MAX1396ETB+T Maxim Integrated Products, MAX1396ETB+T Datasheet

IC ADC 12BIT 312.5KSPS 10-TDFN

MAX1396ETB+T

Manufacturer Part Number
MAX1396ETB+T
Description
IC ADC 12BIT 312.5KSPS 10-TDFN
Manufacturer
Maxim Integrated Products
Datasheet
1.MAX1396ETBT.pdf (18 pages)

Specifications of MAX1396ETB+T

Number Of Bits
12
Sampling Rate (per Second)
312.5k
Data Interface
DSP, MICROWIRE™, QSPI™, Serial, SPI™
Number Of Converters
1
Power Dissipation (max)
830µW
Voltage Supply Source
Single Supply
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
10-WFDFN Exposed Pad
Number Of Adc Inputs
2
Architecture
SAR
Conversion Rate
312 KSPs
Resolution
12 bit
Interface Type
Serial
Voltage Reference
External
Supply Voltage (max)
3.3 V
Mounting Style
SMD/SMT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
MAX1396ETB+T
19-3644; Rev 2; 10/09
The MAX1393/MAX1396 micropower, serial-output, 12-
bit, analog-to-digital converters (ADCs) operate with a
single power supply from +1.5V to +3.6V. These ADCs
feature automatic shutdown, fast wake-up, and a high-
speed 3-wire interface. Power consumption is only
0.734mW (V
of 312.5ksps. AutoShutdown™ between conversions
reduces power consumption at slower throughput rates.
The MAX1393/MAX1396 require an external reference
V
MAX1393 provides one true-differential analog input
that accepts signals ranging from 0 to V
mode) or ±V
vides two single-ended inputs that accept signals rang-
ing from 0 to V
available through a 5MHz 3-wire SPI™-/QSPI™-/
MICROWIRE™-/digital signal processor (DSP)-compati-
ble serial interface. Excellent dynamic performance,
low voltage, low power, ease of use, and small pack-
age sizes make these converters ideal for portable bat-
tery-powered data-acquisition applications, and for
other applications that demand low power consumption
and minimal space.
The MAX1393/MAX1396 are available in a space-saving
(3mm x 3mm) 10-pin TDFN package. The parts operate
over the extended (-40°C to +85°C) temperature range.
+ Denotes a lead(Pb)-free/RoHS-compliant package.
* EP = Exposed pad.
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
REF
1.5V to 3.6V, 312.5ksps, 1-Channel True-Differential/
MAX1393ETB+
MAX1396ETB+
that has a wide range from 0.6V to V
Portable Datalogging
Data Acquisition
Medical Instruments
Battery-Powered Instruments
Process Control
PART
DD
REF
= +1.5V) at the maximum conversion rate
/2 (bipolar mode). The MAX1396 pro-
REF
________________________________________________________________ Maxim Integrated Products
. Analog conversion results are
2-Channel Single-Ended, 12-Bit, SAR ADCs
General Description
-40°C to +85°C
-40°C to +85°C
TEMP RANGE
Applications
REF
(unipolar
DD
. The
PIN-PACKAGE
10 TDFN-EP*
10 TDFN-EP*
♦ 312.5ksps, 12-Bit Successive-Approximation
♦ Single True-Differential Analog Input Channel
♦ Dual Single-Ended Input Channel with Channel-
♦ ±1 LSB INL, ±1 LSB DNL, No Missing Codes
♦ ±2 LSB Total Unadjusted Error (TUE)
♦ 70dB SINAD at 75kHz Input Frequency
♦ External Reference (0.6V to V
♦ Single-Supply Voltage (+1.5V to +3.6V)
♦ 0.915mW at 300ksps, 1.8V
♦ 0.305mW at 100ksps, 1.8V
♦ 3.1µW at 1ksps, 1.8V
♦ < 1µA Shutdown Current
♦ AutoShutdown Between Conversions
♦ SPI-/QSPI-/MICROWIRE-/DSP-Compatible,
♦ Small (3mm x 3mm) 10-Pin TDFN Package
Typical Operating Circuit and Pin Configurations appear at
end of data sheet.
AutoShutdown is a trademark of Maxim Integrated Products, Inc.
SPI/QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
Register (SAR) ADCs
with Unipolar-/Bipolar-Select Input (MAX1393)
Select Input (MAX1396)
3- or 4-Wire Serial Interface
ANALOG INPUTS
1-CH DIFF
2-CH S/E
Ordering Information
DD
)
TOP MARK
Features
AOZ
APC
1

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MAX1396ETB+T Summary of contents

Page 1

... Serial Interface ♦ Small (3mm x 3mm) 10-Pin TDFN Package Applications Typical Operating Circuit and Pin Configurations appear at end of data sheet. AutoShutdown is a trademark of Maxim Integrated Products, Inc. SPI/QSPI are trademarks of Motorola, Inc. MICROWIRE is a trademark of National Semiconductor Corp. PIN-PACKAGE 10 TDFN-EP* ...

