Rainbow Electronics MAX5190 User Manual

General description, Applications, Features

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 MAX5187 is an 8-bit, current-output digital-to-ana-
log converter (DAC) designed for superior performance
in signal reconstruction or arbitrary waveform genera-
tion applications requiring analog signal reconstruction
with low distortion and low-power operation. The volt-
age-output MAX5190 provides equal specifications,
with on-chip precision resistors for voltage output oper-
ation. Both devices are designed for a 10pVs glitch
operation to minimize unwanted spurious signal com-
ponents at the output. An on-board +1.2V bandgap cir-
cuit provides a well-regulated, low-noise reference that
can be disabled for external reference operation.

The MAX5187/MAX5190 are designed to provide a high
level of signal integrity for the least amount of power
dissipation. They operate from a single supply of +2.7V
to +3.3V. Additionally, these DACs have three modes of
operation: normal, low-power standby, and full shut-
down, which provides the lowest possible power dissi-
pation with a 1µA (max) shutdown current. A fast
wake-up time (0.5µs) from standby mode to full DAC
operation allows for power conservation by activating
the DAC only when required.

The MAX5187/MAX5190 are packaged in a 24-pin
QSOP and are specified for the extended (-40°C to
+85°C) temperature range. For higher resolution, 10-bit
versions, see the MAX5181/MAX5184 data sheet.

Applications

Signal Reconstruction

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 Output
♦ Low-Current Standby or Full Shutdown Modes
♦ Internal +1.2V Low-Noise Bandgap Reference
♦ Small 24-Pin QSOP Package

MAX5187/MAX5190

8-Bit, 40MHz, Current/Voltage-Output DACs

________________________________________________________________ Maxim Integrated Products

REFO

REFR

DGND

REN

CLK

DACEN

AGND

OUTN

OUTP

CREF

QSOP

TOP VIEW

MAX5187
MAX5190

19-1582; Rev 2; 12/01

PART

MAX5187BEEG

-40°C to +85°C

TEMP. RANGE

PIN-PACKAGE

24 QSOP

Pin Configuration

Ordering Information

MAX5190BEEG

-40°C to +85°C

24 QSOP