Rainbow Electronics MAX5191 - Manual

General Description
The MAX5188 is a dual 8-bit, alternate-phase-update,
current-output digital-to-analog converter (DAC)
designed for superior performance in systems requiring
analog signal reconstruction with low distortion and
low-power operation. The MAX5191 provides equal
specifications, with on-chip output resistors for voltage-
output operation. Both devices are designed for 10pVs
glitch operation to reduce distortion and minimize
unwanted spurious signal components at the output. An
on-board +1.2V bandgap circuit provides a well-regu-
lated, low-noise reference that may be disabled for
external reference operation.
The MAX5188/MAX5191 are designed to provide a high
level of signal integrity for the least amount of power
dissipation. Both DACs operate from a +2.7V to +3.3V
single supply. Additionally, these DACs have three
modes of operation: normal, low-power standby, and
full shutdown. A full shutdown provides the lowest pos-
sible power dissipation with a maximum shutdown cur-
rent of 1µA. A fast wake-up time (0.5µs) from standby
mode to full DAC operation allows for power conserva-
tion by activating the DACs only when required.
The MAX5188/MAX5191 are available in a 28-pin QSOP
package and are specified for the extended (-40°C to
+85°C) temperature range. For pin-compatible 10-bit
versions, refer to the MAX5182/MAX5185 data sheet.
Applications
Signal Reconstruction Applications
Digital Signal Processing
Arbitrary Waveform Generators
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 Between DAC Outputs
♦ Low-Current Standby or Full Shutdown Modes
♦ Internal +1.2V Low-Noise Bandgap Reference
♦ Small 28-Pin QSOP Package
MAX5188/MAX5191
Dual, 8-Bit, 40MHz, Current/Voltage,
Alternate-Phase Output DACs
________________________________________________________________ Maxim Integrated Products 1
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19
18
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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
N.C.
CLK
PD
DACEN
AV DD
AGND
OUT1N
OUT1P
CREF1
QSOP
TOP VIEW
MAX5188
MAX5191
REN
CS
19-1580; Rev 2; 12/01
Pin Configuration
Ordering Information
PART
MAX5188BEEI
MAX5191BEEI
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.