Rainbow Electronics MAX5189 - Manual

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.
Applications
Signal Reconstruction of I and Q
Transmit Signals
Digital Signal Processing
Arbitrary Waveform Generation (AWG)
Imaging Applications
Features
♦ +2.7V to +3.3V Single-Supply Operation
♦ Wide Spurious-Free Dynamic Range:
70dB at f OUT = 2.2MHz
♦ Fully Differential Outputs for Each DAC
♦ ±0.5% FSR Gain Mismatch
♦ ±0.15° Phase Mismatch
♦ Low-Current Standby or Full Shutdown Modes
♦ Internal +1.2V, Low-Noise Bandgap Reference
♦ Small 28-Pin QSOP Package
MAX5186/MAX5189
Dual, 8-Bit, 40MHz, Current/Voltage,
Simultaneous-Output DACs
________________________________________________________________ Maxim Integrated Products 1
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25
24
23
22
21
20
19
18
17
16
15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
CREF2
OUT2P
OUT2N
REFO
REFR
DGND
D1
DV DD
D7
D6
D5
D4
D3
D2
D0
DGND
DGND
REN
N.C.
CLK
CS
PD
DACEN
AV DD
AGND
OUT1N
OUT1P
CREF1
QSOP
TOP VIEW
MAX5186
MAX5189
19-1581; Rev 3; 12/01
Pin Configuration
Ordering Information
PART
MAX5186BEEI
MAX5189BEEI
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
28 QSOP
28 QSOP
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.