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General Description
The MAX1300/MAX1301 multirange, low-power, 16-bit,
successive-approximation, analog-to-digital converters
(ADCs) operate from a single +5V supply and achieve
throughput rates up to 115ksps. A separate digital sup-
ply allows digital interfacing with 2.7V to 5.25V systems
using the SPI™-/QSPI™-/MICROWIRE™-compatible
serial interface. Partial power-down mode reduces the
supply current to 1.3mA (typ). Full power-down mode
reduces the power-supply current to 1µA (typ).
The MAX1300 provides eight (single-ended) or four
(true differential) analog input channels. The MAX1301
provides four (single-ended) or two (true differential)
analog input channels. Each analog input channel is
independently software programmable for seven sin-
gle-ended input ranges (0 to +6V, -6V to 0, 0 to +12V,
-12V to 0, ±3V, ±6V, and ±12V), and three differential
input ranges (±6V, ±12V, ±24V).
An on-chip +4.096V reference offers a small convenient
ADC solution. The MAX1300/MAX1301 also accept an
external reference voltage between 3.800V and 4.136V.
The MAX1300 is available in a 24-pin TSSOP package
and the MAX1301 is available in a 20-pin TSSOP pack-
age. Each device is specified for operation from -40°C
to +85°C.
Applications
Industrial Control Systems
Data-Acquisition Systems
Avionics
Robotics
Features
Software-Programmable Input Range for Each
Channel
Single-Ended Input Ranges
0 to +6V, -6V to 0, 0 to +12V, -12V to 0, ±3V,
±6V, and ±12V
Differential Input Ranges
±6V, ±12V, and ±24V
Eight Single-Ended or Four Differential Analog
Inputs (MAX1300)
Four Single-Ended or Two Differential Analog
Inputs (MAX1301)
±16.5V Overvoltage Tolerant Inputs
Internal or External Reference
115ksps Maximum Sample Rate
Single +5V Power Supply
20-/24-Pin TSSOP Package
MAX1300/MAX1301
8-/4-Channel, ±12V Multirange Inputs,
Serial 16-Bit ADCs
________________________________________________________________ Maxim Integrated Products 1
Pin Configurations
Ordering Information
24
23
22
21
20
19
18
17
1
2
3
4
5
6
7
8
AGND1
AGND2
AV
DD2
AGND3CH2
CH1
CH0
AV
DD1
TOP VIEW
REF
REFCAP
DV
DD
DV
DDO
CH6
CH5
CH4
CH3
16
15
14
13
9
10
11
12
DGND
DGNDO
DOUT
SCLKSSTRB
DIN
CS
CH7
TSSOP
MAX1300
19-3575; Rev 1; 11/06
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.
PART
TEMP
RANGE
PIN-
PACKAGE
C H A N N EL S
PKG
CODE
MAX1300AEUG*
-40°C to
+85°C
24 TSSOP
8
U24-1
MAX1300BEUG*
-40°C to
+85°C
24 TSSOP
8
U24-1
MAX1301AEUP*
-40°C to
+85°C
20 TSSOP
4
U20-2
MAX1301BEUP
-40°C to
+85°C
20 TSSOP
4
U20-2
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
Pin Configurations continued at end of data sheet.
*Future product—contact factory for availability.
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Inhaltsverzeichnis

Seite 1 - Serial 16-Bit ADCs

General DescriptionThe MAX1300/MAX1301 multirange, low-power, 16-bit,successive-approximation, analog-to-digital converters(ADCs) operate from a singl

Seite 2

MAX1300/MAX13018-/4-Channel, ±12V Multirange Inputs, Serial 16-Bit ADCs10 ____________________________________________________________________________

Seite 3

MAX1300/MAX13018-/4-Channel, ±12V Multirange Inputs, Serial 16-Bit ADCs_______________________________________________________________________________

Seite 4

MAX1300/MAX13018-/4-Channel, ±12V Multirange Inputs, Serial 16-Bit ADCs12 ____________________________________________________________________________

Seite 5

Detailed DescriptionThe MAX1300/MAX1301 multirange, low-power, 16-bitsuccessive-approximation ADCs operate from a single+5V supply and have a separate

Seite 6

MAX1300/MAX1301Power SuppliesTo maintain a low-noise environment, the MAX1300 andMAX1301 provide separate power supplies for eachsection of circuitry.

