MAXIM MAX1061, MAX1063 Technical data

General Description
The MAX1061/MAX1063 low-power, 10-bit analog-to­digital converters (ADCs) feature a successive-approxi­mation ADC, automatic power-down, fast wake-up (2µs), an on-chip clock, +2.5V internal reference, and a high-speed, byte-wide parallel interface. They operate with a single +3V analog supply and feature a V
pin that allows them to interface directly with a +1.8V to +3.6V digital supply.
Power consumption is only 5.7mW (V
DD
= V
LOGIC
) at the maximum sampling rate of 250ksps. Two software­selectable power-down modes enable the MAX1061/ MAX1063 to be shut down between conversions; accessing the parallel interface returns them to normal operation. Powering down between conversions can cut supply current to under 10µA at reduced sampling rates.
Both devices offer software-configurable analog inputs for unipolar/bipolar and single-ended/pseudo-differen­tial operation. In single-ended mode, the MAX1061 has eight input channels and the MAX1063 has four input channels (four and two input channels, respectively, when in pseudo-differential mode).
Excellent dynamic performance and low power, com­bined with ease of use and small package size, make these converters ideal for battery-powered and data­acquisition applications or for other circuits with demand­ing power consumption and space requirements.
The MAX1061 is available in a 28-pin QSOP package, while the MAX1063 is available in a 24-pin QSOP. For pin-compatible +5V, 10-bit versions, refer to the MAX1060/MAX1064 data sheet.
Applications
Industrial Control Systems Data Logging
Energy Management Patient Monitoring
Data-Acquisition Systems Touch Screens
Features
10-Bit Resolution, ±0.5 LSB Linearity
+3V Single-Supply Operation
User-Adjustable Logic Level (+1.8V to +3.6V)
Internal +2.5V Reference
Software-Configurable, Analog Input Multiplexer
8-Channel Single Ended/ 4-Channel Pseudo-Differential (MAX1061) 4-Channel Single Ended/ 2-Channel Pseudo-Differential (MAX1063)
Software-Configurable, Unipolar/Bipolar Inputs
Low Power
1.9mA (250ksps)
1.0mA (100ksps) 400µA (10ksps) 2µA (Shutdown)
Internal 3MHz Full-Power Bandwidth Track/Hold
Byte-Wide Parallel (8 + 2) Interface
Small Footprint: 28-Pin QSOP (MAX1061)
24-Pin QSOP (MAX1063)
MAX1061/MAX1063
250ksps, +3V, 8-/4-Channel, 10-Bit ADCs
with +2.5V Reference and Parallel Interface
________________________________________________________________ Maxim Integrated Products 1
19-2724; Rev 0; 4/03
PART
MAX1061ACEI
0°C to +70°C
TEMP RANGE
PIN-PACKAGE
28 QSOP
Ordering Information
Pin Configurations
±0.5
INL
(LSB)
MAX1061BCEI
0°C to +70°C
±128 QSOP
Ordering Information continued at end of data sheet.
Typical Operating Circuits appear at end of data sheet.
Pin Configurations continued at end of data sheet.
MAX1061BEEI
MAX1061AEEI
-40°C to +85°C
±1
-40°C to +85°C
±0.528 QSOP
28 QSOP
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.
查询MAX1061AEEI供应商
TOP VIEW
HBEN
D1/D9
1
2
D7
3
D6
4
D5
5
D4
MAX1063
6
D3
7
D2
8
24
23
22
21
20
19
18
17
V
LOGIC
V
DD
REF
REFADJ
GND
COM
CH0
CH1
9
D0/D8
10
INT
11
RD
12
QSOP
16
CH2
15
CH3
14
CS
13
CLKWR
MAX1061/MAX1063
250ksps, +3V, 8-/4-Channel, 10-Bit ADCs with +2.5V Reference and Parallel Interface
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(VDD= V
LOGIC
= +2.7V to +3.6V, COM = GND, REFADJ = VDD, V
REF
= +2.5V, 4.7µF capacitor at REF pin, f
CLK
= 4.8MHz (50% duty
cycle), T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at TA= +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.
