Rainbow Electronics MAX1326 - Manual

General Description
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.
A 16.6MHz, 14-bit, bidirectional, parallel interface pro-
vides the conversion results and accepts digital config-
uration 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 50mA total supply current.
These devices come in a 48-pin TQFP package and oper-
ate over the extended -40°C to +85°C temperature range.
Applications
Multiphase Motor Control
Power-Grid Synchronization
Power-Factor Monitoring and Correction
Vibration and Waveform Analysis
Features
♦ 8-/4-/2-Channel, 14-Bit ADCs
±1.5 LSB INL, ±1 LSB DNL, No Missing Codes
90dBc SFDR, -86dBc THD, 76.5dB SINAD, 77dB
SNR at 100kHz Input
♦
On-Chip T/H Circuit for Each Channel
10ns Aperture Delay
50ps Channel-to-Channel T/H Matching
♦
Fast Conversion Time
One Channel in 1.6µs
Two Channels in 1.9µs
Four Channels in 2.5µs
Eight Channels in 3.7µs
♦
High Throughput
526ksps/ch for One Channel
455ksps/ch for Two Channels
357ksps/ch for Four Channels
250ksps/ch for Eight Channels
♦ Flexible Input Ranges
0 to +5V (MAX1316/MAX1317/MAX1318)
±5V (MAX1320/MAX1321/MAX1322)
±10V (MAX1324/MAX1325/MAX1326)
♦
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
46mA Analog Supply Current (typ)
1.6mA Digital Supply Current (max)
Shutdown and Power-Saving Modes
♦
48-Pin TQFP Package (7mm ✕ 7mm Footprint)
MAX1316–MAX1318/MAX1320–MAX1322/MAX1324–MAX1326
8-/4-/2-Channel, 14-Bit, Simultaneous-Sampling ADCs
with ±10V, ±5V, and 0 to +5V Analog Input Ranges
________________________________________________________________ Maxim Integrated Products 1
Ordering Information
Selector Guide
19-3157; Rev 2; 8/04
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.
Pin Configurations and Typical Operating Circuits appear at
end of data sheet.
*Future product—contact factory for availability.
PART TEMP RANGE PIN-PACKAGE
MAX1316 ECM -40 °C to +85°C 48 TQFP
MAX1317 ECM -40 °C to +85°C 48 TQFP
MAX1318 ECM -40 °C to +85°C 48 TQFP
MAX1320 ECM -40 °C to +85°C 48 TQFP
MAX1321 ECM -40 °C to +85°C 48 TQFP
MAX1322 ECM -40 °C to +85°C 48 TQFP
MAX1324 ECM -40 °C to +85°C 48 TQFP
MAX1325 ECM -40 °C to +85°C 48 TQFP
MAX1326 ECM -40 °C to +85°C 48 TQFP
PART INPUT RANGE (V) CHANNEL COUNT
MAX1316ECM 0 to +5 8
MAX1317ECM 0 to +5 4
MAX1318ECM 0 to +5 2
MAX1320ECM ±5 8
MAX1321ECM ±5 4
MAX1322ECM ±5 2
MAX1324ECM ±10 8
MAX1325ECM ±10 4
MAX1326ECM ±10 2