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MAX1135BEAP+T

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18
General Description
The MAX1134/MAX1135 are 150ksps, 16-bit ADCs.
These serially interfaced ADCs connect directly to SPI™,
QSPI™, and MICROWIRE™ devices without external
logic. They combine an input scaling network, internal
track/hold (T/H), clock, and three general-purpose digital
output pins (for external multiplexer or PGA control) in a
20-pin SSOP package. The excellent dynamic perfor-
mance (THD ≥ 90dB), high speed (150ksps in bipolar
mode), and low power (8.0mA) of these ADCs make
them ideal for applications such as industrial process
control, instrumentation, and medical applications.
The MAX1134 accepts input signals of 0 to +6V (unipo-
lar) or ±6V (bipolar), while the MAX1135 accepts input
signals of 0 to +2.048V (unipolar) or ±2.048V (bipolar).
Operating from a single 3.135V to 3.465V analog and
digital supply, power-down modes reduce current con-
sumption to 0.15mA at 10ksps and further reduce sup-
ply current to less than 20µA at slower data rates.
A serial strobe output (SSTRB) allows direct connection
to the TMS320 family digital-signal processors. The
MAX1134/MAX1135 user can select either the internal
clock or an external serial-interface clock for the ADC to
perform analog-to-digital conversions.
The MAX1134/MAX1135 feature internal calibration cir-
cuitry to correct linearity and offset errors. On-demand
calibration allows the user to optimize performance.
Three user-programmable logic outputs are provided
for the control of an 8-channel mux or PGA.
The MAX1134/MAX1135 are available in a 20-pin SSOP
package and are fully specified over the -40°C to
+85°C temperature range.
Applications
Industrial Process Control
Industrial I/O Modules
Data-Acquisition Systems
Medical Instruments
Portable and Battery-Powered Equipment
Features
♦ 150ksps (Bipolar) and 125ksps (Unipolar)
Sampling ADC
♦ 16 Bits, No Missing Codes
♦ 1LSB INL (typ) Guaranteed
♦ -100dB THD
♦ 3.3V Single-Supply Operation
♦ Low-Power Operation
4.5mA (typ) (Unipolar Mode)
♦ 1.2µA Shutdown Mode
♦ Software-Configurable Unipolar and Bipolar Input
Ranges
0 to +6V and ±6V (MAX1134)
0 to +2.048V and ±2.048V (MAX1135)
♦ Internal or External Clock
♦ SPI/QSPI/MICROWIRE TMS320-Compatible Serial
Interface
♦ Three User-Programmable Logic Outputs
♦ Small 20-Pin SSOP Package
MAX1134/MAX1135
16-Bit ADCs, 150ksps, 3.3V Single Supply
________________________________________________________________ Maxim Integrated Products 1
Ordering Information
19-2464; Rev 0; 4/02
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.
Ordering Information continued at end of data sheet.
Functional Diagram and Typical Application Circuit appear
at end of data sheet.
PART
TEMP
RANGE
PIN-
PACKAGE
INL
(LSB)
MAX1134BCAP 0°C to +70°C 20 SSOP ±2.5
MAX1134BEAP -40°C to +85°C 20 SSOP ±2.5
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor, Corp.
20
19
18
17
16
15
14
13
1
2
3
4
5
6
7
8
AIN
AGND
CREF
CSAV
DD
AGND
AV
DD
REF
TOP VIEW
DIN
DV
DD
DGND
SCLKP1
P2
SHDN
DGND
12
11
9
10
RST
DOUTSSTRB
PO
MAX1134
MAX1135
SSOP
Pin Configuration
MAX1134/MAX1135
16-Bit ADCs, 150ksps, 3.3V Single Supply
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(AV
DD
= DV
DD
= 3.3V ±5%, f
SCLK
= 3.6MHz, external clock (50% duty cycle), 24 clocks/conversion (150ksps), bipolar input, V
REF
=
2.048V, C
REF
= 4.7µF, C
CREF
= 1µF, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
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.
AV
DD
to AGND, DV
DD
to DGND ..............................-0.3V to +6V
AGND to DGND.....................................................-0.3V to +0.3V
AIN to AGND ....................................................................±16.5V
