component
MAX40109IATP+
Public Made by Adomby adom
ANALOG DEVICES INC Global Sourcing Parts, TQFN-20-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
MAX40109IATP+
ANALOG DEVICES INC · Global Sourcing Parts · TQFN-20-EP(4x4)
MAX40109IATP+ from ANALOG DEVICES INC, in a TQFN-20-EP(4x4). 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 | REFIN | input | Input reference and bypass capacitor (100nF) for the internal reference; a Config Register bit selects external or internal voltage reference, abs max -0.3V to +2V. |
| 2 | INP+ | input | Non-inverting pressure sensor input; up to 10nF may be connected between INP+ and INP-. |
| 3 | NC | unconnected | Do not connect. |
| 4 | INP- | input | Inverting pressure sensor input; up to 10nF may be connected between INP+ and INP-. |
| 5 | AGND | power_in | Analog ground. |
| 6 | DRV | output | Sensor bridge drive (current or voltage), also used to measure bridge temperature as a voltage; abs max -0.3V to +6V. |
| 7 | DGND | power_in | Digital ground. |
| 8 | INT | input | Input temperature: connect to either a diode or a thermistor; abs max -0.3V to +6V. |
| 9 | SDA | bidirectional | I2C data line; abs max -0.3V to +6V. |
| 10 | FB+ | input | Output amplifier feedback input, positive; abs max -1.5V to +5V. |
| 11 | FB- | input | Output amplifier feedback input, negative; abs max -0.3V to +6V. |
| 12 | OUT | output | Analog output and PLC serial interface output; abs max -40V to +40V. |
| 13 | NC | unconnected | Do not connect. |
| 14 | DQ | bidirectional | 1-Wire serial input/output that must be held at logic high when idle; abs max -1.5V to +6V. |
| 15 | VDD2V | power_out | Internal 1.8V LDO output; bypass with a 220nF capacitor. |
| 16 | SCL | input | I2C clock input; abs max -0.3V to +6V. |
| 17 | VDD5V | power_out | Internal 5V LDO output; bypass with a 220nF capacitor. |
| 18 | ALERT | output | Active-low alert interrupt output; see ALERT Mode section for functionality. |
| 19 | VDDHV | power_in | Main positive supply and PLC serial interface input, 3V to 36V; suggested bypass 10nF to 100nF in voltage output mode, maximum 10nF in current output mode. |
| 20 | NC | unconnected | Do not connect. |
| 21 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | ANALOG DEVICES INC |
| Package | TQFN-20-EP(4x4) |
| Category | Global Sourcing Parts |
| Pins | 21 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Supply Voltage | VDDHV | 3 | 36 | V | Guaranteed by PSRR, -40°C < TA < +125°C | 10 | |
| Supply Current | IDD | 2 | 2.57 | mA | 11 | ||
| Low-Power Mode Supply Current | ISHDN | 250 | μA | -40ºC ≤ TA ≤ +125ºC | 11 | ||
| Input Offset Voltage (G=15, 0.6V<VCM<1.7V) | VOS | 180 | 850 | µV | G = 15V/V, zero-pressure offset compensation disabled, 0.6V < VCM < 1.7V | 7 | |
| Input Offset Voltage (G=15, 1.7V<VCM<2.8V) | VOS | 440 | 2000 | µV | G = 15V/V, zero-pressure offset compensation disabled, 1.7V < VCM < 2.8V | 7 | |
| Input Offset Voltage (G=144) | VOS | 76 | 450 | µV | G = 144V/V, zero-pressure offset compensation disabled, 0.6V < VCM < 2.8V | 7 | |
