3 | +INB | input | Non-inverting input of amplifier B; input common mode range is 0 V to VCC −1.7 V and inputs may go to +32 V without damage. |
| 4 | -INB | input | Inverting input of amplifier B; input common mode range is 0 V to VCC −1.7 V and inputs may go to +32 V without damage. |
| 5 | OUTB | output | Output of amplifier B; short-circuit protected, swing includes the negative supply. |
| 6 | NC | unconnected | No connection. |
| 7 | NC | unconnected | No connection. |
| 8 | OUTC | output | Output of amplifier C; short-circuit protected, swing includes the negative supply. |
| 9 | -INC | input | Inverting input of amplifier C; input common mode range is 0 V to VCC −1.7 V and inputs may go to +32 V without damage. |
| 10 | +INC | input | Non-inverting input of amplifier C; input common mode range is 0 V to VCC −1.7 V and inputs may go to +32 V without damage. |
| 11 | -VS | power_in | Negative supply or ground (VEE/GND) for single supply operation; split supplies down to −16 V. |
| 12 | +IND | input | Non-inverting input of amplifier D; input common mode range is 0 V to VCC −1.7 V and inputs may go to +32 V without damage. |
| 13 | -IND | input | Inverting input of amplifier D; input common mode range is 0 V to VCC −1.7 V and inputs may go to +32 V without damage. |
| 14 | OUTD | output | Output of amplifier D; short-circuit protected, swing includes the negative supply. |
| 15 | OUTA | output | Output of amplifier A; short-circuit protected, swing includes the negative supply. |
| 16 | -INA | input | Inverting input of amplifier A; input common mode range is 0 V to VCC −1.7 V and inputs may go to +32 V without damage. |
| 17 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HTCSEMI |
| Package | QFN16(3x3) |
| Category | Amplifiers/Comparators |
| Pins | 17 |
## Electrical characteristics
Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Input Offset Voltage (TA = 25 C) | VIO | | 2 | 3 | mV | VCC = 5.0 V to 30 V, VICR = 0 V to VCC -1.7 V, VO = 1.4 V, RS = 0, TA = 25 C | 3 |
| Input Offset Voltage (TA = Thigh) | VIO | | | 5 | mV | VCC = 5.0 V to 30 V, VICR = 0 V to VCC -1.7 V, VO = 1.4 V, RS = 0, TA = Thigh (Note 4) | 3 |
| Input Offset Voltage (TA = Tlow) | VIO | | | 5 | mV | VCC = 5.0 V to 30 V, VICR = 0 V to VCC -1.7 V, VO = 1.4 V, RS = 0, TA = Tlow (Note 4) | 3 |
| Average Temperature Coefficient of Input Offset Voltage | VIO/T | | 7 | 30 | V/°C | TA = Thigh to Tlow (Notes 4 and 6) | 3 |
| Input Offset Current | IIO | | 5 | 30 | nA | | 3 |
| Input Offset Current (TA = Thigh to Tlow) | IIO | | | 75 | nA | TA = Thigh to Tlow (Note 4) | 3 |
| Average Temperature Coefficient of Input Offset Current | IIO/T | | 10 | 300 | pA/°C | TA = Thigh to Tlow (Notes 4 and 6) | 3 |
| Input Bias Current | IIB | | -45 | -100 | nA | | 3 |
| Input Bias Current (TA = Thigh to Tlow) | IIB | | | -200 | nA | TA = Thigh to Tlow (Note 4) | 3 |
| Input Common Mode Voltage Range (TA = 25 C) | VICR | 0 | | 28.3 | V | VCC = 30 V, TA = +25 C | 3 |
| Input Common Mode Voltage Range (TA = Thigh to Tlow) | VICR | 0 | | 28 | V | VCC = 30 V, TA = Thigh to Tlow (Note 4) | 3 |
