19-3157; Rev 4; 10/08
8-/4-/2-Channel, 14-Bit, Simultaneous-Sampling ADCs
with ±10ꢀ, ±±ꢀ, and 0 to +±ꢀ Analog Input Ranges
80/4–MAX1326
General Description
Features
The MAX1316–MAX1318/MAX1320–MAX1322/MAX1324–
MAX1326 14-bit, analog-to-digital converters (ADCs) offer
two, four, or eight independent input channels.
Independent track/hold (T/H) circuitry provides simultane-
ous sampling for each channel. The MAX1316/
MAX1317/MAX1318 have a 0 to +5V input range with
6.0V fault-tolerant inputs. The MAX1320/MAX1321/
MAX1322 have a 5V input range with 16.5V fault-toler-
ant inputs. The MAX1324/MAX1325/MAX1326 have a
10V input range with 16.5V fault-tolerant inputs. These
ADCs convert two channels in 2µs, and up to eight chan-
nels in 3.8µs, and have an 8-channel throughput of
250ksps per channel. Other features include a 10MHz
T/H input bandwidth, internal clock, internal (+2.5V) or
external (+2.0V to +3.0V) reference, and power-
saving modes.
♦ 8-/4-/2-Channel, 14-Bit ADCs
1ꢀ. ꢁLB ꢂIꢁ, 1 ꢁLB DIꢁ, Iꢃ oissinꢄ Cꢃꢅes
90ꢅBc LFDR, -86ꢅBc THD, 76ꢀ.ꢅB LꢂIAD, 77ꢅB
LIR at 100kHz ꢂnput
♦ On-Chip T/H Circuit fꢃr Each Channel
10ns Aperture Delay
.0ps Channel-tꢃ-Channel T/H oatchinꢄ
♦ Fast Cꢃnversiꢃn Time
One Channel in 1ꢀ6µs
Twꢃ Channels in 1ꢀ9µs
Fꢃur Channels in 2ꢀ.µs
Eiꢄht Channels in 3ꢀ7µs
♦ Hiꢄh Thrꢃuꢄhput
.26ksps/ch fꢃr One Channel
4..ksps/ch fꢃr Twꢃ Channels
3.7ksps/ch fꢃr Fꢃur Channels
2.0ksps/ch fꢃr Eiꢄht Channels
A 16.6MHz, 14-bit, bidirectional, parallel interface pro-
vides the conversion results and accepts digital config-
uration inputs.
♦ Flexible ꢂnput Ranꢄes
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 50mA total supply current.
0 tꢃ +.V (oAX1316/oAX1317/oAX1318)
.V (oAX1320/oAX1321/oAX1322)
10V (oAX1324/oAX132./oAX1326)
These devices come in a 48-pin LQFP package and oper-
ate over the extended -40°C to +85°C temperature range.
♦ Iꢃ Calibratiꢃn Ieeꢅeꢅ
♦ 14-Bit, Hiꢄh-Lpeeꢅ, Parallel ꢂnterface
♦ ꢂnternal ꢃr External Clꢃck
Applications
Multiphase Motor Control
♦ +2ꢀ.V ꢂnternal Reference ꢃr +2ꢀ0V tꢃ +3ꢀ0V
External Reference
Power-Grid Synchronization
♦ +.V Analꢃꢄ Lupply, +3V tꢃ +.V Diꢄital Lupply
46mA Analꢃꢄ Lupply Current (typ)
Power-Factor Monitoring and Correction
Vibration and Waveform Analysis
1ꢀ6mA Diꢄital Lupply Current (max)
Lhutꢅꢃwn anꢅ Pꢃwer-Lavinꢄ oꢃꢅes
♦ 48-Pin ꢁQFP Packaꢄe (7mm x 7mm Fꢃꢃtprint)
Selector Guide
Ordering Information
PART
ꢂIPUT RAIGE (V) CHAIIEꢁ COUIT
MAX1316ECM
MAX1317ECM
MAX1318ECM
MAX1320ECM
MAX1321ECM
MAX1322ECM
MAX1324ECM
MAX1325ECM
MAX1326ECM
0 to +5
8
4
2
8
4
2
8
4
2
PART
TEoP RAIGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PꢂI-PACKAGE
48 LQFP
48 LQFP
48 LQFP
48 LQFP
48 LQFP
48 LQFP
48 LQFP
48 LQFP
48 LQFP
0 to +5
oAX1316ECM
oAX1317ECM
oAX1318ECM
oAX1320ECM
oAX1321ECM
oAX1322ECM
oAX1324ECM
oAX132.ECM
oAX1326ECM
0 to +5
5
5
5
10
10
10
Pin Cꢃnfiꢄuratiꢃns anꢅ Typical Operatinꢄ Circuits appear at
enꢅ ꢃf ꢅata sheetꢀ
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1
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