VDDto GND..............................................................-0.3V to +6V
V
LOGIC
to GND.........................................................-0.3V to +6V
CH0–CH7, COM to GND............................-0.3V to (V
DD
+ 0.3V)
REF, REFADJ to GND ................................-0.3V to (V
DD
+ 0.3V)
Digital Inputs to GND ...............................................-0.3V to +6V
Digital Outputs (D0–D9, INT) to GND.....-0.3V to (V
LOGIC
+ 0.3V)
Continuous Power Dissipation (T
A
= +70°C)
24-Pin QSOP (derate 9.5mW/°C above +70°C) ..........762mW
28-Pin QSOP (derate 8.0mW/°C above +70°C) ..........667mW
Operating Temperature Ranges
MAX1061_C_ _/MAX1063_C_ _..........................0°C to +70°C
MAX1061_E_ _/MAX1063_E_ _ .......................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
External acquisition or external clock mode
Internal acquisition/internal clock mode
MAX106_A
External acquisition/internal clock mode
External clock mode
-3dB rolloff
SINAD > 56dB
fIN= 125kHz, VIN= 2.5V
P-P
(Note 4)
f
IN1
= 49kHz, f
IN
2
= 52kHz
MAX106_B
No missing codes over temperature
(Note 3)
CONDITIONS
ns50Aperture Delay
ns625t
ACQ
Track/Hold Acquisition Time
µs
3.2 3.6 4.1
2.5 3.0 3.5
3.3
t
CONV
Conversion Time (Note 5)
MHz
3
Full-Power Bandwidth
kHz
250
Full-Linear Bandwidth
dB
-78
Channel-to-Channel Crosstalk
dB
76
IMDIntermodulation Distortion
dB
72
SFDRSpurious-Free Dynamic Range
dB
-72
Total Harmonic Distortion (Including 5th-Order Harmonic)
THD
±0.5
INLRelative Accuracy (Note 2)
Bits
10
RESResolution
dB60SINADSignal-to-Noise Plus Distortion
LSB±0.1
Channel-to-Channel Offset Matching
ppm/°C
±2.0
Gain Temperature Coefficient
LSB
±1
LSB
±1
DNLDifferential Nonlinearity
LSB
±2
Offset Error
LSB
±2
Gain Error
UNITSMIN TYP MAXSYMBOLPARAMETER
Internal acquisition/internal clock mode
External acquisition or external clock mode
<200
ps
<50
Aperture Jitter
MHz0.1 4.8f
CLK
External Clock Frequency
%30 70Duty Cycle
DC ACCURACY (Note 1)
DYNAMIC SPECIFICATIONS (f
IN(sine wave)
= 50kHz, VIN= 2.5V
P-P
, 250ksps, external f
CLK
= 4.8MHz, bipolar input mode)
CONVERSION RATE
MAX1061/MAX1063
250ksps, +3V, 8-/4-Channel, 10-Bit ADCs
with +2.5V Reference and Parallel Interface
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(VDD= V
LOGIC
= +2.7V to +3.6V, COM = GND, REFADJ = VDD, V
REF
= +2.5V, 4.7µF capacitor at REF pin, f
CLK
= 4.8MHz (50% duty
cycle), T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at TA= +25°C.)
