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README

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AD9753ASTZRL

Analog Devices · Digital To Analog Converters (DAC) · LQFP-48(7x7)

AD9753ASTZRL from Analog Devices, in a LQFP-48(7x7). Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 RESET input Internal clock divider reset (CMOS logic input, 0/3.3 V).
2 CLK+ input Differential clock input, positive leg. Can also be driven single-ended. Input range 0-3 V, differential swing 0.5-1.5 V, common-mode 0.75-2.25 V. Minimum 6.25 MHz when PLL is enabled.
3 CLK- input Differential clock input, negative leg. Complements CLK+ when driven differentially.
4 DCOM power_in Digital ground return for DVDD.
5 DVDD power_in Digital supply voltage, 3.0-3.6 V (3.3 V nom). Digital supply current I_DVDD ≈ 3.5 mA typ.
6 PLLLOCK output Phase-locked loop lock indicator output. CMOS output; V_OH ≥ 3.0 V, V_OL ≤ 0.3 V.
7 MSB-P1B11 input Port 1 parallel data input, bit DB11 (MSB). CMOS levels referenced to DVDD/DCOM.
8 P1B10 input Port 1 parallel data input, bit DB10.
9 P1B9 input Port 1 parallel data input, bit DB9.
10 P1B8 input Port 1 parallel data input, bit DB8.
11 P1B7 input Port 1 parallel data input, bit DB7.
12 P1B6 input Port 1 parallel data input, bit DB6.
13 P1B5 input Port 1 parallel data input, bit DB5.
14 P1B4 input Port 1 parallel data input, bit DB4.
15 P1B3 input Port 1 parallel data input, bit DB3.
16 P1B2 input Port 1 parallel data input, bit DB2.
17 P1B1 input Port 1 parallel data input, bit DB1.
18 LSB-P1B0 input Port 1 parallel data input, bit DB0 (LSB).
19 RESERVED unconnected Reserved - no user connection. Leave floating.
20 RESERVED unconnected Reserved - no user connection. Leave floating.
21 DVDD power_in Digital supply voltage, 3.0-3.6 V. Second DVDD pin; tie to same rail as pin 5.
22 DCOM power_in Digital ground return; tie to same ground as pin 4.
23 MSB-P2B11 input Port 2 parallel data input, bit DB11 (MSB).
24 P2B10 input Port 2 parallel data input, bit DB10.
25 P2B9 input Port 2 parallel data input, bit DB9.
26 P2B8 input Port 2 parallel data input, bit DB8.
27 P2B7 input Port 2 parallel data input, bit DB7.
28 P2B6 input Port 2 parallel data input, bit DB6.
29 P2B5 input Port 2 parallel data input, bit DB5.
30 P2B4 input Port 2 parallel data input, bit DB4.
31 P2B3 input Port 2 parallel data input, bit DB3.
32 P2B2 input Port 2 parallel data input, bit DB2.
33 P2B1 input Port 2 parallel data input, bit DB1.
34 P2B0-LSB input Port 2 parallel data input, bit DB0 (LSB).
35 RESERVED unconnected Reserved - no user connection. Leave floating.
36 RESERVED unconnected Reserved - no user connection. Leave floating.
37 DIV0 input Control input for PLL divider and input-port selector mode (see Table I/II of datasheet).
38 DIV1 input Control input for PLL divider and input-port selector mode (see Table I/II of datasheet).
39 REFIO bidirectional Reference input/output. Sources the 1.20 V internal band-gap reference (1.14-1.26 V, ~100 nA drive) or accepts an external reference (0.1-1.25 V, R_in ≈ 1 MΩ). Bypass with 0.1 µF to ACOM when using internal reference.
40 FSADJ passive Full-scale output current adjust. Connect R_SET (typ. 2 kΩ) to ACOM; I_OUTFS = 32 × I_REF, giving 2-20 mA full-scale.
41 AVDD power_in Analog supply voltage, 3.0-3.6 V (3.3 V nom). Analog supply current I_AVDD ≈ 33 mA typ.
42 IOUTB output Complementary differential DAC current output. Full-scale 2-20 mA; output compliance −1.0 V to +1.25 V; output resistance ≈100 kΩ, C ≈ 5 pF.
43 IOUTA output Differential DAC current output. Full-scale 2-20 mA; output compliance −1.0 V to +1.25 V.
44 ACOM power_in Analog ground return for AVDD and DAC current outputs.
45 CLKCOM power_in Clock and PLL common (ground return for CLKVDD/PLLVDD).
46 LPF passive Phase-locked loop loop-filter pin. Connect external RC filter to PLLCOM.
47 PLLVDD power_in PLL supply voltage, 3.0-3.6 V. Tie to CLKCOM/PLLCOM ground to disable the internal PLL. I_PLLVDD ≈ 4.5 mA typ.
48 CLKVDD power_in Clock supply voltage, 3.0-3.6 V. Powers the clock receiver. I_CLKVDD ≈ 10 mA typ.

Key specifications

Parameter Value
Manufacturer Analog Devices
Package LQFP-48(7x7)
Category Data Acquisition
Pins 48

Ordering variants

Same part, different packaging or reel option.

  • AD9753ASTZRL
  • AD9753ASTZRLASTRL

CAD (KiCad official)

  • Symbol: AD9753ASTZRL
  • Footprint: Package_QFP:LQFP-48_7x7mm_P0.5mm
  • 3D model: LQFP-48(7x7) (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: Analog Devices datasheet (28 pp, sha256 c273731289795a16, retrieved 2026-08-17, tier: lcsc)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF