AD7671AST Analog Devices Inc, AD7671AST Datasheet - Page 11

• Manufacturer Part Number: AD7671AST
• Description: IC ADC 16BIT CMOS 1MSPS 48-LQFP
• Manufacturer: Analog Devices Inc
• Series: PulSAR®r

Specifications of AD7671AST

• Rohs Status: RoHS non-compliant
• Number Of Bits: 16
• Sampling Rate (per Second): 1M
• Data Interface: Serial, Parallel
• Number Of Converters: 1
• Power Dissipation (max): 125mW
• Voltage Supply Source: Analog and Digital
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 48-LQFP
• For Use With: EVAL-AD7671CBZ - BOARD EVALUATION FOR AD7671

CIRCUIT INFORMATION
The AD7671 is a fast, low power, single-supply, precise 16-bit
analog-to-digital converter (ADC). The AD7671 features different
modes to optimize performances according to the applications.
In Warp Mode, the AD7671 is capable of converting 1,000,000
samples per second (1 MSPS).
The AD7671 provides the user with an on-chip track-and-hold,
successive approximation ADC that does not exhibit any pipeline
or latency, making it ideal for multiple multiplexed channel
applications.
REV. B
100000
TPC 13. Typical Delay vs. Load Capacitance C
10000
0.001
1000
0.01
100
TPC 14. Operating Currents vs. Sample Rate
0.1
10
50
40
30
20
10
0
0
1
0
DVDD, WARP/NORMAL
AVDD, WARP/NORMAL
10
AVDD, IMPULSE
50
100
SAMPLING RATE – SPS
DVDD, IMPULSE
C
1000
L
100
– pF
OVDD, ALL MODES
10000
150
100000
1000000
200
L
–11–
It is specified to operate with both bipolar and unipolar input
ranges by changing the connection of its input resistive scaler.
The AD7671 can be operated from a single 5 V supply and be
interfaced to either 5 V or 3 V digital logic. It is housed in a
48-lead LQFP package or a 48-lead LFCSP package that com-
bines space savings and flexible configurations as either serial
or parallel interface. The AD7671 is a pin-to-pin compatible
upgrade of the AD7665 and AD7664.
TPC 15. Power-Down Operating Currents vs. Temperature
TPC 16. +FS, Offset, and –FS vs. Temperature
–10
1000
900
800
700
600
500
400
300
200
100
10
–2
–4
–6
–8
8
6
4
2
0
–55
0
–55
+FS
–35
–35
–FS
–15
–15
5
TEMPERATURE – C
OFFSET
TEMPERATURE – C
5
25
25
45
45
65
OVDD
65
85
AD7671
DVDD
105
85
AVDD
125
105