MAX5186 Datasheet, PDF (1/15 Pages) Maxim Integrated Products – Dual, 8-Bit, 40MHz, Current/Voltage, Simultaneous-Output DACs

19-1581; Rev 3; 12/01
Dual, 8-Bit, 40MHz, Current/Voltage,
Simultaneous-Output DACs
General Description
The MAX5186 contains two 8-bit, simultaneous-update,
current-output digital-to-analog converters (DACs)
designed for superior performance in communications
systems requiring analog signal reconstruction with low
distortion and low-power operation. The MAX5189 pro-
vides equal specifications, with on-chip precision resis-
tors for voltage output operation. The MAX5186/
MAX5189 are designed for a 10pVs glitch operation to
minimize unwanted spurious signal components at the
output. An on-board +1.2V bandgap circuit provides a
well-regulated, low-noise reference that can be dis-
abled for external reference operation.
The MAX5186/MAX5189 are designed to provide a high
level of signal integrity for the least amount of power dissi-
pation. Both DACs operate from a single supply voltage
of +2.7V to +3.3V. Additionally, these DACs have three
modes of operation: normal, low-power standby, and
complete shutdown, which provides the lowest possible
power dissipation with a 1µA (max) shutdown current. A
fast wake-up time (0.5µs) from standby mode to full DAC
operation allows power conservation by activating the
DACs only when required.
The MAX5186/MAX5189 are packaged in a 28-pin
QSOP and are specified for the extended (-40°C to
+85°C) temperature range. For higher resolution, dual
10-bit versions, refer to the MAX5180/MAX5183 data
sheet.
Features
o +2.7V to +3.3V Single-Supply Operation
o Wide Spurious-Free Dynamic Range:
70dB at f_OUT = 2.2MHz
o Fully Differential Outputs for Each DAC
o ±0.5% FSR Gain Mismatch
o ±0.15° Phase Mismatch
o Low-Current Standby or Full Shutdown Modes
o Internal +1.2V, Low-Noise Bandgap Reference
o Small 28-Pin QSOP Package
PART
MAX5186BEEI
MAX5189BEEI
Ordering Information
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
28 QSOP
28 QSOP
Pin Configuration
Applications
Signal Reconstruction of I and Q
Transmit Signals
Digital Signal Processing
Arbitrary Waveform Generation (AWG)
Imaging Applications
TOP VIEW
CREF1 1
OUT1P 2
OUT1N 3
AGND 4
AV_DD 5
DACEN 6
PD 7
CS 8
CLK 9
N.C. 10
REN 11
DGND 12
DGND 13
D0 14
MAX5186
MAX5189
QSOP
28 CREF2
27 OUT2P
26 OUT2N
25 REFO
24 REFR
23 DGND
22 DV_DD
21 D7
20 D6
19 D5
18 D4
17 D3
16 D2
15 D1
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