MAX1178AEUP Maxim Integrated, MAX1178AEUP Datasheet

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MAX1178AEUP

Manufacturer Part Number
MAX1178AEUP
Description
Analog to Digital Converters - ADC
Manufacturer
Maxim Integrated
Datasheet

Specifications of MAX1178AEUP

Number Of Channels
1
Architecture
SAR
Conversion Rate
135 KSPs
Resolution
16 bit
Input Type
Single-Ended
Snr
91 dB
Interface Type
Parallel
Operating Supply Voltage
4.75 V to 5.25 V
Maximum Operating Temperature
+ 85 C
Package / Case
TSSOP-20
Maximum Power Dissipation
879 mW
Minimum Operating Temperature
- 40 C
Number Of Converters
1
Voltage Reference
4.096 V
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.
19-2755; Rev 1; 8/03
Pin Configuration and Functional Diagram appear at end of
data sheet.
AutoShutdown is a trademark of Maxim Integrated Products, Inc.
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.
Temperature Sensing and Monitoring
Industrial Process Control
I/O Modules
Data-Acquisition Systems
Precision Instrumentation
16-Bit, 135ksps, Single-Supply ADCs with
________________________________________________________________ Maxim Integrated Products
General Description
Applications
Bipolar Analog Input Range
o Byte-Wide Parallel Interface
o Analog Input Voltage Range: ±10V, ±5V
o Single +4.75V to +5.25V Analog Supply Voltage
o Interface with +2.7V to +5.25V Digital Logic
o ±2 LSB INL
o ±1 LSB DNL
o Low Supply Current (max)
o Small Footprint
o 20-Pin TSSOP Package
Ordering Information continued at end of data sheet.
MAX1178ACUP
MAX1178BCUP
MAX1178CCUP
MAX1178AEUP
MAX1178BEUP
MAX1178CEUP
2.9mA (External Reference)
3.8mA (Internal Reference)
5µA AutoShutdown Mode
PART
ANALOG INPUT
LOW
BYTE
HIGH
BYTE
0.1µF
Typical Operating Circuit
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
TEMP RANGE
0°C to +70°C
0°C to +70°C
0°C to +70°C
+5V ANALOG +5V DIGITAL
AIN
R/C
CS
HBEN
AV
Ordering Information
DD
MAX1178
MAX1188
AGND DGND
DV
D8–D15
REFADJ
DD
D0–D7
EOC
REF
PIN-
PACKAGE
20 TSSOP
20 TSSOP
20 TSSOP
20 TSSOP
20 TSSOP
20 TSSOP
OR
0.1µF
µP DATA
BUS
0.1µF
Features
RANGE (V)
VOLTAGE
INPUT
10µF
±5
±5
±5
±5
±5
±5
1

Related parts for MAX1178AEUP

MAX1178AEUP Summary of contents

Page 1

... LSB DNL o Low Supply Current (max) 2.9mA (External Reference) 3.8mA (Internal Reference) 5µA AutoShutdown Mode o Small Footprint o 20-Pin TSSOP Package PART MAX1178ACUP MAX1178BCUP MAX1178CCUP MAX1178AEUP MAX1178BEUP MAX1178CEUP Ordering Information continued at end of data sheet. Applications ANALOG INPUT LOW BYTE Features Ordering Information PIN- ...

Page 2

Single-Supply ADCs with Bipolar Analog Input Range ABSOLUTE MAXIMUM RATINGS AV to AGND .........................................................-0. DGND.........................................................-0.3V to +6V DD AGND to DGND.....................................................-0.3V to +0.3V AIN to AGND .....................................................-16.5V to +16.5V REF, REFADJ to AGND............................-0.3V ...

Page 3

Single-Supply ADCs with ELECTRICAL CHARACTERISTICS (continued) ( +5V ±5%, external reference = +4.096V unless otherwise noted. Typical values are at T PARAMETER SYMBOL Input Current Input Current Step at Power-Up Input Capacitance ...

Page 4

Single-Supply ADCs with Bipolar Analog Input Range ELECTRICAL CHARACTERISTICS (continued) ( +5V ±5%, external reference = +4.096V unless otherwise noted. Typical values are at T PARAMETER SYMBOL POWER SUPPLIES Analog Supply Voltage ...

Page 5

Single-Supply ADCs with (Typical Operating Circuit 20pF. Typical values are at T LOAD A INL vs. CODE MAX1178/88 toc01 2.5 2.0 1.5 1.0 0.5 0 -0.5 -1.0 -1.5 -2.0 -2.5 0 10,000 ...

Page 6

Single-Supply ADCs with Bipolar Analog Input Range (Typical Operating Circuit 20pF. Typical values are +25°C, unless otherwise noted.) LOAD A SINAD vs. FREQUENCY 100 ...

Page 7

Single-Supply ADCs with PIN NAME High-Byte Enable Input. Used to multiplex the 16-bit conversion result. 13 HBEN 1: MSB available on the data bus. 0: LSB available on the data bus. Convert Start. The first falling edge of ...

Page 8

Single-Supply ADCs with Bipolar Analog Input Range t CSL CS R EOC HBEN HIGH-Z D7/D15–D0/D8 Figure 2. MAX1178/MAX1188 Timing Diagram Power-Down Modes Select standby mode or shutdown mode with the R/C bit during the second falling ...

Page 9

Single-Supply ADCs with Selecting Standby or Shutdown Mode The MAX1178/MAX1188 have a selectable standby or low-power shutdown mode. In standby mode, the ADC’s internal reference and reference buffer do not power down between conversions, eliminating the need to ...

Page 10

Single-Supply ADCs with Bipolar Analog Input Range +5V 68kΩ 100kΩ 0.1µF 150kΩ Figure 7. MAX1178/MAX1188 Reference-Adjust Circuit External Reference An external reference can be placed at either the input (REFADJ) or the output (REF) of the MAX1178/ MAX1188s’ ...

Page 11

Single-Supply ADCs with MAX1178 MAX1188 AIN ANALOG INPUT MAX427 Figure 10. MAX1178/MAX1188 Fast-Settling Input Buffer change in input signal. The input amplifier must have a high enough slew rate to complete the required output voltage change before the ...

Page 12

Single-Supply ADCs with Bipolar Analog Input Range Integral Nonlinearity Integral nonlinearity (INL) is the deviation of the values on an actual transfer function from a straight line. This straight line can be either a best-straight-line fit or a ...

Page 13

Single-Supply ADCs with REFERENCE REF INPUT AIN SCALER AGND CLOCK CS R/C Pin Configuration TOP VIEW D4/D12 1 20 D5/D13 D6/D14 D7/D15 4 17 MAX1178 R MAX1188 EOC ...

Page 14

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 14 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2003 Maxim Integrated Products ...

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