diff --git a/lambdalib/analoglib/__init__.py b/lambdalib/analoglib/__init__.py
index ed40b80..29a5aec 100644
--- a/lambdalib/analoglib/__init__.py
+++ b/lambdalib/analoglib/__init__.py
@@ -1,3 +1,6 @@
 from .la_pll.la_pll import PLL
+from .la_ring.la_ring import Ring
 
-__all__ = ['PLL']
+__all__ = ['PLL',
+           'Ring'
+           ]
diff --git a/lambdalib/analoglib/la_ring/la_ring.py b/lambdalib/analoglib/la_ring/la_ring.py
new file mode 100644
index 0000000..a26b9dd
--- /dev/null
+++ b/lambdalib/analoglib/la_ring/la_ring.py
@@ -0,0 +1,30 @@
+from lambdalib.lambdalib import Lambda
+from lambdalib.stdlib import Inv
+from lambdalib.stdlib import Buf
+from lambdalib.stdlib import Nand2
+from lambdalib.stdlib import Nand3
+from lambdalib.stdlib import Nand4
+from lambdalib.stdlib import Nor2
+from lambdalib.stdlib import Nor3
+from lambdalib.stdlib import Nor4
+
+
+class Ring(Lambda):
+    def __init__(self):
+        name = 'la_ring'
+        super().__init__(name, __file__)
+
+        # deps
+        self.add_depfileset(Inv(), depfileset='rtl', fileset='rtl')
+        self.add_depfileset(Buf(), depfileset='rtl', fileset='rtl')
+        self.add_depfileset(Nand2(), depfileset='rtl', fileset='rtl')
+        self.add_depfileset(Nand3(), depfileset='rtl', fileset='rtl')
+        self.add_depfileset(Nand4(), depfileset='rtl', fileset='rtl')
+        self.add_depfileset(Nor2(), depfileset='rtl', fileset='rtl')
+        self.add_depfileset(Nor3(), depfileset='rtl', fileset='rtl')
+        self.add_depfileset(Nor4(), depfileset='rtl', fileset='rtl')
+
+
+if __name__ == "__main__":
+    d = Ring()
+    d.write_fileset(f"{d.name}.f", fileset="rtl")
diff --git a/lambdalib/analoglib/la_ring/rtl/la_ring.v b/lambdalib/analoglib/la_ring/rtl/la_ring.v
new file mode 100644
index 0000000..418fd74
--- /dev/null
+++ b/lambdalib/analoglib/la_ring/rtl/la_ring.v
@@ -0,0 +1,62 @@
+/**************************************************************************
+ * Function: Generic Ring Oscillator
+ * Copyright: Lambda Project Authors. All rights Reserved.
+ * License:  MIT (see LICENSE file in Lambda repository)
+ *************************************************************************/
+module la_ring  #(parameter PROP = "",   // cell property (vt, strength, ..)
+                  parameter STAGES = 7,  // number of stages (must be odd #)
+                  parameter GATE = "inv" // inverting gate (inv,nand2,nand3,..nor4)
+                  )
+   (
+    input  en,
+    output out
+    );
+
+   wire [STAGES-1:0] stage;
+
+   genvar       i;
+   generate
+      for (i = 0; i < STAGES; i = i + 1) begin : gen_stages
+         if (i == 0)
+           la_nand2 #(.PROP(PROP)) i0 (.a(stage[STAGES-1]), .b(en),
+                                       .z(stage[i]));
+         else if (GATE == "inv")
+           la_inv #(.PROP(PROP)) i0 (.a(stage[i-1]),
+                                     .z(stage[i]));
+         else if (GATE == "nand2")
+           la_nand2 #(.PROP(PROP)) i0 (.a(stage[i-1]), .b(stage[i-1]),
+                                       .z(stage[i]));
+         else if (GATE == "nand3")
+           la_nand3 #(.PROP(PROP)) i0 (.a(stage[i-1]), .b(stage[i-1]), .c(stage[i-1]),
+                                       .z(stage[i]));
+         else if (GATE == "nand4")
+           la_nand4 #(.PROP(PROP)) i0 (.a(stage[i-1]), .b(stage[i-1]), .c(stage[i-1]), .d(stage[i-1]),
+                                       .z(stage[i]));
+         else if (GATE == "nor2")
+           la_nor2 #(.PROP(PROP)) i0 (.a(stage[i-1]), .b(stage[i-1]),
+                                       .z(stage[i]));
+         else if (GATE == "nor3")
+           la_nor3 #(.PROP(PROP)) i0 (.a(stage[i-1]), .b(stage[i-1]), .c(stage[i-1]),
+                                      .z(stage[i]));
+         else if (GATE == "nor4")
+           la_nor4 #(.PROP(PROP)) i0 (.a(stage[i-1]), .b(stage[i-1]), .c(stage[i-1]), .d(stage[i-1]),
+                                      .z(stage[i]));
+         else
+           begin
+              initial
+                $display("ERROR: Unimplemented gate type: %s", GATE);
+           end
+      end
+   endgenerate
+
+   la_buf #(.PROP(PROP)) ibuf (.a(stage[STAGES-1]), .z(out));
+
+   // ERROR CHECKING
+   initial
+     begin
+        if (STAGES % 2 == 0) begin
+           $display("ERROR: Ring oscillator stages set to %0d. Must be odd for oscillation.", STAGES);
+           $finish;
+        end
+     end
+endmodule