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LTC2802IDE#TRPBF

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Analog Devices RS232 ICs, DFN-12-EP(3x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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LTC2802IDE#TRPBF

Analog Devices · RS232 ICs · DFN-12-EP(3x4)

LTC2802IDE#TRPBF from Analog Devices, in a DFN-12-EP(3x4). 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 RIN input RS-232 receiver input with an internal 5kΩ termination; absolute maximum rating is -25V to 25V.
2 TOUT output RS-232 driver output that is protected so it can be shorted to ground or up to ±15V without damage.
3 VCC power_in Input supply, 1.8V to 5.5V; bypass to GND with a 1µF capacitor.
4 VDD power_out Generated positive supply for the RS-232 driver (7V); connect a 1µF capacitor between VDD and GND.
5 SW passive Switch pin for the DC-DC converter; connect a 10µH inductor between SW and VCC.
6 GND power_in Ground.
7 CAP passive Charge pump capacitor node for the generated negative supply; connect a 220nF capacitor between CAP and SW.
8 PS input Power supply control pin, referenced to VL, that enables the integrated DC-DC converter.
9 MODE input Mode control pin, referenced to VL; see Table 1 of the datasheet for the mode functions.
10 VL power_in Logic supply, 1.8V to 5.5V, for the receiver outputs, driver inputs and control inputs; bypass with a 220nF capacitor to GND if not tied to VCC.
11 TIN input Driver input referenced to VL.
12 ROUT output Receiver output referenced to VL; short-circuit protected to GND/VCC/VL and high impedance in Shutdown mode.
13 VEE power_out Generated negative supply for the RS-232 driver (-6.3V); connect a 1µF capacitor between VEE and GND. This is the backside exposed thermal pad, which must be soldered to the PCB.

Key specifications

Parameter Value
Manufacturer Analog Devices
Package DFN-12-EP(3x4)
Category Interface ICs
Pins 13

