MAX1187BEUI+ Datasheet MAX1187CEUI+, MAX1187BEUI+, MAX1187ACUI+ | P1-P3

MAX1179/MAX1187/MAX1189

16-Bit, 135ksps, Single-Supply ADCs with

Bipolar Analog Input Range

________________________________________________________________ Maxim Integrated Products 1

19-2675; Rev 1; 1/03

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 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

Features

♦ Analog Input Voltage Range: ±10V, ±5V, or 0 to 10V

♦ 16-Bit Wide Parallel Interface

♦ Single +4.75V to +5.25V Analog Supply Voltage

♦ Interfaces with +2.7V to +5.25V Digital Logic

♦ ±2LSB INL (max)

♦ ±1LSB DNL (max)

♦ Low Supply Current (MAX1189)

5.3mA (External Reference)

6.2mA (Internal Reference)

5µA AutoShutdown Mode

♦ Small Footprint

28-Pin TSSOP Package

Ordering Information

PART TEMP RANGE PIN-PACKAGE

INPUT VOLTAGE

RANGE

INL (LSB)

MAX1179ACUI 0°C to +70°C 28 TSSOP ±5V ±2

MAX1179BCUI 0°C to +70°C 28 TSSOP ±5V ±2

REFADJ

DGND

RESET

REF

AGND

AIN

AGND

D15

D14

D13

D12

D11

D10

TSSOP

TOP VIEW

MAX1179

MAX1187

MAX1189

R/C

EOC

Pin Configuration

AutoShutdown is a trademark of Maxim Integrated Products, Inc.

Ordering Information continued at end of data sheet.

MAX1179/MAX1187/MAX1189

16-Bit, 135ksps, Single-Supply ADCs with

Bipolar Analog Input Range

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

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.

to AGND .........................................................-0.3V to +6V

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 (AV

+ 0.3V)

CS, R/C, RESET to DGND ........................................-0.3V to +6V

D_, EOC to DGND ...................................-0.3V to (DV

+ 0.3V)

Maximum Continuous Current Into Any Pin ........................50mA

Continuous Power Dissipation (T

= +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

ELECTRICAL CHARACTERISTICS

(AV

= DV

= +5V ±5%, external reference = +4.096V, C

REF

= 10µF, C

REFADJ

= 0.1µF, V

REFADJ

= AV

, T

= T

MIN

to T

MAX

unless otherwise noted. Typical values are at T

= +25°C.)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

DC ACCURACY

Resolution RES 16 Bits

MAX11_ _A -1 +1

MAX11_ _B -1.0 +1.5Differential Nonlinearity DNL

No missing codes

over temperature

MAX11_ _C -1 +2

LSB

MAX11_ _A -2 +2

MAX11_ _B -2 +2

Integral Nonlinearity INL

MAX11_ _C -4 +4

LSB

RMS noise, external reference 0.6

Transition Noise

Internal reference 0.75

LSB

RMS

Offset Error -10 0 +10 mV

Gain Error 0 ±0.2 %FSR

Offset Drift 16 µV/°C

Gain Drift ±1 ppm/°C

AC ACCURACY (f

= 1kHz, V

AIN

= 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

MAX1187 0 +10

Input Range V

AIN

MAX1189 -10 +10

MAX1179/MAX1187 Normal operation 5.3 6.9 9.2

MAX1179 Shutdown mode 3

MAX1177 Shutdown mode 5.3

Normal operation 7.8 10 13.0

Input Resistance R

AIN

MAX1189

Shutdown mode 6

kΩ

MAX1179/MAX1187/MAX1189

16-Bit, 135ksps, Single-Supply ADCs with

Bipolar Analog Input Range

_______________________________________________________________________________________ 3

ELECTRICAL CHARACTERISTICS (continued)

(AV

= DV

= +5V ±5%, external reference = +4.096V, C

REF

= 10µF, C

REFADJ

= 0.1µF, V

REFADJ

= AV

, T

= T

MIN

to T

MAX

unless otherwise noted. Typical values are at T

= +25°C.)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Normal operation -1.8 +0.4

MAX1179,

-5V ≤ V

AIN

≤ +5V

Shutdown mode -1.8 +1.8

MAX1187,

0 ≤ V

AIN

≤ +10V

Normal/shutdown

mode

-0.1 +2.0

Normal operation -1.8 +1.2

Input Current I

AIN

MAX1189,

-10V ≤ V

AIN

≤ +10V

Shutdown mode -1.8 +1.8

MAX1179, V

AIN

= +5V, shutdown mode to

operating mode

1 1.4

Input Current Step at Power-Up I

MAX1189, V

AIN

= +10V, shutdown mode to

operating mode

0.5 0.7

Input Capacitance C

10 pF

INTERNAL REFERENCE

REF Output Voltage V

REF

4.056 4.096 4.136 V

REF Output Tempco ±35 ppm/°C

REF Short-Circuit Current I

REF-

(

)

±10 mA

EXTERNAL REFERENCE

REF and REFADJ Input Voltage

Range

3.8 4.2 V

REFADJ Buffer Disable Threshold

0.4

0.1

Normal mode, f

SAMPLE

= 135ksps 60 100

REF Input Current I

REF

Shutdown mode (Note 1) ±0.1 ±10

µA

REFADJ Input Current I

REFADJ

REFADJ = AV

16 µA

DIGITAL INPUTS/OUTPUTS

Output High Voltage V

SOURCE

= 0.5mA, DV

= +2.7V to +5.25V,

= +5.25V

0.4

Output Low Voltage V

SINK

= 1.6mA, DV

= +2.7V to +5.25V,

= +5.25V

0.4 V

Input High Voltage V

0.7 ×

Input Low Voltage V

0.3 ×

Input Leakage Current Digital input = DV

or 0V -1 +1 µA

Input Hysteresis V

HYST

0.2 V

Input Capacitance C

15 pF

Three-State Output Leakage I

±10 µA

Three-State Output Capacitance C

15 pF

P1-P3 P4-P6 P7-P9 P10-P12 P13-P15

MAX1187BEUI+

Mfr. #:

Buy MAX1187BEUI+

Manufacturer:

Maxim Integrated

Description:

Analog to Digital Converters - ADC 16-Bit 135ksps 4.2V Precision ADC

Lifecycle:

New from this manufacturer.

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MAX1187BEUI+

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