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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 (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