CONDITIONS UNITSMIN TYP MAXSYMBOLPARAMETER
0 to 0.5mA output load (Note 7)
To power down the internal reference
For small adjustments
TA= 0°C to +70°C
On-/off-leakage current, VIN= 0 or V
DD
Unipolar, V
COM
= 0
V
1.0
V
DD
+
50mV
V
REF
REF Input Voltage Range
µF
4.7 10
Capacitive Bypass at REF
µF
0.01 1
Capacitive Bypass at REFADJ
mV/mA
0.2
Load Regulation
V
VDD- 1.0
REFADJ High Threshold
mV
±100
REFADJ Input Range
±20
ppm/°CTC
REF
REF Temperature Coefficient
mA
15
REF Short-Circuit Current
V
2.49 2.5 2.51
REF Output Voltage
pF
12
C
IN
Input Capacitance
µA
±0.01 ±1
Multiplexer Leakage Current
V
Analog Input Voltage Range Single Ended and Differential (Note 6)
0V
REF
V
IN
CS = V
DD
I
SOURCE
= 1mA
I
SINK
= 1.6mA
VIN= 0 or V
DD
V
LOGIC
= 2.7V
µA
±0.1 ±1
I
LEAKAGE
Tri-State Leakage Current
V
V
LOGIC
- 0.5
V
OH
Output High Voltage
V
0.4
V
OL
Output Low Voltage
pF
15
C
IN
Input Capacitance
µA
±0.1 ±1
I
IN
Input Leakage Current
mV
200
V
HYS
Input Hysteresis
2.0
CS = V
DD
pF
15
C
OUT
Tri-State Output Capacitance
Bipolar, V
COM
= V
REF
/ 2
-V
REF
/2 +V
REF
/2
V
REF
= 2.5V, f
SAMPLE
= 250ksps
µA
200 300
I
REF
REF Input Current
Shutdown mode
2
V
LOGIC
= 1.8V
V
1.5
V
IH
Input High Voltage
V
LOGIC
= 1.8V
V
0.5
V
IL
Input Low Voltage
V
LOGIC
= 2.7V
0.8
ANALOG INPUTS
INTERNAL REFERENCE
EXTERNAL REFERENCE AT REF
DIGITAL INPUTS AND OUTPUTS
MAX1061/MAX1063
250ksps, +3V, 8-/4-Channel, 10-Bit ADCs with +2.5V Reference and Parallel Interface
4 _______________________________________________________________________________________
TIMING CHARACTERISTICS
(VDD= V
LOGIC
= +2.7V to +3.6V, COM = GND, REFADJ = VDD, V
REF
= +2.5V, 4.7µF capacitor at REF pin, f
CLK
= 4.8MHz (50% duty
cycle), T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at TA= +25°C.)
CONDITIONS UNITSMIN TYP MAXSYMBOLPARAMETER
Shutdown mode
Standby mode
Operating mode, f
SAMPLE
= 250ksps
µA
210
0.9 1.2
mA
2.3 2.6
V
2.7 3.6
V
DD
Analog Supply Voltage
150
ELECTRICAL CHARACTERISTICS (continued)
(VDD= V
LOGIC
= +2.7V to +3.6V, COM = GND, REFADJ = VDD, V
REF
= +2.5V, 4.7µF capacitor at REF pin, f
CLK
= 4.8MHz (50% duty
cycle), T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at TA= +25°C.)
V
LOGIC
Current I
LOGIC
CL= 20pF
210
µA
Power-Supply Rejection PSR VDD= 3V ±10%, full-scale input
±0.4 ±0.9
mV
f
SAMPLE
= 250ksps
Not converting
V
1.8 VDD+ 0.3
V
LOGIC
Digital Supply Voltage
WR to CLK Fall Setup Time
t
CWS
40
ns
nsCLK Pulse Width High
nsCLK Period
t
CH
40
t
CP
208
CLK Pulse Width Low t
CL
40
ns
Data Valid to WR Rise Time
t
DS
40
ns
WR Rise to Data Valid Hold Time
t
DH
0
ns
CLK Fall to WR Hold Time
t
CWH
40
ns
CS to CLK or WR Setup Time
t
CSWS
60
ns
CLK or WR to CS Hold Time
t
CSWH
0
ns
CS Pulse Width
t
CS
100
ns
WR Pulse Width
t
WR
60
ns
t
TC
20 100
ns
(Note 8)
C
LOAD
= 20pF, Figure 1
PARAMETER SYMBOL MIN TYP MAX UNITSCONDITIONS
CS Rise to Output Disable
POWER REQUIREMENTS
Internal reference
Internal reference
External reference
External reference
1.9 2.3
0.5 0.8
I
DD
Positive Supply Current
MAX1061/MAX1063
250ksps, +3V, 8-/4-Channel, 10-Bit ADCs
with +2.5V Reference and Parallel Interface
_______________________________________________________________________________________ 5
Note 1: Tested at VDD= +3V, COM = GND, unipolar single-ended input mode. Note 2: Relative accuracy is the deviation of the analog value at any code from its theoretical value after offset and gain errors have
been removed.
Note 3: Offset nulled. Note 4: On channel is grounded; sine wave applied to off channels. Note 5: Conversion time is defined as the number of clock cycles times the clock period; clock has 50% duty cycle. Note 6: Input voltage range referenced to negative input. The absolute range for the analog inputs is from GND to V
DD
.
