ad7886kp Analog Devices, Inc., ad7886kp Datasheet - Page 4

• Manufacturer Part Number: ad7886kp
• Description: Lc2mos 12-bit, 750 Khz/1 Mhz, Sampling Adc
• Manufacturer: Analog Devices, Inc.

DIP Pin
Number
Power Supply
10 & 19
15 & 24
16 & 23
5
Analog and Reference Inputs
17 & 18
20
21
22
Interface and Control
1–4,
6–9,
25–28
11
12
13
14
AD7886
Mnemonic
V
V
AGND
DGND
VIN
+5REF
SUM
V
DB7–DB4
DB3–DB0
DB11–DB8
BUSY
CS
RD
CONVST
DD
SS
REF
Model
AD7886JD
AD7886KD
AD7886JP
AD7886KP
AD7886BD
AD7886TD
NOTES
1Contact your sales office for availability of AD7886BD, AD7886TD and 1 MHz version.
2
3
Analog Devices reserves the right to ship J-Leaded Ceramic Chip Carrier (JLCCC) in lieu of PLCC packages.
D = Ceramic DIP; P = Plastic Leaded Chip Carrier.
1, 2
Description
Positive Power Supply, +5 V
Negative Power Supply, –5 V
Analog Ground. Both AGND pins must be tied together.
Digital Ground.
Analog Inputs, VIN1 and VIN2. The part can be pin strapped for any one of three analog input ranges;
Range
0 V to 5 V
0 V to 10 V
+5 V Reference input. This input is used in conjunction with SUM and V
+5 V reference to –3.5 V, the required reference for the part (see Figure 2).
Summing Point. This input is used in conjunction with +5REF and V
+5 V reference to –3.5 V, the required reference for the part (see Figure 2).
Voltage Reference Input. The AD7886 is specified with V
Three-state data outputs.
These outputs are controlled by CS and RD. DB11 is the Most Significant Bit (MSB).
BUSY Output indicates converter status. BUSY is low during conversion.
Chip Select Input. The device is selected when this input is low.
Read Input. This active low signal, in conjunction with CS, is used to enable the output data three-state
drivers.
Conversion Start Input. This input is used to start conversion.
5 V
Temperature
Range
0 C to +70 C
0 C to +70 C
0 C to +70 C
0 C to +70 C
–40 C to +85 C
–55 C to +125 C
Pin Strap
Connect VIN2 to VIN1
Connect VIN2 to GND
Connect VIN2 to +5 V
PIN FUNCTION DESCRIPTION
ORDERING GUIDE
5%. Both V
5%. Both V
–4–
SNR
(dBs)
65
67
65
67
67
65
DD
SS
pins must be tied together.
pins must be tied together.
Integral
Nonlinearity
(LSBs)
2.0
2.0
2.0
2.0
Signal Input
VIN1
VIN1 & VIN2
VIN1
REF
= –3.5 V.
REF
Package
Option
D-28
D-28
P-28A
P-28A
D-28
D-28
REF
inputs to scale an external
inputs to scale an external
2
2
3
REV. B