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PDF MAX11661 Data sheet ( Hoja de datos )

Número de pieza MAX11661
Descripción (MAX11661 - MAX11666) Serial 12-/10-/8-Bit ADCs
Fabricantes Maxim Integrated Products 
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No Preview Available ! MAX11661 Hoja de datos, Descripción, Manual

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19-5530; Rev 3; 11/11
EVAALVUAAILTAIOBNLEKIT
500ksps, Low-Power,
Serial 12-/10-/8-Bit ADCs
General Description
The MAX11661−MAX11666 are 12-/10-/8-bit, compact,
low-power, successive approximation analog-to-digital
converters (ADCs). These high-performance ADCs include
a high-dynamic range sample-and-hold and a high-speed
serial interface. These ADCs accept a full-scale input from
0V to the power supply or to the reference voltage.
The MAX11662/MAX11664/MAX11666 feature dual, sin-
gle-ended analog inputs connected to the ADC core
using a 2:1 MUX. The devices also include a separate
supply input for data interface and a dedicated input
for reference voltage. In contrast, the single-channel
devices generate the reference voltage internally from
the power supply.
These ADCs operate from a 2.2V to 3.6V supply and
consume only 3.3mW. The devices include full power-
down mode and fast wake-up for optimal power man-
agement and a high-speed 3-wire serial interface. The
3-wire serial interface directly connects to SPIK, QSPIK,
and MICROWIREK devices without external logic.
Excellent dynamic performance, low voltage, low power,
ease of use, and small package size make these con-
verters ideal for portable battery-powered data-acquisi-
tion applications, and for other applications that demand
low-power consumption and minimal space.
These ADCs are available in a 10-pin FMAX® package,
and a 6-pin SOT23 package. These devices operate
over the -40NC to +125NC temperature range.
Features
S 500ksps Conversion Rate, No Pipeline Delay
S 12-/10-/8-Bit Resolution
S 1-/2-Channel, Single-Ended Analog Inputs
S Low-Noise 73dB SNR
S Variable I/O: 1.5V to 3.6V (Dual-Channel Only)
Allows the Serial Interface to Connect Directly
to 1.5V, 1.8V, 2.5V, or 3V Digital Systems
S 2.2V to 3.6V Supply Voltage
S Low Power
3.3mW
Very Low Power Consumption at 8µA/ksps
S External Reference Input (Dual-Channel Devices Only)
S 1.3µA Power-Down Current
S SPI-/QSPI-/MICROWIRE-Compatible Serial
Interface
S 10-Pin, 3mm x 5mm µMAX Package
S 6-Pin, 2.8mm x 2.9mm SOT23 Package
S Wide -40NC to +125NC Operation
Data Acquisition
Portable Data Logging
Medical Instrumentation
Battery-Operated Systems
Communication Systems
Automotive Systems
Applications
Ordering Information
PART
PIN-PACKAGE
BITS
MAX11661AUT+
6 SOT23
8
MAX11662AUB+
10 FMAX-EP*
8
MAX11663AUT+
6 SOT23
10
MAX11664AUB+
10 FMAX-EP*
10
MAX11665AUT+
6 SOT23
12
MAX11666AUB+
10 FMAX-EP*
12
Note: All devices are specified over the -40°C to +125°C operating temperature range.
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed pad.
NO. OF CHANNELS
1
2
1
2
1
2
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
µMAX is a registered trademark of Maxim Integrated Products, Inc.
________________________________________________________________ Maxim Integrated Products  1
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.
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1 page




