Rainbow Electronics MAX1183 - Manual

General Description
The MAX1183 is a +3V, dual 10-bit analog-to-digital
converter (ADC) featuring fully differential wideband
track-and-hold (T/H) inputs, driving two pipelined, nine-
stage ADCs. The MAX1183 is optimized for low-power,
high dynamic performance applications in imaging,
instrumentation, and digital communication applica-
tions. This ADC operates from a single +2.7V to +3.6V
supply, consuming only 120mW while delivering a typi-
cal signal-to-noise ratio (SNR) of 59.6dB at an input fre-
quency of 20MHz and a sampling rate of 40Msps. The
T/H driven input stages incorporate 400MHz (-3dB)
input amplifiers. The converters may also be operated
with single-ended inputs. In addition to low operating
power, the MAX1183 features a 2.8mA sleep mode as
well as a 1µA power-down mode to conserve power
during idle periods.
An internal +2.048V precision bandgap reference sets
the full-scale range of the ADC. A flexible reference
structure allows the use of this internal or an externally
derived reference, if desired for applications requiring
increased accuracy or a different input voltage range.
The MAX1183 features parallel, CMOS-compatible
three-state outputs. The digital output format can be set
to two’s complement or straight offset binary through a
single control pin. The device provides for a separate
output power supply of +1.7V to +3.6V for flexible inter-
facing. The MAX1183 is available in a 7mm
✕ 7mm, 48-
pin TQFP package, and is specified for the extended
industrial (-40°C to +85°C) temperature range.
Pin-compatible lower and higher speed versions of the
MAX1183 are also available. Refer to the MAX1180
data sheet for 105Msps, the MAX1181 data sheet for
80Msps, the MAX1182 data sheet for 65Msps, and the
MAX1184 data sheet for 20Msps. In addition to these
speed grades, this family includes a multiplexed output
version, for which digital data is presented time-inter-
leaved and on a single, parallel 10-bit output port.
Applications
High-Resolution Imaging
I/Q Channel Digitization
Multichannel IF Sampling
Instrumentation
Video Application
Ultrasound
Features
♦ Single +3V Operation
♦ Excellent Dynamic Performance
59.6dB SNR at f IN = 20MHz
73dB SFDR at f IN = 20MHz
♦ Low Power
40mA (Normal Operation)
2.8mA (Sleep Mode)
1µA (Shutdown Mode)
♦ 0.02dB Gain and 0.25° Phase Matching
♦ Wide ±1Vp-p Differential Analog Input Voltage
Range
♦ 400MHz -3dB Input Bandwidth
♦ On-Chip +2.048V Precision Bandgap Reference
♦ User-Selectable Output Format—Two’s
Complement or Offset Binary
♦ 48-Pin TQFP Package with Exposed Paddle for
Improved Thermal Dissipation
MAX1183
Dual 10-Bit, 40Msps, +3V, Low-Power ADC with
Internal Reference and Parallel Outputs
________________________________________________________________ Maxim Integrated Products 1
D1A
D0A
OGND
OV DD
OV
DD
OGND
D0B
D1B
D2B
D3B
D4B
D5B
COM
V DD
GND
INA+
INA-
V DD
GND
INB-
INB+
GND
V DD
CLK
1
2
3
4
5
6
7
8
9
10
11
12
36
35
34
33
32
31
30
29
28
27
26
25
48 TQFP-EP
MAX1183
GND V
DD
GND V
DD T/B
SLEEP
PD OE
D9B D8B D7B D6B
13 14 15 16 17 18 19 20 21 22 23 24
48 47 46 45 44 43 42 41 40 39 38 37
REFN REFP REFIN REFOUT D9A D8A D7A D6A D5A D4A D3A D2A
Pin Configuration
Ordering Information
19-2173; Rev 0; 9/01
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.
Functional Diagram appears at end of data sheet.
PART TEMP. RANGE PIN-PACKAGE
MAX1183ECM -40 °C to +85°C 48 TQFP-EP