Note 7: External load should not change during conversion for specified accuracy. Note 8: When bit 5 is set low for internal acquisition, WR must not return low until after the first falling clock edge of the conversion.
TIMING CHARACTERISTICS (continued)
(VDD= V
LOGIC
= +2.7V to +3.6V, COM = GND, REFADJ = VDD, V
REF
= +2.5V, 4.7µF capacitor at REF pin, f
CLK
= 4.8MHz (50% duty
cycle), T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at TA= +25°C.)
t
TR
20 70
nsC
LOAD
= 20pF, Figure 1
RD Rise to Output Disable RD Fall to Output Data Valid
t
DO
20 70
ns
RD Fall to INT High Delay
t
INT1
100
ns
CS Fall to Output Data Valid
t
DO2
110
ns
C
LOAD
= 20pF, Figure 1
C
LOAD
= 20pF, Figure 1
C
LOAD
= 20pF, Figure 1
PARAMETER SYMBOL MIN TYP MAX UNITSCONDITIONS
HBEN to Output Data Valid t
DO1
20 110
nsC
LOAD
= 20pF, Figure 1
Figure 1. Load Circuits for Enable/Disable Times
DOUT
V
LOGIC
3k
3k
C
LOAD
20pF
DOUT
C
LOAD
20pF
a) HIGH-Z TO VOH AND VOL TO V
OH
b) HIGH-Z TO VOL AND VOH TO V
OL
MAX1061/MAX1063
250ksps, +3V, 8-/4-Channel, 10-Bit ADCs with +2.5V Reference and Parallel Interface
6 _______________________________________________________________________________________
Typical Operating Characteristics
(VDD= V
LOGIC
= +3V, V
REF
= +2.500V, f
CLK
= 4.8MHz, CL= 20pF, TA= +25°C, unless otherwise noted.)
-0.4
-0.2
-0.3
-0.1
0
0.1
0.2
0.3
0.4
0 400200 600 800 1000 1200
INTEGRAL NONLINEARITY
vs. OUTPUT CODE
MAX1061/63 toc01
OUTPUT CODE
INL (LSB)
-0.25
-0.10
-0.15
-0.20
-0.5
0
0.05
0.10
0.15
0.20
0.25
0 400200 600 800 1000 1200
DIFFERENTIAL NONLINEARITY
vs. OUTPUT CODE
MAX1061/63 toc02
OUTPUT CODE
INL (LSB)
0.1 10k101 100 1k 100k 1M
SUPPLY CURRENT
vs. SAMPLE FREQUENCY
MAX1061/63 toc03
f
SAMPLE
(Hz)
I
DD
(µA)
1
10
100
1000
10,000
WITH INTERNAL REFERENCE
WITH EXTERNAL REFERENCE
1.80
1.90
1.85
2.00
1.95
2.05
2.10
2.7 3.0 3.3 3.6
SUPPLY CURRENT vs. SUPPLY VOLTAGE
MAX1061/63 toc04
VDD (V)
I
DD
(mA)
RL = CODE = 1010100000
1.6
1.8
1.7
2.0
1.9
2.1
2.2
-40 10-15 35 60 85
SUPPLY CURRENT vs. TEMPERATURE
MAX1061/63 toc05
TEMPERATURE (°C)
I
DD
(mA)
RL = CODE = 1010100000
880
890
910
900
920
930
STANDBY CURRENT vs. SUPPLY VOLTAGE
MAX1061/63 toc06
V
DD
(V)
STANDBY I
DD
(µA)
2.7 3.33.0 3.6
880
890
910
900
920
930
STANDBY CURRENT vs. TEMPERATURE
MAX1061/63 toc07
TEMPERATURE (°C)
STANDBY I
DD
(µA)
-40 10-15 35 8560
0.50
1.00
0.75
1.25
1.50
2.7 3.0 3.3 3.6
POWER-DOWN CURRENT
vs. SUPPLY VOLTAGE
MAX1061/63 toc08
VDD (V)
POWER-DOWN I
DD
(µA)
0.8
0.9
1.0
1.1
1.2
POWER-DOWN CURRENT
vs. TEMPERATURE
MAX1061/63 toc09
TEMPERATURE (°C)
POWER-DOWN I
DD
(µA)
-40 35-15 10 60 85
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