19-3592; Rev 0; 2/05
526ksps, Single-Channel,
14-Bit, Parallel-Interface ADCs
General Description
The MAX1319/MAX1323/MAX1327 are single-channel,
14-bit, 526ksps analog-to-digital converters (ADCs) with
±2 LSB INL and ±1 LSB DNL with no missing codes. The
MAX1323 has a ±5V input range with ±16.5V fault-toler-
ant inputs. The MAX1327 has a ±10V input range with
±16.5V fault-tolerant inputs and the MAX1319 has a 0 to
+5V input range with ±6.0V fault-tolerant inputs. Other
features include a 10MHz track/hold (T/H) input band-
width, internal clock, internal (+2.5V) or external (+2.0V
to +3.0V) reference, and shutdown mode.
A 16.6MHz, 14-bit, parallel interface provides the con-
version results and accepts digital configuration inputs.
These devices operate from a +4.75V to +5.25V analog
supply and a separate +2.7V to +5.25V digital supply,
and consume less than 35mA total supply current. For
multichannel applications, refer to the MAX1316–
MAX1318/MAX1320–MAX1322/MAX1324–MAX1326
data sheet.
These devices come in a 48-pin TQFP package and
operate over the extended -40°C to +85°C tempera-
ture range.
Features
♦
14-Bit ADCs
526ksps
±2 LSB INL, ±1 LSB DNL, No Missing Codes
90dBc SFDR, -86dBc THD, 76.5dB SINAD, 77dB
SNR at 100kHz Input
♦
Fast 1.6µs Conversion Time
♦
Flexible Input Ranges
0 to +5V (MAX1319)
±5V (MAX1323)
±10V (MAX1327)
♦
No Calibration Needed
♦
14-Bit High-Speed Parallel Interface
♦
Internal or External Clock
♦
+2.5V Internal Reference or +2.0V to +3.0V
External Reference
♦
+5V Analog Supply, +3V to +5V Digital Supply
32mA Analog Supply Current (typ)
550µA Digital Supply Current (typ)
Shutdown and Power-Saving Modes
♦
48-Pin TQFP Package (7mm x 7mm Footprint)
MAX1319/MAX1323/MAX1327
Applications
Vibration and Waveform Analysis
Data-Acquisition Systems
Industrial Process Control and Automation
TOP VIEW
ALLON
SHDN
CLK
CONVST
CS
I.C.2
RD
EOLC
EOC
DGND
DV
DD
D13
48
47
46
45
44
43
42
41
40
39
38
Pin Configuration
Ordering Information/
Selector Guide
PART
PIN-PACKAGE
INPUT
RANGE (V)
0 to +5
±5
PKG
CODE
C48-6
C48-6
MAX1319ECM
48 TQFP
MAX1323ECM
48 TQFP
±10
MAX1327ECM
48 TQFP
C48-6
Note:
All devices operate over the -40°C to +85°C temperature
range.
AV
DD
AGND
AGND
A
IN
I.C.
MSV
I.C.
I.C.
I.C.
I.C.
I.C.
I.C.
37
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
36
35
34
33
32
31
30
29
28
27
26
25
MAX1319
MAX1323
MAX1327
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
INTCLK/EXTCLK
AGND
AV
DD
Typical Operating Circuits appear at end of data sheet.
________________________________________________________________
Maxim Integrated Products
AGND
AV
DD
REF
MS
REF
REF+
COM
REF-
AGND
D0
TQFP
1
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.
526ksps, Single-Channel,
14-Bit, Parallel-Interface ADCs
MAX1319/MAX1323/MAX1327
ABSOLUTE MAXIMUM RATINGS
AV
DD
to AGND .........................................................-0.3V to +6V
DV
DD
to DGND.........................................................-0.3V to +6V
AGND to DGND.....................................................-0.3V to +0.3V
CH0, I.C. to AGND (MAX1319)..............................................±6.0V
CH0, I.C. to AGND (MAX1323/MAX1327)...........................±16.5V
INTCLK/EXTCLK to AGND .......................-0.3V to (AV
DD
+ 0.3V)
EOC, EOLC, WR,
I.C.2,
RD,
CS
to DGND.........................................-0.3V to (DV
DD
+ 0.3V)
CONVST, CLK, SHDN,
ALLON to DGND..................................-0.3V to (DV
DD
+ 0.3V)
MSV, REF
MS
, REF to AGND.....................-0.3V to (AV
DD
+ 0.3V)
REF+, COM, REF- to AGND.....................-0.3V to (AV
DD
+ 0.3V)
D0–D13 to DGND ....................................-0.3V to (DV
DD
+ 0.3V)
Maximum Current into Any Pin Except AV
DD
, DV
DD
,
AGND, DGND ...............................................................±50mA
Continuous Power Dissipation (T
A
= +70°C)
TQFP (derate 22.7mW/°C above +70°C) ...................1818mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°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.