| Large Signal Open Loop Voltage Gain | AVOL | 25 | 100 | | V/mV | RL = 2.0 k, VCC = 15 V, for Large VO Swing | 3 |
| Large Signal Open Loop Voltage Gain (TA = Thigh to Tlow) | AVOL | 15 | | | V/mV | RL = 2.0 k, VCC = 15 V, for Large VO Swing, TA = Thigh to Tlow (Note 4) | 3 |
| Common Mode Rejection | CMR | 65 | 70 | | dB | RS ≤ 10 k | 3 |
| Power Supply Rejection | PSR | 65 | 100 | | dB | | 3 |
| Output Voltage High Limit (VCC = 5.0 V) | VOH | 3.3 | 3.5 | | V | VCC = 5.0 V, RL = 2.0 k, TA = 25 C | 4 |
| Output Voltage High Limit (VCC = 30 V, RL = 2.0 k) | VOH | 26 | | | V | VCC = 30 V, RL = 2.0 k, TA = Thigh to Tlow (Note 7) | 4 |
| Output Voltage High Limit (VCC = 30 V, RL = 10 k) | VOH | 27 | 28 | | V | VCC = 30 V, RL = 10 k, TA = Thigh to Tlow (Note 7) | 4 |
| Output Voltage Low Limit | VOL | | 5 | 20 | mV | VCC = 5.0 V, RL = 10 k, TA = Thigh to Tlow (Note 7) | 4 |
| Output Source Current (TA = 25 C) | IO+ | 20 | 40 | | mA | VID = +1.0 V, VCC = 15 V, TA = 25 C | 4 |
| Output Source Current (TA = Thigh to Tlow) | IO+ | 10 | 20 | | mA | VID = +1.0 V, VCC = 15 V, TA = Thigh to Tlow (Note 7) | 4 |
| Output Sink Current (TA = 25 C) | IO- | 10 | 20 | | mA | VID = -1.0 V, VCC = 15 V, TA = 25 C | 4 |
| Output Sink Current (TA = Thigh to Tlow) | IO- | 5 | 8 | | mA | VID = -1.0 V, VCC = 15 V, TA = Thigh to Tlow (Note 7) | 4 |
| Output Sink Current (VO = 200 mV) | IO- | 12 | 50 | | A | VID = -1.0 V, VO = 200 mV, TA = 25 C | 4 |
| Output Short Circuit to Ground | ISC | | 40 | 60 | mA | | 4 |
| Power Supply Current (VCC = 30 V) | ICC | | 1.4 | 3 | mA | TA = Thigh to Tlow (Note 7); VCC = 30 V, VO = 0 V, RL = ∞ | 4 |
| Power Supply Current (VCC = 5.0 V) | ICC | | 0.7 | 1.2 | mA | TA = Thigh to Tlow (Note 7); VCC = 5.0 V, VO = 0 V, RL = ∞ | 4 |
| Single Supply Voltage | VCC | | | 32 | Vdc | | 2 |
| Split Supplies Voltage | VCC, VEE | -16 | | 16 | Vdc | | 2 |
| Input Differential Voltage Range | VIDR | -32 | | 32 | Vdc | Note 1: split power supplies | 2 |
| Input Common Mode Voltage Range | VICR | -0.3 | | 32 | Vdc | | 2 |
| Junction Temperature | TJ | | | 150 | °C | | 2 |
| Storage Temperature Range | Tstg | -65 | | 150 | °C | | 2 |
| Operating Ambient Temperature Range | TA | 0 | | 70 | °C | HT324A | 2 |
| ESD Protection, Human Body Model | HBM | | | 200 | V | HT324A, ESD protection at any pin, Human Body Model | 2 |
| ESD Protection, Machine Model | MM | | | 100 | V | HT324A, ESD protection at any pin, Machine Model | 2 |
| Single Supply Operating Voltage | VCC | 3 | | 32 | V | Single supply operation (from Features list) | 1 |
## CAD (KiCad official)
- Symbol: `HT324ARQZ`
- Footprint: `Package_DFN_QFN:QFN-16-1EP_3x3mm_P0.5mm_EP1.7x1.7mm`
- 3D model: QFN16(3x3) (KiCad packages3D, STEP)
- 3D model files: `ht324arqz-etched.step` / `ht324arqz-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ht324arqz.step` / `ht324arqz.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [HTCSEMI datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590904677137526784) (13 pp, sha256 `4e10227bdbce08b5`, retrieved 2026-10-18, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).
[Datasheet PDF](docs/ht324arqz-datasheet.pdf)