Page 2

True-Differential/ 2-Channel Single-Ended, 12-Bit, SAR ADCs ABSOLUTE MAXIMUM RATINGS V to GND ..............................................................-0.3V to +4V DD SCLK, CS, OE, CH1/CH2, UNI/BIP, DOUT to GND.........................................-0. AIN+, AIN-, AIN1, AIN2, REF to GND ........-0.3V to ...

Page 3

True-Differential/ 2-Channel Single-Ended, 12-Bit, SAR ADCs ELECTRICAL CHARACTERISTICS (continued +1.5V to +3.6V REF +25°C.) A PARAMETER SYMBOL Full-Power Bandwidth Full-Linear Bandwidth CONVERSION RATE Conversion ...

Page 4

True-Differential/ 2-Channel Single-Ended, 12-Bit, SAR ADCs ELECTRICAL CHARACTERISTICS (continued +1.5V to +3.6V REF DD REF T = +25°C.) A PARAMETER SYMBOL Tri-State Leakage Current Tri-State Output Capacitance ...

Page 5

True-Differential/ 2-Channel Single-Ended, 12-Bit, SAR ADCs UNI/BIP OR CH1/CH2 t CHS t UBS OE t CHH t UBH CSO CSS SCLK t DOE HIGH-Z DOUT Figure 1. Detailed Serial-Interface Timing Diagram DOUT ...

Page 6

True-Differential/ 2-Channel Single-Ended, 12-Bit, SAR ADCs (V = +1.5V +1.5V 0.1μ REF REF INL vs. CODE 1 1. 1.5V REF 0.6 0.4 0.2 ...

Page 7

True-Differential/ 2-Channel Single-Ended, 12-Bit, SAR ADCs (V = +1.5V +1.5V 0.1μ REF REF GAIN ERROR vs. REFERENCE VOLTAGE 400 V = 3.6V DD 300 200 100 0 -100 -200 ...

Page 8

True-Differential/ 2-Channel Single-Ended, 12-Bit, SAR ADCs PIN NAME MAX1393 MAX1396 Positive Supply Voltage. Connect with a 0.1μF capacitor as close to the device as possible. 2 — AIN- Negative Analog ...

Page 9

True-Differential/ 2-Channel Single-Ended, 12-Bit, SAR ADCs and the difference between the sampled positive and negative input voltages is converted. The time required for the T/H to acquire an input signal is determined by how quickly ...

Page 10

True-Differential/ 2-Channel Single-Ended, 12-Bit, SAR ADCs FULL-SCALE REF TRANSITION FFF FFE REF 1 LSB = 4096 FFD FFC FFB 004 003 002 001 000 ...

Page 11

True-Differential/ 2-Channel Single-Ended, 12-Bit, SAR ADCs AutoShutdown Mode The ADC automatically powers down on the SCLK falling edge that clocks out the LSB. This is the falling edge after the 15th SCLK. DOUT goes low ...

Page 12

True-Differential/ 2-Channel Single-Ended, 12-Bit, SAR ADCs POWER-UP ADC POWER- AND ACQUIRE STATE DOWN (t ) ACQ UNI/BIP (CH1/CH2)* BIPOLAR (AIN1 SCLK HIGH-Z DOUT *INDICATES THE MAX1396 Figure 8. Serial-Interface ...

Page 13

True-Differential/ 2-Channel Single-Ended, 12-Bit, SAR ADCs POWER-UP POWER- ADC AND ACQUIRE DOWN STATE (t ) ACQ OE UNI/BIP BIPOLAR (AIN1)* (CH1/CH2 SCLK DOUT D0 *INDICATES THE MAX1396 Figure 10. DSP ...

Page 14

True-Differential/ 2-Channel Single-Ended, 12-Bit, SAR ADCs I/O OE FSX CS FSR CLKX SCLK CLKR DR DOUT I/O UNI/BIP (CH1/CH2)* a) TMS320C541 CONNECTION DIAGRAM I/O OE TFS CS RFS SCLK SCLK DR DOUT I/O UNI/BIP (CH1/CH2)* ...

Page 15

True-Differential/ 2-Channel Single-Ended, 12-Bit, SAR ADCs POWER SUPPLY V DD STAR 10Ω GROUND (OPTIONAL) POINT V GND DD DATA MAX1393/MAX1396 Figure 13. Power-Supply Grounding Connections Signal-to-Noise Ratio (SNR) SNR is a dynamic figure of merit ...

Page 16

True-Differential/ 2-Channel Single-Ended, 12-Bit, SAR ADCs The MAX1393/MAX1396 sample data on the falling edge of its third SCLK cycle (Figure 14). In actuality, there is a small delay between the falling edge of the sampling ...

Page 17

True-Differential/ 2-Channel Single-Ended, 12-Bit, SAR ADCs Pin Configurations TOP VIEW MAX1393 + TDFN × (3mm 3mm) TOP VIEW MAX1396 + ...

Page 18

... 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. 18 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2009 Maxim Integrated Products DESCRIPTION Maxim is a registered trademark of Maxim Integrated Products, Inc ...

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