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
VCC Supply Current, Receivers Active Mode ICC 1 10 µA Outputs unloaded, Receivers Active Mode 3
VCC Supply Current, Shutdown Mode ICC 1 10 µA Outputs unloaded, Shutdown Mode 3
VL Supply Current, Normal Mode (LTC2801, LTC2802) IL 0.08 0.15 mA Outputs unloaded, Normal Mode (LTC2801, LTC2802) 3
VL Supply Current, Receivers Active Mode IL 15 30 µA Outputs unloaded, Receivers Active Mode 3
VL Supply Current, Shutdown Mode IL 1 10 µA Outputs unloaded, Shutdown Mode 3
Output Voltage Low VOLD -5 -5.7 V RL = 3kΩ, Low 3
Output Voltage High VOHD 5 6.2 V RL = 3kΩ, High 3
Output Short Circuit Current IOSD 35 70 mA VL = VCC = 5.5V; VTOUT = 0V 3
Power-Off Output Leakage Current IPOLD 0.1 10 µA VL = VCC = VDD = VEE = 0V; VTOUT = ±2V 3
Output Leakage Current IOLD 0.1 10 µA Shutdown or Receivers Active or Drivers Disabled Modes, -15V ≤ VTOUT ≤ 15V 3
Input Threshold VIR 0.8 1.5 2.4 V Receivers Active Mode 3
Input Threshold, Input Low VILR 0.8 1.3 V Normal Mode, Input Low 3
Input Threshold, Input High VIHR 1.7 2.5 V Normal Mode, Input High 3
Input Hysteresis VHYSR 0.1 0.4 1 V Normal Mode 3
Output Voltage Low VOLR 0.2 0.4 V Output Low, IROUT = 1mA (Sinking) 3
Input Resistance RIN 3 5 7 kΩ -15V ≤ VRIN ≤ 15V 3
Output Short Circuit Current IOSR 25 50 mA VL = 5.5V; 0V ≤ VROUT ≤ VL 3
Logic Input Voltage Threshold 0.4 V 3
Logic Input Current IIN -1 1 µA 3
VDD/VEE Supply Rise Time 0.2 2 ms Notes 3 and 4 4
Maximum Data Rate 100 kbps LTC2802, LTC2804; RL = 3kΩ, CL = 2.5nF 4
Maximum Data Rate 250 kbps LTC2802, LTC2804; RL = 3kΩ, CL = 1nF 4
Maximum Data Rate 1000 kbps LTC2802, LTC2804; RL = 3kΩ, CL = 250pF 4
Driver Slew Rate SR(D) 4 V/µs LTC2802, LTC2804; VCC = VL = 1.8V, RL = 3kΩ, CL = 2.5nF 4
Driver Slew Rate SR(D) 150 V/µs LTC2802, LTC2804; VCC = VL = 5.5V, RL = 3kΩ, CL = 50pF 4
Driver Propagation Delay tPHLD, tPLHD 0.2 0.5 µs LTC2802, LTC2804; RL = 3kΩ, CL = 50pF 4
Driver Output Enable Time tPZHD, tPZLD 0.6 2 µs PS = VL, MODE = ↑, RL = 3kΩ, CL = 50pF 4
Driver Output Disable Time tPHZD, tPLZD 0.3 2 µs PS = VL, MODE = ↓, RL = 3kΩ, CL = 50pF 4
Receiver Propagation Delay tPHLR, tPLHR 0.2 0.4 µs CL = 150pF 4
Receiver Rise or Fall Time tRR, tFR 60 200 ns CL = 150pF 4
Shutdown to Receiver Output Enable tPZHR, tPZLR 5 15 µs PS = MODE = ↑ or ON/OFF = ↑, RL = 1kΩ, CL = 150pF 4
Receiver Output Disable upon Shutdown tPHZR, tPLZR 0.15 0.3 µs PS = MODE = ↓ or ON/OFF = ↓, RL = 1kΩ, CL = 150pF 4
VCC Supply Voltage VCC 1.8 5.5 V Electrical characteristics test range 3
VL Supply Voltage VL 1.8 5.5 V Electrical characteristics test range 3
Operating Temperature Range (I grade) TA -40 85 °C LTC280XI 2
Input Supply Voltage VCC -0.3 7 V 2
Input Supply Voltage VL -0.3 6.7 V 2
Generated Positive Supply VDD 7.5 V Printed as VCC -0.3V to 7.5V 2
Generated Negative Supply VEE -7.5 0.3 V Printed as 0.3V to -7.5V 2
Supply Difference VDD, VEE 14 V 2
Switch Pin Voltage SW -0.3 V Printed upper limit VDD + 0.3V 2
Charge Pump Pin Voltage CAP 0.3 V Printed as +0.3V to VEE, 0.3V 2
Driver/Mode Input Voltage TIN, T1IN, T2IN, MODE -0.3 7 V 2
Control Input Voltage PS, ON/OFF -0.3 V Printed upper limit VL + 0.3V 2
Receiver Input Voltage RIN, R1IN, R2IN -25 25 V 2
Driver Output Voltage TOUT, T1OUT, T2OUT -15 15 V 2
Receiver Output Voltage ROUT, R1OUT, R2OUT -0.3 V Printed upper limit VL + 0.3V 2
Storage Temperature Range TSTG -65 125 °C 2
Maximum Junction Temperature TJMAX 125 °C 2
Junction-to-Ambient Thermal Resistance θJA 43 °C/W 4 layer board, DE12 DFN package 2
Junction-to-Case Thermal Resistance θJC 4.3 °C/W 4 layer board, DE12 DFN package 2

CAD (KiCad official)

  • Symbol: LTC2802IDE#TRPBF
  • Footprint: Package_DFN_QFN:DFN-12-1EP_3x4mm_P0.5mm_EP1.7x3.3mm
  • 3D model: DFN-12-EP(3x4) (KiCad packages3D, STEP)
  • 3D model files: ltc2802ide-trpbf-etched.step / ltc2802ide-trpbf-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ltc2802ide-trpbf.step / ltc2802ide-trpbf.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Analog Devices datasheet (18 pp, sha256 e9ad4ef1183d2db6, retrieved 2026-10-28, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-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