MAX1187 반도체 회로 부품 판매점
16-Bit / 135ksps / Single-Supply ADCs with Bipolar Analog Input Range
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 Maxim Integrated |
19-2675; Rev 1; 1/03
16-Bit, 135ksps, Single-Supply ADCs with
Bipolar Analog Input Range
General Description
The MAX1179/MAX1187/MAX1189 16-bit, low-power,
successive-approximation analog-to-digital converters
(ADCs) feature automatic power-down, a factory-
trimmed internal clock, and a 16-bit wide parallel inter-
face. The devices operate from a single +4.75V to
+5.25V analog supply and feature a separate digital
supply input for direct interface with +2.7V to +5.25V
digital logic.
The MAX1179 accepts a bipolar input voltage range of
±5V. The MAX1187 accepts an analog input voltage
range from 0 to +10V, while the MAX1189 accepts a
bipolar analog input voltage range of ±10V. All devices
consume only 23mW at a sampling rate of 135ksps
when using an external reference and 29mW when
using the internal +4.096V reference. AutoShutdown™
reduces supply current to 0.4mA at 10ksps. The
MAX1179/MAX1187/MAX1189 are ideal for high-perfor-
mance, battery-powered data-acquisition applications.
Excellent AC performance (THD = -100dB) and DC
accuracy (±2LSB INL) make the MAX1179/MAX1187/
MAX1189 ideal for industrial process control, instrumen-
tation, and medical applications.
The MAX1179/MAX1187/MAX1189 are available in a
28-pin TSSOP package and are fully specified over the
-40°C to +85°C extended temperature range and the
0°C to +70°C commercial temperature range.
Applications
Temperature Sensing and Monitoring
Industrial Process Control
I/O Modules
Data-Acquisition Systems
Precision Instrumentation
AutoShutdown is a trademark of Maxim Integrated Products, Inc.
Features
o Analog Input Voltage Range: ±10V, ±5V, or 0 to 10V
o 16-Bit Wide Parallel Interface
o Single +4.75V to +5.25V Analog Supply Voltage
o Interfaces with +2.7V to +5.25V Digital Logic
o ±2LSB INL (max)
o ±1LSB DNL (max)
o Low Supply Current (MAX1189)
5.3mA (External Reference)
6.2mA (Internal Reference)
5µA AutoShutdown Mode
o Small Footprint
28-Pin TSSOP Package
Pin Configuration
TOP VIEW
D8 1
D9 2
D10 3
D11 4
D12 5
D13 6
D14 7
D15 8
R/C 9
EOC 10
AVDD 11
AGND 12
AIN 13
AGND 14
MAX1179
MAX1187
MAX1189
TSSOP
28 D7
27 D6
26 D5
25 D4
24 D3
23 D2
22 D1
21 D0
20 DVDD
19 DGND
18 CS
17 RESET
16 REF
15 REFADJ
PART
TEMP RANGE
PIN-PACKAGE
MAX1179ACUI
0°C to +70°C
MAX1179BCUI
0°C to +70°C
Ordering Information continued at end of data sheet.
28 TSSOP
28 TSSOP
Ordering Information
INPUT VOLTAGE
RANGE
±5V
±5V
INL (LSB)
±2
±2
________________________________________________________________ Maxim Integrated Products 1
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.
16-Bit, 135ksps, Single-Supply ADCs with
Bipolar Analog Input Range
ABSOLUTE MAXIMUM RATINGS
AVDD to AGND .........................................................-0.3V to +6V
DVDD to DGND.........................................................-0.3V to +6V
AGND to DGND.....................................................-0.3V to +0.3V
AIN to AGND .....................................................-16.5V to +16.5V
REF, REFADJ to AGND............................-0.3V to (AVDD + 0.3V)
CS, R/C, RESET to DGND ........................................-0.3V to +6V
D_, EOC to DGND ...................................-0.3V to (DVDD + 0.3V)
Maximum Continuous Current Into Any Pin ........................50mA
Continuous Power Dissipation (TA = +70°C)
28-Pin TSSOP (derate 12.8mW/°C above +70°C) .....1026mW
Operating Temperature Range
MAX11_ _ _CUI ...................................................0°C to +70°C
MAX11_ _ _EUI ................................................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Junction Temperature ......................................................+150°C
Lead Temperature (soldering, 10s) .................................+300°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(AVDD = DVDD = +5V ±5%, external reference = +4.096V, CREF = 10µF, CREFADJ = 0.1µF, VREFADJ = AVDD, TA = TMIN to TMAX,
unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
DC ACCURACY
Resolution
RES
16 Bits
Differential Nonlinearity
DNL
No missing codes
over temperature
MAX11_ _A
MAX11_ _B
MAX11_ _C
-1
-1.0
-1
+1
+1.5
+2
LSB
MAX11_ _A
-2 +2
Integral Nonlinearity
INL MAX11_ _B
-2 +2 LSB
MAX11_ _C
-4 +4
Transition Noise
RMS noise, external reference
Internal reference
0.6
0.75
LSBRMS
Offset Error
-10 0 +10 mV
Gain Error
0 ±0.2 %FSR
Offset Drift
16 µV/°C
Gain Drift
±1 ppm/°C
AC ACCURACY (fIN = 1kHz, VAIN = full range, 135ksps)
Signal-to-Noise Plus Distortion
SINAD
86 90
dB
Signal-to-Noise Ratio
SNR
87 91
dB
Total Harmonic Distortion
THD
-100 -92
dB
Spurious-Free Dynamic Range
SFDR
92 103
dB
ANALOG INPUT
MAX1179
-5 +5
Input Range
VAIN
MAX1187
MAX1189
0 +10 V
-10 +10
MAX1179/MAX1187 Normal operation
5.3 6.9 9.2
MAX1179
Shutdown mode
3
Input Resistance
RAIN
MAX1177
MAX1189
Shutdown mode
Normal operation
Shutdown mode
5.3 kΩ
7.8 10 13.0
6
2 _______________________________________________________________________________________
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