MAX1304ECM+T Maxim Integrated Products, MAX1304ECM+T Datasheet - Page 15

• Manufacturer Part Number: MAX1304ECM+T
• Description: IC ADC 12BIT 8CH 4MSPS 48LQFP
• Manufacturer: Maxim Integrated Products

Specifications of MAX1304ECM+T

• Number Of Bits: 12
• Sampling Rate (per Second): 3.65M
• Data Interface: Parallel
• Number Of Converters: 1
• Power Dissipation (max): 1.82W
• Voltage Supply Source: Analog and Digital
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 48-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

8-/4-/2-Channel, 12-Bit, Simultaneous-Sampling ADCs
Figure 1. Digital Load Test Circuit
MAX1304
MAX1308
MAX1312
DEVICE PIN
with ±10V, ±5V, and 0 to +5V Analog Input Ranges
44
45
46
47
48
—
MAX1305
MAX1309
MAX1313
11, 12
9, 10,
PIN
44
45
46
47
48
______________________________________________________________________________________
100pF
MAX1306
MAX1310
MAX1314
10, 11, 12
7, 8, 9,
44
45
46
47
48
V
DD
I
I
OL
OH
CONVST
= 1.6mA
NAME
= 0.8mA
SHDN
CLK
I.C.
Chip-Select Input. Pulling
high places D0–D11 in high-impedance mode.
Conversion Start Input. Driving CONVST high initiates the conversion
process. The analog inputs are sampled on the rising edge of CONVST.
External Clock Input. For external clock operation, connect INTCLK/
to AGND and drive CLK with an external clock signal from 100kHz to 20MHz.
For internal clock operation, connect INTCLK/
CLK to DGND.
Shutdown Input. Driving SHDN high initiates device shutdown. Connect
SHDN to DGND for normal operation.
Active-Low Analog-Input Channel-Shutdown Input. Drive
power down analog inputs that are not selected for conversion in the
configuration register. Drive
channels regardless of whether they are selected for conversion in the
configuration register. See the Channel Shutdown (
information.
Internally connected. Connect I.C. to AGND.
1.6V
The MAX1304–MAX1306/MAX1308–MAX1310/MAX1312–
MAX1314 are 12-bit ADCs. The devices offer 8, 4, or 2
independently selectable input channels, each with
dedicated T/H circuitry. Simultaneous sampling of all
active channels preserves relative phase information
making these devices ideal for motor control and power
monitoring. Three input ranges are available, 0 to +5V,
±5V and ±10V. The 0 to +5V devices provide ±6V fault-
tolerant inputs. The ±5V and ±10V devices provide
±16.5V fault-tolerant inputs. Two-channel conversion
results are available in 0.9µs. Conversion results from
all eight channels are available in 1.98µs. The 8-chan-
nel throughput is 456ksps per channel. Internal or
external reference and clock capability offer great flexi-
bility, and ease of use. A write-only configuration regis-
ter can mask out unused channels and a shutdown
feature reduces power. A 20MHz, 12-bit, parallel data
bus outputs the conversion results. Figure 2 shows the
functional diagram of these ADCs.
low activates the digital interface. Forcing
Pin Description (continued)
FUNCTION
high to power up all analog input
Detailed Description
to AV
) section for more
DD
and connect
low to
15