CREF, REF to AGND................................-0.3V to (AV
DD
+ 0.3V)
Digital Inputs to DGND.............................................-0.3V to +6V
Digital Outputs to DGND .........................-0.3V to (DV
DD
+ 0.3V)
Continuous Power Dissipation (T
A
= +70°C)
20-Pin SSOP (derate 8.00mW/°C above +70°C) .........640mW
Operating Temperature Ranges
MAX113_ _CAP...................................................0°C to +70°C
MAX113_ _EAP................................................-40°C to +85°C
Storage Temperature Range .............................-60°C to +150°C
Junction Temperature......................................................+150°C
Lead Temperature (soldering, 10s) .................................+300°C
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
DC ACCURACY (Note 1)
Resolution 16 Bits
Relative Accuracy INL Bipolar mode (Note 2) MAX113_B 1.0 ±2.5 LSB
No Missing Codes 16 Bits
Differential Nonlinearity DNL Bipolar mode MAX113_B -1 +1.75 LSB
Transition Noise 1.5 LSB
RMS
Unipolar ±4
Offset Error
Bipolar ±6
mV
Unipolar ±0.2
Gain Error (Note 3)
Bipolar ±0.3
%FSR
Offset Drift (Bipolar and Unipolar) Excluding reference drift ±1 ppm/°C
Gain Drift (Bipolar and Unipolar) Excluding reference drift ±4 ppm/°C
D YNA M IC SPEC IF IC A T IO N S ( 5 k Hz SINE-WAVE INPUT, 15 0 k s ps , 3 .6M H z CLOCK, BIPOLAR INPUT MODE. M A X1 13 4 , 1 2 V
P-P
.
M A X1 1 3 5, 4 .0 9 6 V
P-P
.)
f
IN
= 5kHz 80 84
Signal-to-Noise Plus Distortion
(SINAD)
f
IN
= 75kHz 83
dB
f
IN
= 5kHz 80 84
Signal-to-Noise Ratio (SNR)
f
IN
= 75kHz 83
dB
f
IN
= 5kHz -100 -90
Total Harmonic Distortion (THD)
f
IN
= 75kHz -93
dB
f
IN
= 5kHz 92 105
Spurious-Free Dynamic Range
(SFDR)
f
IN
= 75kHz 97
dB
ANALOG INPUT
Unipolar 0 +6
MAX1134
Bipolar -6 +6
Unipolar 0 +2.048
Input Range
MAX1135
Bipolar -2.048 +2.048
V
MAX1134/MAX1135
16-Bit ADCs, 150ksps, 3.3V Single Supply
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(AV
DD
= DV
DD
= 3.3V ±5%, f
SCLK
= 3.6MHz, external clock (50% duty cycle), 24 clocks/conversion (150ksps), bipolar input, V
REF
=
2.048V, C
REF
= 4.7µF, C
CREF
= 1µF, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Unipolar 7.5 10.5
MAX1134
Bipolar 5.9 8.4
Unipolar 100 1000
Input Impedance
MAX1135
Bipolar 3.4 5.3
kΩ
Input Capacitance 32 pF
CONVERSION RATE
Internal Clock Frequency 3 MHz
Aperture Delay t
AD
10 ns
Aperture Jitter t
AJ
50 ps
MODE 1 (24 EXTERNAL CLOCK CYCLES PER CONVERSION)
Unipolar 0.1 3.0
External Clock Frequency f
SCLK
Bipolar 0.1 3.6
MHz
Unipolar 4.17 125
Sample Rate
f
S
=
f
SCLK
/ 24
Bipolar 4.17 150
ksps
Unipolar 8 240
Conversion Time (Note 4)
t
CONV+ACQ
= 24 /
f
SCLK
Bipolar 6.7 240
µs
MODE 2 (INTERNAL CLOCK MODE)
External Clock Frequency
(Data Transfer Only)
4 MHz
Conversion Time (SSTRB low pulse width) 5.3 7 µs
Unipolar 1.67
Acquisition Time (Note 5)
Bipolar 1.39
µs
MODE 3 (32 EXTERNAL CLOCK CYCLES PER CONVERSION)
External Clock Frequency f
SCLK
Unipolar or bipolar 0.1 3.6 MHz
Sample Rate
f
S
=
f
SCLK
/ 32
Unipolar or bipolar 3.125 112 ksps
Conversion Time (Note 4)
t
CONV+ACQ
= 32 /
f
SCLK
Unipolar or bipolar 8.89 320 µs
EXTERNAL REFERENCE
Input Range (Notes 6, 7) 1.9 2.048 2.2 V
V
REF
= 2.048V, f
SCLK
= 3.6MHz 110
V
REF
= 2.048V, f
SCLK
= 0 100Input Current
In power-down, f
SCLK
= 0 0.1
µA
DIGITAL INPUTS
Input High Voltage V
IH
2.4 V
Input Low Voltage V
IL
0.8 V
Input Leakage I
IN
V
IN
= 0 or DV
DD
-1 +1 µA
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18

MAX1135BEAP+T

Mfr. #:
Buy MAX1135BEAP+T
Manufacturer:
Maxim Integrated
Description:
Analog to Digital Converters - ADC 16-Bit 150ksps 3.3V Single Supply
Lifecycle:
New from this manufacturer.
Delivery:
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