| Input Offset Drift (VCM>1.7V) | TCVOS | 0.062 | 1.6 | μV/°C | VCM > 1.7V | 7 | |
| Input Offset Drift (VCM<1.7V) | TCVOS | 0.018 | 0.8 | μV/°C | VCM < 1.7V | 7 | |
| Input Bias Current | IB | 60 | 400 | pA | TA = +25°C | 7 | |
| Input Bias Current (hot) | IB | 3860 | pA | -40°C ≤ TA ≤ +125°C | 7 | ||
| Input Offset Current | IOS | 9.2 | 400 | pA | 7 | ||
| Input Common Mode Range | VCM | 0.6 | 2.8 | V | Zero-pressure offset compensation disabled, VDDHV ≥ 4.4V | 7 | |
| Input Common Mode Range | VCM | 0.6 | 2.6 | V | Zero-pressure offset compensation disabled, 3.8V ≤ VDDHV ≤ 4.4V | 7 | |
| Gain Selection Settling Time | 10 | ms | 7 | ||||
| Gain Error (G=15) | GE | 0.15 | 0.9 | % | G = 15V/V | 8 | |
| Gain Error (G=144) | GE | 0.45 | 1.4 | % | G = 144V/V | 8 | |
| Gain Error Temperature Coefficient (G=15) | TCGE | 4 | ppm/ºC | G = 15V/V | 8 | ||
| Gain Error Temperature Coefficient (G=144) | TCGE | 9 | ppm/ºC | G = 144V/V | 8 | ||
| Offset Range | 80 | 93 | mV/V | 8 | |||
| Temp Channel Input Common Mode Range | VCM | 0.25 | 1.6 | V | Guaranteed by CMRR parameter | 8 | |
| Temp Channel Input Offset Voltage | VOS | 50 | 2000 | µV | 8 | ||
| Temp Channel Gain Error | GE | -2.5 | 2.5 | % | Gain = 10V/V | 8 | |
| Diagnostic Voltage Threshold Accuracy (0-90% VDD5V) | -3 | 3 | LSB | From 0% to 90% of VDD5V | 9 | ||
| Voltage Source Range Accuracy | ΔVDRV | 3.5 | % | IDRV = 0mA to 2mA | 9 | ||
| Current Source Range Accuracy | ΔIDRV | 5 | % | VDRV = 0V to 4V | 9 | ||
| Voltage Range at Bridge Top | VDRV | 1.8 | 4.2 | V | VDDHV ≥ 4.65V, zero-pressure compensation offset enabled | 10 | |
| Input Referred Residual Voltage | VRES | -3 | 3 | mV | Zero-pressure compensation offset = FS/4, Input PGA Gain = 15 | 10 | |
| Reference Voltage | VREF | 1.25 | V | 10 | |||
| Internal Reference Voltage Temp-Co | VREFTC | 15 | ppm/ºC | 10 | |||
| Output Voltage High | VOH | 94 | 160 | mV | VDD5V - VOUT, RL= 10KΩ to GND | 10 | |
| Output Voltage Low | VOL | 3 | 15 | mV | VOUT - GND, RL = 10KΩ to GND | 10 | |
| Internal Digital Supply Voltage | VDD2V | 1.7 | 1.8 | 1.9 | V | 10 | |
| Internal Analog Supply Voltage | VDD5V | 5.05 | 5.28 | 5.5 | V | VDDHV ≥ 6V | 10 |
| Internal Analog Supply LDO Dropout | VDDHV, VDD5V | 121 | 201 | mV | VDDHV = 5V | 10 | |
| Internal Analog Supply LDO Dropout | VDDHV, VDD5V | 121 | 199 | mV | VDDHV = 3V | 10 | |
| Power Supply Rejection Ratio | PSRR | 105 | dB | 6 ≤ VDDHV≤ 36V | 10 | ||
| Power-Up Time (communication ready) | tON | 2 | ms | VDDHV = 0V to 5V, Communication ready | 11 | ||
| Turn-On Time from Low-Power Mode | tONSD | 50 | µs | From Low-Power Mode (through I2C) | 11 | ||
| I2C Input Low Leakage Current | IIL | -1 | 0.005 | 1 | µA | Logic Input to 0V | 11 |
| I2C Output Low Voltage | VOL | 0 | 0.3 | V | IOL = 3mA | 11 | |
| Absolute Max VDDHV to GND | VDDHV | -40 | 40 | V | VDDHV to GND | 6 | |
| Absolute Max OUT to GND | OUT | -40 | 40 | V | OUT to GND | 6 | |
| Absolute Max VDD5V, DRV, FB-, INP+, INP-, INT, SCL, SDA, ALERT | -0.3 | 6 | V | to GND | 6 | ||
| Absolute Max VDD2V, REFIN | -0.3 | 2 | V | to GND | 6 | ||
