AD9058

Features:

Two Matched ADCs on Single Chip
50 MSPS Conversion Speed
On-Board Voltage Reference
Low Power (<1W)
Low Input Capacitance (10 pF)
65 V Power Supplies
Flexible Input Range


Application

Quadrature Demodulation for Communications
Digital Oscilloscopes
Electronic Warfare
Radar


Pinout




Specifications

Analog Input  . . . . . . . . . . . . . . . . . . . . . . . . . 1.5 V to +2.5 V
+V_S  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +6 V
V_S  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +0.8 V to 6 V²
Digital Inputs  . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 V to +V_S
Digital Output Current  . . . . . . . . . . . . . . . . . . . . . . . .  20 mA
Voltage Reference Current  . . . . . . . . . . . . . . . . . . . . . 53 mA
+V_REF  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +2.5 V
V_REF  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5
Operating Temperature Range
AD9058JD/JJ/KD/KJ  . . . . . . . . . . . . . . . . . . .     0°C to +70°C
Maximum Junction Temperature3
AD9058JD/JJ/KD/KJ  . . . . . . . . . . . . . . . . . . . . . . . .    +175°C
Storage Temperature Range  . . . . . . . . . . .65°C to +150°C
Lead Temperature (Soldering, 10 sec)  . . . . . . . . . . . +300°C


Description

The AD9058 combines two independent high performance 8-bit analog-to-digital converters (ADCs) on a single monolithic IC. Combined with an optional onboard voltage reference, the AD9058 provides a cost effective alternative for systems requiring two or more ADCs.

Dynamic performance (SNR, ENOB) is optimized to provide up to 50 MSPS conversion rates. The unique architecture results in low input capacitance while maintaining high performance and low power (<0.5 watt/channel). Digital inputs and outputs are TTL compatible. Performance has been optimized for an analog input of 2 V p-p (± 1 V; 0 V to +2 V). Using the onboard +2 V voltage reference, the AD9058 can be set up for unipolar positive operation (0 V to +2 V). This internal voltage reference can drive both ADCs. Commercial (0°C to +70°C) and military (55°C to +125°C) temperature range parts are available. Parts are supplied in hermetic 48-lead DIP and 44-lead "J" lead packages.