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MAX5621 Datasheet(PDF) 1 Page - Maxim Integrated Products

Part No. MAX5621
Description  16-Bit DACs with 16-Channel Sample-and-Hold Outputs
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Manufacturer  MAXIM [Maxim Integrated Products]
Direct Link  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

MAX5621 Datasheet(HTML) 1 Page - Maxim Integrated Products

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For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
General Description
The MAX5621/MAX5622/MAX5623 are 16-bit digital-to-
analog converters (DACs) with 16 sample-and-hold
(SHA) outputs for applications where a high number of
programmable voltages are required. These devices
include a clock oscillator and a sequencer that updates
the DAC with codes from an internal SRAM. No external
components are required to set offset and gain.
The MAX5621/MAX5622/MAX5623 feature a -4.5V to
+9.2V output voltage range. Other features include a
200µV/step resolution, with output linearity error, typi-
cally 0.005% of full-scale range (FSR). The 100kHz
refresh rate updates each SHA every 320µs, resulting
in negligible output droop. Remote ground sensing
allows the outputs to be referenced to the local ground
of a separate device.
These devices are controlled through a 20MHz
SPI™/QSPI™/MICROWIRE™-compatible 3-wire serial
interface. Immediate update mode allows any channel’s
output to be updated within 20µs. Burst mode allows
multiple values to be loaded into memory in a single,
high-speed data burst. All channels are updated within
330µs after data has been loaded.
Each device features an output clamp and output resis-
tors for filtering. The MAX5621 features a 50
Ω output
impedance and is capable of driving up to 250pF of out-
put capacitance. The MAX5622 features a 500
Ω output
impedance and is capable of driving up to 10nF of output
capacitance. The MAX5623 features a 1k
Ω output imped-
ance and is capable of driving up to 10nF of output
capacitance.
The MAX5621/MAX5622/MAX5623 are available in 64-pin
TQFP (12mm x 12mm) and 68-pin thin QFN (10mm x
10mm) packages.
________________________Applications
MEMS Mirror Servo Control
Industrial Process Control
Automatic Test Equipment
Instrumentation
Features
♦ Integrated 16-Bit DAC and 16-Channel SHA with
SRAM and Sequencer
♦ 16 Voltage Outputs
♦ 0.005% Output Linearity
♦ 200µV Output Resolution
♦ Flexible Output Voltage Range
♦ Remote Ground Sensing
♦ Fast Sequential Loading: 1.3µs per Register
♦ Burst and Immediate Mode Addressing
♦ No External Components Required for Setting
Gain and Offset
♦ Integrated Output Clamp Diodes
♦ Three Output Impedance Options
MAX5621 (50
Ω), MAX5622 (500Ω), and
MAX5623 (1k
Ω)
19-2715; Rev 2; 1/06
16-Bit DACs with 16-Channel
Sample-and-Hold Outputs
________________________________________________________________ Maxim Integrated Products
1
Pin Configurations
Ordering Information
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor, Corp.
PART
PIN-PACKAGE
PKG CODE
MAX5621UCB
64 TQFP
C64-8
MAX5621UTK
68 Thin QFN-EP*
T6800-3
MAX5622UCB
64 TQFP
C64-8
MAX5622UTK
68 Thin QFN-EP*
T6800-3
MAX5623UCB
64 TQFP
C64-8
MAX5623UTK
68 Thin QFN-EP*
T6800-3
Pin Configurations continued at end of data sheet.
38
39
40
41
42
43
44
45
46
47
THIN QFN
TOP VIEW
35
36
37
48
49
50
11
10
9
8
7
6
5
4
3
2
16
15
14
13
12
1
MAX5621
MAX5622
MAX5623
ECLK
CH
VSS
OUT10
N.C.
OUT9
N.C.
OUT8
AGND
VDD
N.C.
OUT7
N.C.
OUT6
N.C.
CL
IMMED
VLOGIC
SCLK
DIN
CS
VSS
17
N.C.
AGND
VLSHA
DGND
CLKSEL
RST
VLDAC
GS
N.C.
VDD
51 N.C.
N.C.
*EP = Exposed pad.
Note: All devices specified over 0°C to +85°C operating
range. For other temperature ranges, contact factory.


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