ELECTRICAL CHARACTERISTICS
(AV
DD
= +5V, DV
DD
= +3V, AGND = DGND = 0V, V
REF
= V
REFMS
= +2.5V (external reference), C
REF
= C
REFMS
= 0.1µF, C
REF+
=
C
REF-
= 0.1µF, C
REF+-to-REF-
= 2.2µF || 0.1µF, C
COM
= 2.2µF || 0.1µF, C
MSV
= 2.2µF || 0.1µF (MAX1319; unipolar device), MSV =
AGND (MAX1323/MAX1327; bipolar devices), f
CLK
= 10MHz 50% duty, t
ACQ
= 200ns, t
QUIET
= 10ns, INTCLK/EXTCLK = AGND
(external clock), SHDN = DGND, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETER
STATIC PERFORMANCE (Note 1)
Resolution
Integral Nonlinearity
Differential Nonlinearity
Offset Error
Offset Drift
Gain Error
Gain Temperature Coefficient
DYNAMIC PERFORMANCE (at f
IN
= 100kHz, -0.4dBFS)
Signal-to-Noise Ratio
Signal-to-Noise and Distortion
Ratio
Spurious Free Dynamic Range
Total Harmonic Distortion
ANALOG INPUTS (CH0–CH7)
MAX1319
Input Voltage Range
MAX1323
MAX1327
0
-5
-10
+5
+5
+10
V
SNR
SINAD
SFDR
THD
Unipolar
Bipolar
Unipolar
Bipolar
74.5
75
74.5
75
83
76
76.5
76.0
76.5
93
-90
-83
dB
dB
dBc
dBc
N
INL
DNL
(Note 2)
No missing codes
Unipolar device
Bipolar devices
Unipolar device
Bipolar devices
(Note 3)
4
4
±10
3
±49
14
±0.8
±0.5
±2
±1
±33
±33
Bits
LSB
LSB
LSB
ppm/°C
LSB
ppm/°C
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
2
_______________________________________________________________________________________
526ksps, Single-Channel,
14-Bit, Parallel-Interface ADCs
ELECTRICAL CHARACTERISTICS (continued)
(AV
DD
= +5V, DV
DD
= +3V, AGND = DGND = 0V, V
REF
= V
REFMS
= +2.5V (external reference), C
REF
= C
REFMS
= 0.1µF, C
REF+
=
C
REF-
= 0.1µF, C
REF+-to-REF-
= 2.2µF || 0.1µF, C
COM
= 2.2µF || 0.1µF, C
MSV
= 2.2µF || 0.1µF (MAX1319; unipolar device), MSV =
AGND (MAX1323/MAX1327; bipolar devices), f
CLK
= 10MHz 50% duty, t
ACQ
= 200ns, t
QUIET
= 10ns, INTCLK/EXTCLK = AGND
(external clock), SHDN = DGND, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETER
SYMBOL
MAX1319
Input Current
MAX1323
MAX1327
MAX1319
Input Resistance
Input Capacitance
TRACK/HOLD
External Clock Throughput Rate
Internal Clock Throughput Rate
Small-Signal Bandwidth
Full-Power Bandwidth
Aperture Delay
Aperture Jitter
INTERNAL REFERENCE
REFMS Voltage
REF Voltage
REF Temperature Coefficient
EXTERNAL REFERENCE (REF
MS
and REF externally driven)
Input Current
REFMS Input Voltage Range
REF Input Voltage Range
REF Input Capacitance
REFMS Input Capacitance
V
REFMS
V
REF
Unipolar device
-250
2.0
2.0
2.5
2.5
15
15
+250
3.0
3.0
µA
V
V
pF
pF
V
REFMS
V
REF
2.475
2.475
2.500
2.500
30
2.525
2.525
V
V
ppm/°C
526
526
10
10
16
50
ksps
ksps
MHz
MHz
ns
ps
RMS
MAX1323
MAX1327
CONDITIONS
V
IN
= +5V
V
IN
= 0V
V
IN
= +5V
V
IN
= -5V
V
IN
= +10V
V
IN
= -10V
-1.13
-1.16
-0.157
MIN
TYP
0.54
-0.12
0.29
-0.87
0.56
-0.85
7.58
8.66
14.26
15
pF
kΩ
0.74
0.39
mA
MAX
0.72
UNITS
MAX1319/MAX1323/MAX1327
_______________________________________________________________________________________
3
526ksps, Single-Channel,
14-Bit, Parallel-Interface ADCs
MAX1319/MAX1323/MAX1327
ELECTRICAL CHARACTERISTICS (continued)
(AV
DD
= +5V, DV
DD
= +3V, AGND = DGND = 0V, V
REF
= V
REFMS
= +2.5V (external reference), C
REF
= C
REFMS
= 0.1µF, C
REF+
=
C
REF-
= 0.1µF, C
REF+-to-REF-
