MAX1116EKA+T Maxim Integrated Products, MAX1116EKA+T Datasheet

IC ADC 8BIT SERIAL SOT23-8

MAX1116EKA+T

Manufacturer Part Number
MAX1116EKA+T
Description
IC ADC 8BIT SERIAL SOT23-8
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of MAX1116EKA+T

Number Of Bits
8
Sampling Rate (per Second)
100k
Data Interface
MICROWIRE™, QSPI™, Serial, SPI™
Number Of Converters
1
Power Dissipation (max)
910µW
Voltage Supply Source
Single Supply
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
SOT-23-8
Number Of Adc Inputs
1
Architecture
SAR
Conversion Rate
100 KSPs
Resolution
8 bit
Interface Type
Serial
Voltage Reference
Internal 4.096 V
Supply Voltage (max)
5 V
Mounting Style
SMD/SMT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
MAX1116EKA+TTR
The MAX1115/MAX1116 low-power, 8-bit, analog-to-
digital converters (ADCs) feature an internal track/hold
(T/H), voltage reference, V
interface. The MAX1115 is specified from +2.7V to
+5.5V, and the MAX1116 is specified from +4.5V to
+5.5V. Both parts consume only 175µA at 100ksps.
The full-scale analog input range is determined by the
internal reference of +2.048V (MAX1115) or +4.096V
(MAX1116). The MAX1115/MAX1116 also feature
AutoShutdown™ power-down mode which reduces
power consumption to <1µA when the device is not in
use. The 3-wire serial interface directly connects to
SPI™, QSPI™, and MICROWIRE™ devices without
external logic. Conversions up to 100ksps are per-
formed using an internal clock.
The MAX1115/MAX1116 are available in an 8-pin
SOT23 package with a footprint that is just 30% of an
8-pin SO.
19-1822; Rev 1; 2/02
AutoShutdown is a trademark of Maxim Integrated Products.
SPI/QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor, Corp.
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.
________________________Applications
Low-Power, Hand-Held Portable Devices
System Diagnostics
Battery-Powered Test Equipment
Receive-Signal-Strength Indicators
4mA to 20mA Powered Remote Data-Acquisition
Systems
Single-Supply, Low-Power, Serial 8-Bit ADCs
________________________________________________________________ Maxim Integrated Products
General Description
DD
monitor, clock, and serial
o Single Supply
o Input Voltage Range: 0 to V
o Internal Track/Hold; 100kHz Sampling Rate
o Internal Reference
o SPI/QSPI/MICROWIRE-Compatible Serial Interface
o Small 8-Pin SOT23 Package
o Automatic Power-Down
o Low Power
MAX1115EKA
MAX1116EKA
TOP VIEW
+2.7V to +3.6V (MAX1115)
+4.5V to +5.5V (MAX1116)
+2.048V (MAX1115)
+4.096V (MAX1116)
175µA at 100ksps
18µA at +3V and 10ksps
1µA in Power-Down Mode
PART
GND
CH0
V
I.C.
DD
-40°C to +85°C
-40°C to +85°C
TEMP RANGE
1
2
3
4
Ordering Information
MAX1115
MAX1116
SOT23
Pin Configuration
REF
PIN-
PA CK A G E
8 SOT23
8 SOT23
8
7
6
5
SCLK
DOUT
CONVST
I.C.
Features
M A RK
AADU
AADV
TO P
1

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MAX1116EKA+T Summary of contents

Page 1

... Battery-Powered Test Equipment Receive-Signal-Strength Indicators 4mA to 20mA Powered Remote Data-Acquisition Systems AutoShutdown is a trademark of Maxim Integrated Products. SPI/QSPI are trademarks of Motorola, Inc. MICROWIRE is a trademark of National Semiconductor, Corp. ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’ ...

Page 2

Single-Supply, Low-Power, Serial 8-Bit ADCs ABSOLUTE MAXIMUM RATINGS V to GND ...........................................................-0.3V to +6.0V DD CH0 to GND ...............................................-0. Digital Output to GND ................................-0. Digital Input to GND ..............................................-0.3V to +6.0V Maximum Current into Any Pin ...

Page 3

Single-Supply, Low-Power, Serial 8-Bit ADCs ELECTRICAL CHARACTERISTICS (continued +2.7V to +3.6V (MAX1115 PARAMETER SYMBOL Supply Rejection Ratio PSRR DIGITAL INPUTS (CNVST AND SCLK) Input High Voltage Input Low Voltage Input Hystersis V Input Current High ...

Page 4

Single-Supply, Low-Power, Serial 8-Bit ADCs (V = +3V (MAX1115 +5V (MAX1116), f scu = 5MHz, f sample = 100ksps noted.) INTEGRAL NONLINEARITY vs. OUTPUT CODE 1.0 0.8 0.6 0.4 0.2 0 -0.2 -0.4 -0.6 -0.8 ...

Page 5

Single-Supply, Low-Power, Serial 8-Bit ADCs (V = +3V (MAX1115 +5V (MAX1116), f scu = 5MHz, f sample = 100ksps noted.) GAIN ERROR vs. TEMPERATURE 2.0 1.5 1.0 0.5 0 MAX1116 V = +5V DD -0.5 ...

Page 6

Single-Supply, Low-Power, Serial 8-Bit ADCs PIN NAME 1 V Positive Supply Voltage DD 2 CH0 Analog Voltage Input 3, 5 I.C. Internally Connected. Connect to ground. 4 GND Ground 6 CNVST Convert/Start Input. CNVST initiates a power-up and starts a ...

Page 7

Single-Supply, Low-Power, Serial 8-Bit ADCs V CH0 DD 0.1µF ANALOG INPUTS GND MAX1115 MAX1116 CONVST SCLK DOUT Figure 3. Typical Operating Circuit Input Voltage Range Internal protection diodes that clamp the analog input to V and GND allow the input ...

Page 8

Single-Supply, Low-Power, Serial 8-Bit ADCs ACTIVE t CSH CH0 CNVST t CONV IDLE LOW SCLK t csd DOUT Figure 6a. Conversion and Interface Timing, Conversion on CH0 with SCLK Idle Low ACTIVE t CSH CH0 CNVST t CONV IDLE HIGH ...

Page 9

Single-Supply, Low-Power, Serial 8-Bit ADCs ACTIVE t CSH V DD CH0 2 CNVST t CONV IDLE LOW SCLK t csd DOUT Figure 6c. Conversion and Interface Timing, Conversion on V ACTIVE t CSH V DD CH0 2 CNVST t CONV ...

Page 10

Single-Supply, Low-Power, Serial 8-Bit ADCs OUTPUT CODE FULL-SCALE TRANSITION 11111111 11111110 11111101 00000011 00000010 00000001 00000000 INPUT VOLTAGE (LSB) Figure 7. Input/Output Transfer Function active conversion process interrupt the current conver- sion and cause the input ...

Page 11

Single-Supply, Low-Power, Serial 8-Bit ADCs SCLK CNVST CH0 INPUT MULTIPLEXER SPLIT lengths for best supply-noise rejection. If the power supply is noisy, a 0.1µF capacitor in conjunction with a 10Ω series resistor can be connected to form ...

Page 12

... 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. 12 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2002 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products ...

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