| Absolute Max FB+ | FB+ | -1.5 | 5 | V | to GND | 6 | |
| Absolute Max DQ | DQ | -1.5 | 6 | V | to GND | 6 | |
| Continuous Current into any I/O Pin | 10 | mA | 6 | ||||
| Continuous Power Dissipation TQFN single layer | 1666.7 | mW | TA = +70°C, derate 20.8 mW/°C above +70°C | 6 | |||
| Continuous Power Dissipation TQFN four-layer | 2424.2 | mW | Derate 30.3 mW/°C above +70°C | 6 | |||
| Operating Temperature Range | -40 | 125 | °C | 6 | |||
| Junction Temperature | TJ | 150 | °C | 6 | |||
| Thermal Resistance Junction to Ambient, single layer | θJA | 48 | °C/W | TQFN, single layer board | 6 | ||
| Thermal Resistance Junction to Case, single layer | θJC | 2 | °C/W | TQFN, single layer board | 6 | ||
| Thermal Resistance Junction to Ambient, four layer | θJA | 33 | °C/W | TQFN, four layer board | 6 | ||
| Thermal Resistance Junction to Case, four layer | θJC | 2 | °C/W | TQFN, four layer board | 6 |
CAD (KiCad official)
- Symbol:
MAX40109IATP+ - Footprint:
Package_DFN_QFN:QFN-20-1EP_4x4mm_P0.5mm_EP2.5x2.5mm - 3D model: TQFN-20-EP(4x4) (KiCad packages3D, STEP)
- 3D model files:
max40109iatp-etched.step/max40109iatp-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);max40109iatp.step/max40109iatp.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: ANALOG DEVICES INC datasheet (61 pp, sha256
7e41f73f92faaa17, retrieved 2026-10-31, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text), consensusclaude-sonnet-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).
# MAX40109IATP+
**ANALOG DEVICES INC** · Global Sourcing Parts · TQFN-20-EP(4x4)
MAX40109IATP+ from ANALOG DEVICES INC, in a TQFN-20-EP(4x4). 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 | REFIN | input | Input reference and bypass capacitor (100nF) for the internal reference; a Config Register bit selects external or internal voltage reference, abs max -0.3V to +2V. |
| 2 | INP+ | input | Non-inverting pressure sensor input; up to 10nF may be connected between INP+ and INP-. |
| 3 | NC | unconnected | Do not connect. |
| 4 | INP- | input | Inverting pressure sensor input; up to 10nF may be connected between INP+ and INP-. |
| 5 | AGND | power_in | Analog ground. |
| 6 | DRV | output | Sensor bridge drive (current or voltage), also used to measure bridge temperature as a voltage; abs max -0.3V to +6V. |
| 7 | DGND | power_in | Digital ground. |
| 8 | INT | input | Input temperature: connect to either a diode or a thermistor; abs max -0.3V to +6V. |
| 9 | SDA | bidirectional | I2C data line; abs max -0.3V to +6V. |
| 10 | FB+ | input | Output amplifier feedback input, positive; abs max -1.5V to +5V. |
| 11 | FB- | input | Output amplifier feedback input, negative; abs max -0.3V to +6V. |
| 12 | OUT | output | Analog output and PLC serial interface output; abs max -40V to +40V. |
| 13 | NC | unconnected | Do not connect. |
| 14 | DQ | bidirectional | 1-Wire serial input/output that must be held at logic high when idle; abs max -1.5V to +6V. |
| 15 | VDD2V | power_out | Internal 1.8V LDO output; bypass with a 220nF capacitor. |