= 2.2µF || 0.1µF, C
COM
= 2.2µF || 0.1µF, C
MSV
= 2.2µF || 0.1µF (MAX1319; unipolar device), MSV =
AGND (MAX1323/MAX1327; bipolar devices), f
CLK
= 10MHz 50% duty, t
ACQ
= 200ns, t
QUIET
= 10ns, INTCLK/EXTCLK = AGND
(external clock), SHDN = DGND, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
0.7 x
DV
DD
0.3 x
DV
DD
15
C
IN
I
IN
V
IN
= 0V or DV
DD
0.7 x
AV
DD
0.3 x
AV
DD
15
±1
TYP
MAX
UNITS
DIGITAL INPUTS (D0–D7,
RD, CS,
CLK, SHDN, CONVST)
Input-Voltage High
Input-Voltage Low
Input Hysteresis
Input Capacitance
Input Current
V
IH
V
IL
V
V
mV
pF
µA
CLOCK-SELECT INPUT (INTCLK/EXTCLK)
Input-Voltage High
Input-Voltage Low
DIGITAL OUTPUTS (D0–D13,
EOC, EOLC)
Output-Voltage High
Output-Voltage Low
Tri-State Leakage Current
Tri-State Output Capacitance
POWER SUPPLIES
Analog Supply Voltage
Digital Supply Voltage
Analog Supply Current
Digital Supply Current
Shutdown Current
Power-Supply Rejection Ratio
PSRR
AV
DD
DV
DD
I
AVDD
I
DVDD
V
SHDN
= DV
DD
V
RD
= DV
DD
, V
SHDN
= DV
DD
AV
DD
= +4.75V to +5.75V (Note 5)
0.1
50
MAX1319
MAX1323/MAX1327
4.75
2.70
32
28
5.25
5.25
36
32
700
10
2
V
V
mA
µA
µA
µA
dB
V
OH
V
OL
ISOURCE = 0.8mA
ISINK = 1.6mA
RD
≥
V
IH
or
CS
≥
V
IH
RD
≥
V
IH
or
CS
≥
V
IH
DV
DD
-
0.6
0.4
0.06
15
1
V
V
µA
pF
V
V
4
_______________________________________________________________________________________
526ksps, Single-Channel,
14-Bit, Parallel-Interface ADCs
TIMING CHARACTERISTICS (Figures 3, 4, 5, and 6) (Tables 1, 2)
PARAMETER
Conversion Time
CONVST Pulse-Width Low
(Acquisition Time)
CS
Pulse Width
RD
Pulse-Width Low
CS
to
RD
Setup Time
RD
to
CS
Hold Time
Data Access Time
(RD Low to Valid Data)
Bus Relinquish Time (RD High)
EOC
Pulse Width
External CLK Period
External CLK High Period
External CLK Low Period
External Clock Frequency
Internal Clock Frequency
CONVST High to CLK Edge
EOC
Low to
RD
t
19
t
20
(Note 7)
20
0
SYMBOL
Internal clock
t
CONV
External clock (Figure 4)
(Note 4)
0.16
30
30
0
0
30
30
Internal clock
t
12
t
16
t
17
t
18
Logic sensitive to rising edges
Logic sensitive to rising edges
(Note 6)
External clock (Figure 4)
90
20
20
0.1
10
12.5
80
1
CONDITIONS
MIN
TYP
1.6
16
100
MAX
1.8
UNITS
ns
Clock
cycles
µs
ns
ns
ns
ns
ns
ns
ns
Clock
cycle
ns
ns
ns
MHz
MHz
ns
ns
MAX1319/MAX1323/MAX1327
t
ACQ
t
2
t
3
t
8
t
9
t
10
t
11
Note 1:
For the MAX1319, V
IN
= 0 to +5V. For the MAX1323, V
IN
= -5V to +5V. For the MAX1327, V
IN
= -10V to +10V.
Note 2:
INL is defined as 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:
CONVST must remain low for at least the acquisition period.
Note 5:
Defined as the change in positive full scale caused by a ±5% variation in the nominal supply voltage.
Note 6:
Minimum clock frequency is limited only by the internal T/H droop rate. Limit the time between the falling edge of CONVST
to the falling edge of EOLC to a maximum of 0.25ms.
Note 7:
To avoid T/H droop degrading the sampled analog input signals, the first clock pulse should occur within 10µs of the rising
edge of CONVST and have a minimum clock frequency of 100kHz.
_______________________________________________________________________________________
5
聊聊、笑笑、闹闹
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
