MAX1188ACUP+ Datasheet MAX1178ACUP+, MAX1188ACUP+, MAX1188ACUP+T | P1-P3

General Description

The MAX1178/MAX1188 16-bit, low-power, successive-

approximation analog-to-digital converters (ADCs) fea-

ture automatic power-down, a factory-trimmed internal

clock, and a byte-wide parallel interface. The devices

operate from a single +4.75V to +5.25V analog supply

and feature a separate digital supply input for direct

interface with a +2.7V to +5.25V digital logic.

The MAX1188 accepts a bipolar analog input voltage

range of ±10V, while the MAX1178 accepts a bipolar

analog input voltage range of ±5V. All devices consume

no more than 26.5mW at a sampling rate of 135ksps

when using an external reference, and 31mW when using

the internal +4.096V reference. AutoShutdown™ reduces

supply current to 0.4mA at 10ksps.

The MAX1178/MAX1188 are ideal for high-perfor-

mance, battery-powered, data-acquisition applications.

Excellent AC performance (THD = -100dB) and DC

accuracy (±2 LSB INL) make the MAX1178/MAX1188

ideal for industrial process control, instrumentation, and

medical applications.

The MAX1178/MAX1188 are available in a 20-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

♦ Byte-Wide Parallel Interface

♦ Analog Input Voltage Range: ±10V, ±5V

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

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

♦ ±2 LSB INL

♦ ±1 LSB DNL

♦ Low Supply Current (max)

2.9mA (External Reference)

3.8mA (Internal Reference)

5µA AutoShutdown Mode

♦ Small Footprint

♦ 20-Pin TSSOP Package

MAX1178/MAX1188

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

Bipolar Analog Input Range

________________________________________________________________ Maxim Integrated Products 1

D0–D7

D8–D15

µP DATA

BUS

AGND DGND

+5V ANALOG +5V DIGITAL

ANALOG INPUT AIN

HBEN

EOC

R/C

REF

REFADJ

HIGH

BYTE

LOW

BYTE

10µF0.1µF

0.1µF 0.1µF

MAX1178

MAX1188

Typical Operating Circuit

19-2755; Rev 1; 8/03

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.

AutoShutdown is a trademark of Maxim Integrated Products, Inc.

Ordering Information

PART TEMP RANGE

PIN-

PACKAGE

INPUT

VOLTAGE

RANGE (V)

MAX1178ACUP 0°C to +70°C 20 TSSOP ±5

MAX1178BCUP 0°C to +70°C 20 TSSOP ±5

MAX1178CCUP 0°C to +70°C 20 TSSOP ±5

MAX1178AEUP -40° C to +85°C 20 TSSOP ±5

MAX1178BEUP -40° C to +85°C 20 TSSOP ±5

MAX1178CEUP -40°C to +85°C 20 TSSOP ±5

Pin Configuration and Functional Diagram appear at end of

data sheet.

Ordering Information continued at end of data sheet.

MAX1178/MAX1188

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, HBEN 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)

TSSOP (derate 10.9mW/°C above +70°C) ..................879mW

Operating Temperature Ranges

MAX11_ _ _CUP..................................................0°C to +70°C

MAX11_ _ _EUP...............................................-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 +1.5

Differential 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

MAX1178 -5 +5

Input Range V

AIN

MAX1188 -10 +10

Normal operation 5.3 6.9 9.2

MAX1178

Shutdown mode 3.0

Normal operation 7.8 10 13.0

Input Resistance R

AIN

MAX1188

Shutdown mode 6.0

kΩ

MAX1178/MAX1188

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

MAX1178,

-5V ≤ V

AIN

≤ +5V

Shutdown mode -1.8 +1.8

Normal operation -1.8 +1.2

Input Current I

AIN

MAX1188,

-10V ≤ V

AIN

≤ +10V

Shutdown mode -1.8 +1.8

MAX1178, V

AIN

= +5V, shutdown mode to

operating mode

1 1.4

Input Current Step at Power-Up I

MAX1188, 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-SC

±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

Tri-State Output Leakage I

±10 µA

Tri-State Output Capacitance C

15 pF

P1-P3 P4-P6 P7-P9 P10-P12 P13-P14

MAX1188ACUP+

Mfr. #:

Buy MAX1188ACUP+

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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MAX1188ACUP+

MAX1188ACUP+

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