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Contents

README

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LTC2642ACMS-16#PBF

Analog Devices · Digital To Analog Converters (DAC) · MSOP-10

LTC2642ACMS-16#PBF from Analog Devices, in a MSOP-10. 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 REF input Reference voltage input; apply an external reference between 2V and VDD.
2 CS input Serial interface chip select/load input; when CS is low SCLK shifts data in on DIN, and when CS goes high the 16-bit word is latched and the DAC is updated.
3 SCLK input Serial interface clock input, CMOS and TTL compatible; data on DIN is transferred on the rising edge of SCLK.
4 DIN input Serial interface data input; data is applied to DIN for transfer to the device at the rising edge of SCLK.
5 CLR input Asynchronous clear input; a logic low clears the DAC to midscale on the LTC2642.
6 VOUT output DAC output voltage; the output range is 0V to VREF.
7 INV passive Center tap of the internal scaling resistors; connect to an external amplifier's inverting input in bipolar mode.
8 RFB passive Feedback resistor; connect to an external amplifier's output in bipolar mode, giving a bipolar output range of -VREF to VREF.
9 VDD power_in Supply voltage, set between 2.7V and 5.5V.
10 GND power_in Circuit ground.

Key specifications

Parameter Value
Manufacturer Analog Devices
Package MSOP-10
Category Data Acquisition
Pins 10

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 VDD 2.7 5.5 V 5
Supply Current IDD 120 200 µA Digital Inputs = 0V or VDD 5
Reference Input Range VREF 2 V 4
Reference Input Resistance, unipolar mode (LTC2641) RREF 11 14.8 kΩ Unipolar mode; Note 5 4
Reference Input Resistance, bipolar mode (LTC2642) RREF 8.5 11.4 kΩ Bipolar mode; Note 5 4
Digital Input High Voltage VIH 2.4 V VCC = 3.6V to 5.5V 4
Digital Input High Voltage VIH 2 V VCC = 2.7V to 3.6V 4
Digital Input Low Voltage VIL 0.8 V VCC = 4.5V to 5.5V 5
Digital Input Low Voltage VIL 0.6 V VCC = 2.7V to 4.5V 5
Digital Input Current IIN -1 1 µA VIN = GND to VDD 5
Digital Input Capacitance CIN 3 10 pF Note 6 5
Resolution N 16 Bits LTC2642A-16 column 4
Monotonicity 16 Bits LTC2642A-16 column 4
Differential Nonlinearity DNL -1 1 LSB Note 3 4
Integral Nonlinearity INL -1 1 LSB Note 3 4
Zero Code Offset Error ZSE 2 LSB Code = 0 4
Gain Error GE -5 5 LSB LTC2642A-16 column 4
Bipolar Zero Offset Error BZE -5 5 LSB Bipolar (LTC2642) 4
Power Supply Rejection PSR -1 1 LSB ΔVDD = ±10% 4
Zero Code Tempco ZSTC -0.05 0.05 ppm/°C 4
Gain Error Tempco GETC -0.1 0.1 ppm/°C 4
Bipolar Zero Tempco BZSTC -0.1 0.1 ppm/°C Bipolar (LTC2642) 4
Bipolar Ratio Error (RFB/RINV) -0.015 0.015 % Bipolar (LTC2642); Note 7 4
DAC Output Resistance ROUT -20 20 % Typical; Note 4 5
DAC Output Resistance ROUT 6.2 kΩ Note 4 4
ROUT Tempco ROUT -50 50 ppm/°C Typical 15
DIN Valid to SCLK Setup Time t1 10 ns 5
DIN Valid to SCLK Hold Time t2 0 ns 5
SCLK Pulse Width High t3 9 ns 5
SCLK Pulse Width Low t4 9 ns 5
CS Pulse High Width t5 10 ns 5
LSB SCLK High to CS High t6 8 ns 5
CS Low to SCLK High t7 8 ns 5
CS High to SCLK Positive Edge t8 8 ns 5
CLR Pulse Width Low t9 15 ns 5
SCLK Frequency fSCLK 50 MHz 50% Duty Cycle 5
VDD to GND VDD -0.3 6 V 2
CS, SCLK, DIN, CLR to GND -0.3 V Max is (VDD + 0.3V) or 6V as printed 2
REF, VOUT, INV to GND -0.3 V Max is (VDD + 0.3V) or 6V as printed 2
RFB to INV -6 6 V 2
RFB to GND -6 6 V 2
Maximum Junction Temperature TJMAX 125 °C Note 2 2
Storage Temperature Range -65 150 °C 2
Operating Temperature Range (C grade) TA 0 70 °C LTC2642C grade, commercial 2
Thermal Resistance, junction to ambient (MS MSOP-10) θJA 120 °C/W MS package 2

CAD (KiCad official)

  • Symbol: LTC2642ACMS-16#PBF
  • Footprint: Package_SO:MSOP-10_3x3mm_P0.5mm
  • 3D model: MSOP-10 (KiCad packages3D, STEP)
  • 3D model files: ltc2642acms-16-pbf-etched.step / ltc2642acms-16-pbf-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ltc2642acms-16-pbf.step / ltc2642acms-16-pbf.glb are the bare package body.

Provenance

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

  • Datasheet: Analog Devices datasheet (24 pp, sha256 beb9dfd8807aa419, retrieved 2026-10-20, tier: lcsc)
  • 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