Seite 7

Single-ended conversions are internally referenced toAGND1 (Tables 3 and 4). In differential mode, IN+ andIN- are selected according to Tables 3 and 5

Seite 8

MAX1300/MAX1301Figure 8 illustrates the software-selectable differentialanalog input voltage range that produces a valid digitaloutput. Each analog in

Seite 9

Figure 6. Simplified Analog Input CircuitMAX1300MAX1301R2R1VSJ*RSOURCEANALOGSIGNALSOURCER2R1VSJ*RSOURCEANALOGSIGNALSOURCEIN_+IN_+*MINIMIZE RSOURCE TO

Seite 10

MAX1300/MAX1301Differential Common-Mode RangeThe MAX1300/MAX1301 differential common-moderange (VCMDR) must remain within -14V to +10V to obtainvalid

Seite 11

Digital InterfaceThe MAX1300/MAX1301 feature a serial interface that iscompatible with SPI/QSPI and MICROWIRE devices.DIN, DOUT, SCLK, CS, and SSTRB f

Seite 12

MAX1300/MAX13018-/4-Channel, ±12V Multirange Inputs, Serial 16-Bit ADCs2 _____________________________________________________________________________

Seite 13

MAX1300/MAX13018-/4-Channel, ±12V Multirange Inputs, Serial 16-Bit ADCs20 ____________________________________________________________________________

Seite 14

Start BitCommunication with the MAX1300/MAX1301 is accom-plished using the three input data word formats shownin Table 3. Each input data word begins

Seite 15

MAX1300/MAX1301Mode ControlThe MAX1300/MAX1301 contain one byte-wide mode-control register. The timing diagram of Figure 15 showshow to use the mode-c

Seite 16

• User supplies one byte of SCLK, then drives CShigh to relieve processor load while the ADCconverts• After SSTRB transitions high, the user suppliest

Seite 17

MAX1300/MAX1301External Acquisition Mode (Mode 1)The slowest maximum throughput rate is achieved withthe external acquisition method. SCLK controls th

Seite 18

• External-Acquisition-Mode Control Byte• Internal-Clock-Mode Control Byte• Reset Byte• Partial Power-Down-Mode Control ByteThis prevents the MAX1300/

Seite 19

MAX1300/MAX1301Bridge ApplicationThe MAX1300/MAX1301 convert 1kHz signals moreaccurately than a similar sigma-delta converter thatmight be considered

Seite 20

Differential Nonlinearity (DNL)DNL is the difference between an actual step width andthe ideal value of 1 LSB. A DNL error specification ofgreater tha

Seite 21

MAX1300/MAX1301Unipolar Offset Error-FSR to 0VWhen a zero-scale analog input voltage is applied tothe converter inputs, the digital output is all ones

Seite 22 - Mode Control

Effective Number of Bits (ENOB)ENOB indicates the global accuracy of an ADC at aspecific input frequency and sampling rate. With aninput range equal t

Seite 23 - Table 7. Mode-Control Byte

MAX1300/MAX13018-/4-Channel, ±12V Multirange Inputs, Serial 16-Bit ADCs_______________________________________________________________________________

Seite 24

MAX1300/MAX13018-/4-Channel, ±12V Multirange Inputs, Serial 16-Bit ADCs30 ____________________________________________________________________________

Seite 25

MAX1300/MAX13018-/4-Channel, ±12V Multirange Inputs, Serial 16-Bit ADCsMaxim cannot assume responsibility for use of any circuitry other than circuitr

Seite 26

MAX1300/MAX13018-/4-Channel, ±12V Multirange Inputs, Serial 16-Bit ADCs4 _____________________________________________________________________________

Seite 27

MAX1300/MAX13018-/4-Channel, ±12V Multirange Inputs, Serial 16-Bit ADCs_______________________________________________________________________________

Seite 28

MAX1300/MAX13018-/4-Channel, ±12V Multirange Inputs, Serial 16-Bit ADCs6 _____________________________________________________________________________

Seite 29

MAX1300/MAX13018-/4-Channel, ±12V Multirange Inputs, Serial 16-Bit ADCs_______________________________________________________________________________

Seite 30 - Revision History

MAX1300/MAX13018-/4-Channel, ±12V Multirange Inputs, Serial 16-Bit ADCs8 _____________________________________________________________________________

Seite 31 - Package Information

MAX1300/MAX13018-/4-Channel, ±12V Multirange Inputs, Serial 16-Bit ADCs_______________________________________________________________________________

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