| 16 | SCL | input | I2C clock input; abs max -0.3V to +6V. |
| 17 | VDD5V | power_out | Internal 5V LDO output; bypass with a 220nF capacitor. |
| 18 | ALERT | output | Active-low alert interrupt output; see ALERT Mode section for functionality. |
| 19 | VDDHV | power_in | Main positive supply and PLC serial interface input, 3V to 36V; suggested bypass 10nF to 100nF in voltage output mode, maximum 10nF in current output mode. |
| 20 | NC | unconnected | Do not connect. |
| 21 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | ANALOG DEVICES INC |
| Package | TQFN-20-EP(4x4) |
| Category | Global Sourcing Parts |
| Pins | 21 |
## Electrical characteristics
Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Supply Voltage | VDDHV | 3 | | 36 | V | Guaranteed by PSRR, -40°C < TA < +125°C | 10 |
| Supply Current | IDD | | 2 | 2.57 | mA | | 11 |
| Low-Power Mode Supply Current | ISHDN | | | 250 | μA | -40ºC ≤ TA ≤ +125ºC | 11 |
| Input Offset Voltage (G=15, 0.6V<VCM<1.7V) | VOS | | 180 | 850 | µV | G = 15V/V, zero-pressure offset compensation disabled, 0.6V < VCM < 1.7V | 7 |
| Input Offset Voltage (G=15, 1.7V<VCM<2.8V) | VOS | | 440 | 2000 | µV | G = 15V/V, zero-pressure offset compensation disabled, 1.7V < VCM < 2.8V | 7 |
| Input Offset Voltage (G=144) | VOS | | 76 | 450 | µV | G = 144V/V, zero-pressure offset compensation disabled, 0.6V < VCM < 2.8V | 7 |
| Input Offset Drift (VCM>1.7V) | TCVOS | | 0.062 | 1.6 | μV/°C | VCM > 1.7V | 7 |
| Input Offset Drift (VCM<1.7V) | TCVOS | | 0.018 | 0.8 | μV/°C | VCM < 1.7V | 7 |
| Input Bias Current | IB | | 60 | 400 | pA | TA = +25°C | 7 |
| Input Bias Current (hot) | IB | | | 3860 | pA | -40°C ≤ TA ≤ +125°C | 7 |
| Input Offset Current | IOS | | 9.2 | 400 | pA | | 7 |
| Input Common Mode Range | VCM | 0.6 | | 2.8 | V | Zero-pressure offset compensation disabled, VDDHV ≥ 4.4V | 7 |
| Input Common Mode Range | VCM | 0.6 | | 2.6 | V | Zero-pressure offset compensation disabled, 3.8V ≤ VDDHV ≤ 4.4V | 7 |
| Gain Selection Settling Time | | | | 10 | ms | | 7 |
| Gain Error (G=15) | GE | | 0.15 | 0.9 | % | G = 15V/V | 8 |
| Gain Error (G=144) | GE | | 0.45 | 1.4 | % | G = 144V/V | 8 |
| Gain Error Temperature Coefficient (G=15) | TCGE | | 4 | | ppm/ºC | G = 15V/V | 8 |
| Gain Error Temperature Coefficient (G=144) | TCGE | | 9 | | ppm/ºC | G = 144V/V | 8 |
| Offset Range | | 80 | | 93 | mV/V | | 8 |
| Temp Channel Input Common Mode Range | VCM | 0.25 | | 1.6 | V | Guaranteed by CMRR parameter | 8 |
| Temp Channel Input Offset Voltage | VOS | | 50 | 2000 | µV | | 8 |
| Temp Channel Gain Error | GE | -2.5 | | 2.5 | % | Gain = 10V/V | 8 |
| Diagnostic Voltage Threshold Accuracy (0-90% VDD5V) | | -3 | | 3 | LSB | From 0% to 90% of VDD5V | 9 |
| Voltage Source Range Accuracy | ΔVDRV | | | 3.5 | % | IDRV = 0mA to 2mA | 9 |
| Current Source Range Accuracy | ΔIDRV | | | 5 | % | VDRV = 0V to 4V | 9 |
| Voltage Range at Bridge Top | VDRV | 1.8 | | 4.2 | V | VDDHV ≥ 4.65V, zero-pressure compensation offset enabled | 10 |
| Input Referred Residual Voltage | VRES | -3 | | 3 | mV | Zero-pressure compensation offset = FS/4, Input PGA Gain = 15 | 10 |
