AD7880BR Analog Devices Inc, AD7880BR Datasheet - Page 4

• Manufacturer Part Number: AD7880BR
• Description: A/D Converter (A-D) IC
• Manufacturer: Analog Devices Inc

Specifications of AD7880BR

• Package/case: 24-SOIC
• Features: Single 5V Supply, Low?Power Shutdown
• Interface Type: Parallel
• Number Of Bits: 12
• Mounting Type: Surface Mount
• Supply Voltage: 5V
• Rohs Status: RoHS non-compliant
• Sampling Rate (per Second): 66k
• Data Interface: Parallel
• Number Of Converters: 1
• Power Dissipation (max): 50mW
• Voltage Supply Source: Single Supply
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 24-SOIC (0.300", 7.50mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

AD7880
Model
AD7880BN –40 C to +85 C
AD7880BQ –40 C to +85 C
AD7880CN –40 C to +85 C
AD7880CQ –40 C to +85 C
AD7880BR
AD7880CR –40 C to +85 C
*N = Plastic DIP; Q = Cerdip; R = SOIC (Small Outline Integrated Circuit).
Pin
No.
10
11 . . . 22
23
24
1
2
3
4
5
6
7
8
9
Temperature
Range
–40 C to +85 C
Pin
Mnemonic Function
V
V
AGND
V
CS
CONVST
RD
BUSY
CLKIN
DGND
DB0–DB11 Three-State Data Outputs. These become active when CS and RD are brought low.
MODE
V
INA
INB
REF
DD
ORDERING GUIDE
Analog Input.
Analog Input.
Analog Ground.
Voltage Reference Input. This is normally tied to V
Chip Select. Active Low Logic input. The device is selected when this input is active.
Convert Start. A low to high transition on this input puts the track/hold into hold mode and starts con-
version. This input is asynchronous to the CLKIN and is independent of CS and RD.
Read. Active Low Logic Input. This input is used in conjunction with CS low to enable data outputs.
Active Low Logic Output. This status line indicates converter status. BUSY is low during conversion.
Clock Input. TTL-compatible logic input. Used as the clock source for the A/D converter. The mark/
space ratio of the clock can vary from 40/60 to 60/40.
Digital Ground.
MODE Input. This input is used to put the device into the power save mode (MODE = 0 V). During
normal operation, the MODE input will be a logic high (MODE = V
Power Supply. This is nominally +5 V.
Full-Scale
Error
(LSBs)
15
15
15
5
5
5
Bipolar
Zero
Error
(LSBs)
10
10
5
5
10
5
PIN FUNCTION DESCRIPTION
Package
Option*
N-24
Q-24
N-24
Q-24
R-24
R-24
–4–
DD
.
CONVST
AGND
CLKIN
DGND
BUSY
V
V
V
DB0
DB1
REF
PIN CONFIGURATION
INA
INB
RD
CS
10
11
12
1
2
3
4
5
6
7
8
9
(Not to Scale)
DD
AD7880
TOP VIEW
).
24
23
22
21
20
19
18
17
16
15
14
13
DB6
DB5
DB4
MODE
DB10
DB9
DB7
DB3
DB2
V
DB11
DB8
DD
REV. 0