MAX11661 pdf
www.DataSheet.co.kr
500ksps, Low-Power,
Serial 12-/10-/8-Bit ADCs
ELECTRICAL CHARACTERISTICS (MAX11665) (continued)
(VDD = 2.2V to 3.6V, fSCLK = 8MHz, 50% duty cycle, 500ksps, CDOUT = 10pF, TA = -40NC to +125NC, unless otherwise noted. Typical
values are at TA = +25NC.) (Note 1)
PARAMETER
Total Harmonic Distortion
Spurious-Free Dynamic Range
Intermodulation Distortion
Full-Power Bandwidth
Full-Linear Bandwidth
Small-Signal Bandwidth
CONVERSION RATE
Throughput
Conversion Time
Acquisition Time
Aperture Delay
Aperture Jitter
Serial Clock Frequency
ANALOG INPUT
Input Voltage Range
Input Leakage Current
Input Capacitance
SYMBOL
THD
SFDR
IMD
CONDITIONS
f1 = 239.8kHz, f2 = 200.2kHz
-3dB point
SINAD > 68dB
tACQ
fCLK
VAIN
IILA
CAIN
From CS falling edge
Track
Hold
MIN TYP MAX UNITS
-85 -76
dB
77 85
dB
-84 dB
40 MHz
2.5 MHz
45 MHz
5 500 ksps
1.56
Fs
52 ns
4 ns
15 ps
0.08
8 MHz
0
VDD
V
0.002 Q1
FA
20
4
pF
DIGITAL INPUTS (SCLK, CS, CHSEL)
Digital Input High Voltage
VIH
0.75 x
VVDD
V
Digital Input Low Voltage
VIL
0.25 x
VVDD
V
Digital Input Hysteresis
Digital Input Leakage Current
Digital Input Capacitance
DIGITAL OUTPUT (DOUT)
VHYST
IIL
CIN
Inputs at GND or VDD
0.15 x
VVDD
0.001
2
Q1
V
FA
pF
Output High Voltage
VOH
ISOURCE = 200FA
0.85 x
VVDD
V
Output Low Voltage
VOL ISINK = 200FA
0.15 x
VVDD
V
High-Impedance Leakage
Current
IOL
Q1.0
FA
High-Impedance Output
Capacitance
COUT
4 pF
POWER SUPPLY
Positive Supply Voltage
Positive Supply Current
(Full-Power Mode)
VDD
IVDD
VAIN = VGND
2.2 3.6 V
1.76
mA
_______________________________________________________________________________________   5
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MAX11661 arduino
www.DataSheet.co.kr
500ksps, Low-Power,
Serial 12-/10-/8-Bit ADCs
ELECTRICAL CHARACTERISTICS (MAX11662)
(VDD = 2.2V to 3.6V, VREF = VDD, VOVDD = VDD, fSCLK = 8MHz, 50% duty cycle, 500ksps, CDOUT = 10pF, TA = -40NC to +125NC,
unless otherwise noted. Typical values are at TA = +25NC.) (Note 1)
PARAMETER
DC ACCURACY
Resolution
Integral Nonlinearity
Differential Nonlinearity
Offset Error
Gain Error
Total Unadjusted Error
SYMBOL
CONDITIONS
INL
DNL
OE
GE
TUE
No missing codes
Excluding offset and reference errors
MIN TYP MAX UNITS
8 Bits
Q0.25 LSB
Q0.25 LSB
0.45 Q0.8 LSB
0 Q0.25 LSB
0.5 LSB
Channel-to-Channel Offset
Matching
0.01 LSB
Channel-to-Channel Gain
Matching
0.01 LSB
DYNAMIC PERFORMANCE (fAIN = 250kHz)
Signal-to-Noise and Distortion
SINAD
Signal-to-Noise Ratio
SNR
Total Harmonic Distortion
THD
Spurious-Free Dynamic Range
SFDR
Intermodulation Distortion
IMD
Full-Power Bandwidth
Full-Linear Bandwidth
Small-Signal Bandwidth
Crosstalk
CONVERSION RATE
Throughput
Conversion Time
Acquisition Time
tACQ
Aperture Delay
Aperture Jitter
Serial-Clock Frequency
fCLK
ANALOG INPUT (AIN1, AIN2)
Input Voltage Range
VAIN_
Input Leakage Current
IILA
Input Capacitance
CAIN_
f1 = 239.8kHz, f2 = 200.2kHz
-3dB point
SINAD > 49dB
From CS falling edge
Track
Hold
49 49.7
dB
49 49.7
dB
-75 -67
dB
63 67
dB
-65 dB
40 MHz
2.5 MHz
45 MHz
-90 dB
5 500 ksps
1.56
Fs
52 ns
4 ns
15 ps
0.08
8 MHz
0
VREF
V
0.002 Q1
FA
20
4
pF
EXTERNAL REFERENCE INPUT (REF)
Reference Input Voltage Range
VREF
1
VDD +
0.05
V
Reference Input Leakage Current
Reference Input Capacitance
IILR
CREF
Conversion stopped
0.005
5
Q1
FA
pF
______________________________________________________________________________________   11
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