| Reference Voltage | VREF | | 1.25 | | V | | 10 |
| Internal Reference Voltage Temp-Co | VREFTC | | 15 | | ppm/ºC | | 10 |
| Output Voltage High | VOH | | 94 | 160 | mV | VDD5V - VOUT, RL= 10KΩ to GND | 10 |
| Output Voltage Low | VOL | | 3 | 15 | mV | VOUT - GND, RL = 10KΩ to GND | 10 |
| Internal Digital Supply Voltage | VDD2V | 1.7 | 1.8 | 1.9 | V | | 10 |
| Internal Analog Supply Voltage | VDD5V | 5.05 | 5.28 | 5.5 | V | VDDHV ≥ 6V | 10 |
| Internal Analog Supply LDO Dropout | VDDHV, VDD5V | | 121 | 201 | mV | VDDHV = 5V | 10 |
| Internal Analog Supply LDO Dropout | VDDHV, VDD5V | | 121 | 199 | mV | VDDHV = 3V | 10 |
| Power Supply Rejection Ratio | PSRR | 105 | | | dB | 6 ≤ VDDHV≤ 36V | 10 |
| Power-Up Time (communication ready) | tON | | 2 | | ms | VDDHV = 0V to 5V, Communication ready | 11 |
| Turn-On Time from Low-Power Mode | tONSD | | | 50 | µs | From Low-Power Mode (through I2C) | 11 |
| I2C Input Low Leakage Current | IIL | -1 | 0.005 | 1 | µA | Logic Input to 0V | 11 |
| I2C Output Low Voltage | VOL | 0 | | 0.3 | V | IOL = 3mA | 11 |
| Absolute Max VDDHV to GND | VDDHV | -40 | | 40 | V | VDDHV to GND | 6 |
| Absolute Max OUT to GND | OUT | -40 | | 40 | V | OUT to GND | 6 |
| Absolute Max VDD5V, DRV, FB-, INP+, INP-, INT, SCL, SDA, ALERT | | -0.3 | | 6 | V | to GND | 6 |
| Absolute Max VDD2V, REFIN | | -0.3 | | 2 | V | to GND | 6 |
| Absolute Max FB+ | FB+ | -1.5 | | 5 | V | to GND | 6 |
| Absolute Max DQ | DQ | -1.5 | | 6 | V | to GND | 6 |
| Continuous Current into any I/O Pin | | | | 10 | mA | | 6 |
| Continuous Power Dissipation TQFN single layer | | | | 1666.7 | mW | TA = +70°C, derate 20.8 mW/°C above +70°C | 6 |
| Continuous Power Dissipation TQFN four-layer | | | | 2424.2 | mW | Derate 30.3 mW/°C above +70°C | 6 |
| Operating Temperature Range | | -40 | | 125 | °C | | 6 |
| Junction Temperature | TJ | | | 150 | °C | | 6 |
| Thermal Resistance Junction to Ambient, single layer | θJA | | 48 | | °C/W | TQFN, single layer board | 6 |
| Thermal Resistance Junction to Case, single layer | θJC | | 2 | | °C/W | TQFN, single layer board | 6 |
| Thermal Resistance Junction to Ambient, four layer | θJA | | 33 | | °C/W | TQFN, four layer board | 6 |
| Thermal Resistance Junction to Case, four layer | θJC | | 2 | | °C/W | TQFN, four layer board | 6 |
## CAD (KiCad official)
- Symbol: `MAX40109IATP+`
- Footprint: `Package_DFN_QFN:QFN-20-1EP_4x4mm_P0.5mm_EP2.5x2.5mm`
- 3D model: TQFN-20-EP(4x4) (KiCad packages3D, STEP)
- 3D model files: `max40109iatp-etched.step` / `max40109iatp-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `max40109iatp.step` / `max40109iatp.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [ANALOG DEVICES INC datasheet](https://www.analog.com/media/en/technical-documentation/data-sheets/max40109.pdf) (61 pp, sha256 `7e41f73f92faaa17`, retrieved 2026-10-31, tier: manufacturer)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text), consensus `claude-sonnet-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/max40109iatp-datasheet.pdf)